ACME ACME SYNC ASD Series User manual

INSTALLATION AND OPERATION MANUAL
ASD SERIES
Adjustable Frequency Drive for 3-Phase AC Motors
NEMA 4X / IP65
Variable Speed / Soft-Start AC Motor Drive
With Electronic Motor Overload Protection1
Washdown and Watertight for Indoor and Outdoor Use
Rated for 208 –230 and 400/460 Volt 50 Hz and 60 Hz
3-Phase and PSC2AC Induction Motors from Subfractional thru 10 HP
Operates from 115, 208/230, and 400/460 Volt 50/60 Hz AC Line Input
NOTE: The drive is factory set for
60 Hz motors. For 50 Hzmotors, see
Section 10.4 on page 15.
See Safety Warnings on page 5.
LISTED
IND. CONT.
EQ. –70ZA
3
RoHS
This Manual Covers Models
ASD-24D, 27D, 29, 29 (1P), 45, 48
The information contained in this manual is intended to be accurate.
However, the manufacturer retains the right to make changes in design which may not be included herein.
Notes: 1. UL approved as an electronic overload protector for motors. 2. Special software is available for PSC motors –contact
Technical Support. 3. Installation of a CE approved RFI (EMI) filter is required.
Copyright © 2019
Acme Engineering & Mfg. Corp.
(See Back Cover)

ASD SERIES INSTALLATION AND OPERATION MANUAL
2
TABLE OF CONTENTS
Section Page
1Quick-Start Instructions............................................................................................................................................................................... 4
1.1 Mounting............................................................................................................................................................................................ 4
1.2AC Line Input Fusing ......................................................................................................................................................................... 4
1.3AC Line Input Connection.................................................................................................................................................................. 4
1.4Motor Connection .............................................................................................................................................................................. 4
1.5Ground Connection............................................................................................................................................................................ 4
1.660 Hz and 50 Hz Motor Operation...................................................................................................................................................... 4
1.7Jumper Settings................................................................................................................................................................................. 4
1.8Trimpot Adjustments.......................................................................................................................................................................... 4
1.9Diagnostic LEDs................................................................................................................................................................................ 4
1.10 Signal Isolator.................................................................................................................................................................................... 4
2Safety Warnings.......................................................................................................................................................................................... 5
3Important Application Information................................................................................................................................................................ 5
3.1 Motor with External Fan Cooling........................................................................................................................................................ 5
3.2 Electronic Motor Overload Protection................................................................................................................................................. 5
4Introduction................................................................................................................................................................................................. 6
4.1 Standard Features............................................................................................................................................................................. 6
4.2 Performance Features....................................................................................................................................................................... 6
4.3 Protection Features ........................................................................................................................................................................... 9
5Mounting................................................................................................................................................................................................... 11
6AC Line Input Fusing................................................................................................................................................................................. 13
7Electrical Connections............................................................................................................................................................................... 13
7.1 AC Line Input Connection................................................................................................................................................................ 13
7.2 Motor Connection ............................................................................................................................................................................ 14
7.3 Ground Connection.......................................................................................................................................................................... 14
7.4 Run/Fault Relay Connection............................................................................................................................................................ 14
8Recommended High Voltage Dielectric Withstand Testing (Hi-Pot Testing)............................................................................................... 14
9Reconditioning the Bus Capacitors............................................................................................................................................................ 15
10 Setting Selectable Jumpers....................................................................................................................................................................... 15
10.1 AC Line Input Voltage Selection (ASD-24D, 27D Only) (J1)............................................................................................................. 15
10.2 Motor Horsepower Selection (J2)..................................................................................................................................................... 15
10.3 Automatic Ride-Through or Manual Start Selection (J3)................................................................................................................... 15
10.4 Motor Frequency Selection (J4 and J5)............................................................................................................................................ 15
10.4.1 Setting the Drive for 50 Hz or 60 Hz Motor Operation.......................................................................................................... 15
10.4.2 Setting the Drive for Two Times the Rated Motor RPM ....................................................................................................... 15
10.5 Boost Mode Selection (J6)............................................................................................................................................................... 16
10.6 Braking Mode Selection (J7)............................................................................................................................................................ 16
10.7 Run/Fault Output Relay Operation Selection (J8)............................................................................................................................. 16
10.8Stop Contact Type Selection (J9)..................................................................................................................................................... 16
10.9 Torque Mode Selection (J10)........................................................................................................................................................... 16
10.10Jumper J11 (Factory Use Only) ....................................................................................................................................................... 16
10.11Switching Frequency and GFCI Selection (J12)............................................................................................................................... 16
11 Drive Operation......................................................................................................................................................................................... 16
11.1 Start-Up Procedure.......................................................................................................................................................................... 16
11.2 Restarting the Drive After a Fault Has Cleared ................................................................................................................................ 16
12 Trimpot Adjustments ................................................................................................................................................................................. 17
12.1Minimum Speed Trimpot (MIN)........................................................................................................................................................ 17
12.2Maximum Speed Trimpot (MAX)...................................................................................................................................................... 17
12.3Acceleration Trimpot (ACCEL)......................................................................................................................................................... 17
12.4Deceleration Trimpot (DECEL) ........................................................................................................................................................ 17
12.5DC Injection Brake Trimpot (DECEL)............................................................................................................................................... 17
12.6Slip Compensation Trimpot (COMP)................................................................................................................................................ 17
12.7Motor Overload (I2t) with RMS Current Limit Trimpot (CL)................................................................................................................ 17
12.8Boost Trimpot (BOOST)................................................................................................................................................................... 18
13 Diagnostic LEDs........................................................................................................................................................................................ 18
13.1 Power On LED (PWR)..................................................................................................................................................................... 18
13.2 Status LED (ST)............................................................................................................................................................................... 18
14 Signal Isolator........................................................................................................................................................................................... 18
14.1 Wiring Instructions........................................................................................................................................................................... 19
14.1.1 Direction Selection.............................................................................................................................................................. 19
14.1.2 Main Speed Potentiometer Connection............................................................................................................................... 20
14.1.3 Voltage Following Signal Input Connection ......................................................................................................................... 20
14.1.4 24 Volt DC Power Supply Connection for Transducers or Auxiliary Equipment ................................................................... 20
14.2 Trimpot Adjustments........................................................................................................................................................................ 20
14.2.1 Scale Trimpot (SCALE)....................................................................................................................................................... 20
14.2.2 Offset Trimpot (OFFSET).................................................................................................................................................... 20
14.3 Setting Selectable Jumpers ............................................................................................................................................................. 20
14.3.1 Signal Input Selection (J1) .................................................................................................................................................. 20
14.3.2 Signal Source Selection (J3)............................................................................................................................................... 20
Limited Warranty.............................................................................................................................................................................Back Cover

ASD SERIES INSTALLATION AND OPERATION MANUAL
3
TABLE OF CONTENTS (CONTINUED)
Table Page
1Drive Electrical Ratings............................................................................................................................................................................... 7
2Drive General Performance Specifications.................................................................................................................................................. 7
3Drive Terminal Block Wire Size and Tightening Torque Specifications ...................................................................................................... 13
4Drive Operating Condition and Run/Fault Relay Contact Status................................................................................................................ 14
5Drive Operating Condition and Status LED Indicator................................................................................................................................. 18
6Signal Isolator General Performance Specifications.................................................................................................................................. 19
7Signal Isolator Terminal Blocks TB1 and TB4 Wire Size and Tightening Torque Specifications................................................................. 19
Figure Page
1General Connection Diagram...................................................................................................................................................................... 4
2Maximum Allowed Motor Torque vs. Speed ................................................................................................................................................ 5
3Open Ventilated Motor with External Fan Cooling ....................................................................................................................................... 5
4ASD-24D Drive Layout................................................................................................................................................................................ 8
5ASD-27D Drive Layout................................................................................................................................................................................ 9
6ASD-29, 29 (1P), 45, 48 Drive Layout ....................................................................................................................................................... 10
7ASD-24D Mechanical Specifications ......................................................................................................................................................... 11
8ASD-27D, 29, 29 (1P), 45, 48 Mechanical Specifications .......................................................................................................................... 12
9ASD-24D, 27D, 29 (1P) AC Line Input, Motor, and Ground Connections................................................................................................... 13
10 ASD-29, 45, 48 AC Line Input, Motor, and Ground Connections ............................................................................................................... 14
11 Run/Fault Relay Output Contacts Connection........................................................................................................................................... 14
12 Typical Hi-Pot Test Setup.......................................................................................................................................................................... 14
13 AC Line Input Voltage Selection (ASD-24D, 27D Only) (J1)...................................................................................................................... 15
14 Motor Horsepower Selection (J2).............................................................................................................................................................. 15
15 Automatic Ride-Through or Manual Start Selection (J3)............................................................................................................................ 15
16 Available Torque vs. Output Frequency..................................................................................................................................................... 15
17 Motor Frequency Selection (J4 and J5)..................................................................................................................................................... 15
18 Boost Mode Selection (J6) ........................................................................................................................................................................ 16
19 Braking Mode Selection (J7) ..................................................................................................................................................................... 16
20 Run/Fault Output Relay Operation Selection (J8)...................................................................................................................................... 16
21 Stop Contact Type Selection (J9).............................................................................................................................................................. 16
22 Torque Mode Selection (J10).................................................................................................................................................................... 16
23 Switching Frequency and GFCI Selection (J12) ........................................................................................................................................ 16
24 Minimum Speed Trimpot (MIN) Range...................................................................................................................................................... 17
25 Maximum Speed Trimpot (MAX) Range.................................................................................................................................................... 17
26 Acceleration Trimpot (ACCEL) Range....................................................................................................................................................... 17
27 Deceleration Trimpot (DECEL) Range....................................................................................................................................................... 17
28 DC Injection Brake Trimpot (DECEL) Range............................................................................................................................................. 17
29 Slip Compensation Trimpot (COMP) Range.............................................................................................................................................. 17
30 Current Limit Trimpot (CL) Range ............................................................................................................................................................. 17
31 I2t Trip Time vs. Motor Current .................................................................................................................................................................. 17
32 Boost Trimpot (BOOST) Range................................................................................................................................................................. 18
33 Signal Isolator Layout................................................................................................................................................................................ 19
34 Signal Isolator Unidirectional Main Speed Potentiometer with Forward-Stop-Reverse Switch Connection................................................. 20
35 Signal Isolator Voltage Following Signal Input Connection ........................................................................................................................ 20
36 Signal Isolator 24 Volt DC Power Supply Connection for Transducers or Auxiliary Equipment .................................................................. 20
37 Signal Isolator Trimpot Adjustments.......................................................................................................................................................... 20
38 Signal Isolator Jumper J1 Settings............................................................................................................................................................ 20
39 Signal Isolator Jumper J2 Settings............................................................................................................................................................ 20
UL NOTICE
230 Volt Drives: Suitable for use on a circuit capable of delivering not more than 5 kA RMS symmetrical Amperes. 230 Volts maximum.
Use copper conductors rated 75 °C. Suitable for operation in a maximum surrounding air temperature of 40 °C.
460 Volt Drives: Suitable for use on a circuit capable of delivering not more than 5 kA RMS symmetrical Amperes. 460 Volts maximum.
Use copper conductors rated 75 °C. Suitable for operation in a maximum surrounding air temperature of 40 °C.

ASD SERIES INSTALLATION AND OPERATION MANUAL
4
1 –QUICK-START INSTRUCTIONS
Also see Section 3 –Important Application Information on page 5.
Important: You must read these simplified instructions before proceeding. These instructions are to be used as a reference only and are not
intended to replace the details provided herein. You must read the Safety Warnings on page 5 before proceeding.
Reconditioning the Bus Capacitors: If this drive has been in storage for over one year, it is necessary to recondition the power supply bus
capacitors. To recondition the bus capacitors, apply the AC Line, with the drive in the Stop Mode, for a minimum of one hour. Not following this
procedure will cause the bus capacitors to fail.
WARNING! High Voltage! Disconnect themain power before makingconnections tothe control. Do not depend onthe POWER or STATUS
LEDs, located on the front cover, to no longer be illuminated as a guaranteed power off condition.
1.1 –MOUNTING INSTRUCTIONS
See Section 5 on page 11.
1.2 –AC LINE INPUT FUSING
It is recommended that a fuse(s) or circuit breaker be
installed in the AC Line. Fuse each conductor that is not at
ground potential. For the recommended fuse size, see
Table 1 on page 7. Also see Section 6 on page 13.
1.3 –AC LINE INPUT CONNECTION
Connect theAC Line input to Terminal Block TB1, asshown
in Figure 1. Also see Section 7.1 on page 13.
GFCI Operation: Thedrives are jumper selectable (J12) for
standard and sensitive GFCIs.
CAUTION! The rated AC Line voltage ofthe drive must
match the actual AC Line input voltage. On ASD-24D, 27D
the setting of Jumper J1 must match the actual AC Line
input voltage.
ASD-24D, 27D, 29 (1P): Designed to accept 1-phase
(Terminals L1, L2) AC Line input only. Rated for 208/230 Volt AC Line input with Jumper J1 set to the "230V" position (factory setting). Rated
for 115 Volt AC Line input with Jumper J1 set to the "115V" position. ASD-27D is rated for 1½ HP maximum with 115 Volt AC Line input and
2 HP maximum with 208/230 Volt AC Line input.
ASD-29: Designed to accept 1-phase (Terminals L1, L2) or 3-phase (Terminals L1, L2, L3) AC Line input. Rated for 208/230 Volt AC Line input
only. Rated for 2 HP maximum with 1-phase AC Line input and 3 HP maximum with 3-phase AC Line input.
ASD-45, 48: Designed to accept 3-phase (Terminals L1, L2, L3) AC Line input only. Rated for 400/460 Volt AC Line input only.
1.4 –MOTOR CONNECTION
Connect the motor to Terminal Block TB1 Terminals U, V, W, as shown in Figure 1. See Section 7.2 on page 14. Motor cable length should not
exceed 100 ft. (30 m) –special reactors may be required –contact Technical Support.
1.5 –GROUND CONNECTION
Connect the ground wire (earth) to the ground screw, as shown in Figure 1. See Section 7.3 on page 14. Be sure the motor is also properly
grounded.
1.6 –60 Hz AND 50 Hz MOTOR OPERATION
The drive is factory set for 60 Hzmotor operation (Jumper J4 set to the "1X" position and Jumper J5 set to the "60Hz" position). For 50 Hzmotor
operation, be sure Jumper J4 is set to the "1X" position and set Jumper J5 to the "50Hz" position. See Section 10.4 on page 15.
1.7 –JUMPER SETTINGS
All jumpers have been factory set for most applications. However, some jumpers may need to be set in order to tailor the drive for a specific
application. See Section 10 on page 15 and Section 14.3 on page 20.
IMPORTANT: To ensure that the motor is properly protected with the I2t Overload Protection feature, it is required that Jumper J2 is set to the
corresponding position for the motor horsepower being used, as shown in Figure 14 on page 15.
1.8 –TRIMPOT ADJUSTMENTS
All trimpots have been factory set for most applications. Some applications require adjustment of the trimpots to tailor the drive for a specific
requirement. See Section 12 on page 17 and Section 14.2 on page 20.
1.9 –DIAGNOSTIC LEDs
After power has been applied, observe the LEDs to verify proper drive operation, as described in Section 13 on page 18.
1.10 –SIGNAL ISOLATOR
Provides an isolated interface between non-isolated signal sources and the drive. See Section 14 on page 18.
FIGURE 1
GENERAL CONNECTION DIAGRAM

ASD SERIES INSTALLATION AND OPERATION MANUAL
5
2 –SAFETY WARNINGS
Definition of Safety Warning Symbols
Electrical Hazard Warning Symbol: Failure to observe this warning could result in electrical shock or electrocution.
Operational Hazard Warning Symbol: Failure to observe this warning could result in serious injury or death.
SAFETY WARNING! –PLEASE READ CAREFULLY!
This product must be installed and serviced by a qualified technician, electrician, or electrical maintenance person familiar with its operation
and the hazards involved. Proper installation, which includes electrical connections, fusing or other current protection, and grounding, can
reduce the chance of electrical shocks, and/or fires, in this product or products used with this product, such as electric motors, switches, coils,
solenoids, and/or relays. Do not use this drive in an explosion-proof application. Eye protection must be worn and insulated adjustment tools
must be used when working with drive under power. This product is constructed of materials (plastics, metals, carbon, silicon, etc.) which may
be a potential hazard. Proper shielding, grounding, and filtering of this product can reduce the emission of radio frequency interference (RFI)
which may adversely affect sensitive electronic equipment. It is the responsibility of the equipment manufacturer and individual installer to
supply this Safety Warning to the ultimate end user of this product. (SW 8/2012)
The control contains electronic start/stop circuits, which can be used to start and stop the control. However, these circuits are never to be used
as safety disconnects since they are not fail-safe. Disconnect the input power for this purpose. Be sure to read and follow all instructions
carefully. Fire and/or electrocution can result due to improper use of this product.
This product complies with all CE directives pertinent at the time of manufacture. Contact Technical support for Declaration of
Conformity. Installation of a CE approved RFI filter is required. See RFI Filters & Chokes SelectionGuide D-321 (Part No. A42027) for selection
of filters that meet the Industrial or Residential Standard. Additional shielded cable and/or AC Line cables may be required along with a signal
isolator.
3 –IMPORTANT APPLICATION INFORMATION
3.1 –MOTOR WITH EXTERNAL FAN COOLING
Most totally enclosed fan-cooled (TEFC) and open ventilated 3-phase AC induction motors will overheat if used beyond a limited speed range
at full torque. Therefore, it is necessary to reduce motor load as speed is decreased.
Note: Some fan-cooled motors can be used over a wider speed range. Consult the motor manufacturer for details.
CAUTION! 1. Some motors have low speed characteristics which cause overheating and winding failure under light load or no-load
conditions. If themotor is operated in this mannerfor an extended period of time, it is recommended that the unloadedmotor current be checked
from 2 –15 Hz (60 –450 RPM) to ensuremotor current does not exceed the nameplate rating. Do not use themotor if the motor current exceeds
the nameplate rating. 2. It is recommended that the drive be used with Inverter Duty or TENV motors. Inverter duty and most totally enclosed
non-ventilated (TENV) motors can provide full rated torque over an extended speed range without overheating. See Figure 2. 3. If external fan
cooling is provided, open ventilated motors can also achieve an extended speed range at full rated torque. A box fan or blower with a minimum
of 100 CFM per HP is recommended. Mount the fan or blower so the motor is surrounded by the airflow. See Figure 3.
FIGURE 2
MAXIMUM ALLOWED MOTOR TORQUE VS. SPEED
FIGURE 3
OPEN VENTILATED MOTOR WITH EXTERNAL FAN COOLING
TEFC and Open Ventilated
Inverter Duty
and TENV
Motors Fan Cooled
Motors
3.2 –Electronic Motor Overload Protection
The drive contains Modified I2t Overload Protection (UL approved as an overload protector for motors). Part of this function consists of a Current
Limit (CL) circuit, which limits the drive current to a preset level of 160% of the rated drive current. The CL Trimpot is used to recalibrate the
drive current from 60% thru 200%. The Power Start™ circuit provides an overshoot function that allows most motors to develop more than 200%
of starting torque and breakdown torque.
Standard I2t is undesirable because it causes nuisance tripping. It allows a very high motor current to develop and will turn the drive off after a
short period of time. The RMS Current Limit Circuit, which includes I2t plus an I•t timing circuit (as described in the paragraph below), avoids this
nuisance tripping while providing maximum motor protection.
If the motor is overloaded to 120% of full load (75% of the CL setting), the I•t Timer starts. If the motor continues to be overloaded at the 120%
level, the timer will shut down the drive after 30 minutes. If the motor is overloaded to 160% of full load, the drive will trip in 6 seconds.

ASD SERIES INSTALLATION AND OPERATION MANUAL
6
4 –INTRODUCTION
Thank you for purchasing the ASD Adjustable Frequency Drive. Acme Engineering & Mfg. Corp. is committed to providing total customer
satisfaction by producing quality products that are easy to install and operate. The ASD is manufactured with surface mount components
incorporating advanced circuitry and technology.
The drives are variable speed controls housed in a rugged NEMA 4X / IP65 washdown and watertight die-cast aluminum enclosure. They are
designed to operate 208 –230 and 400/460 Volt 50 & 60 Hz 3-phase AC induction motors from subfractional thru 10 HP. The sine wave coded
Pulse Width Modulated (PWM) output operates at a carrier frequency of 16 kHz which provides high motor efficiency and low noise. Adjustable
Linear Acceleration and Deceleration are provided, making the drive suitable for
soft-start applications.
Due to its user-friendly design, the ASD AC drive is easy to install and operate. Tailoring to specific applications is accomplished with selectable
jumpers and trimpots, which eliminate the computer-like programming required on other drives. However, for most applications no adjustments
are necessary.
Main features include adjustable RMS Current Limit and I2t Motor Overload Protection (UL approved as an electronic overload protector for
motors). In addition, Adjustable Slip Compensation with Static Auto-Tune and Boost provides high torque and excellent load regulation over a
wide speed range. Power Start™ delivers over 200% motor torque to ensure start-up of high frictional loads. Electronic Inrush Current Limit
(EICL™) eliminates harmful AC Line inrush current. A Run/Fault Relay is provided, which can be used to turn equipment on or off, to signal a
warning if the drive is put into theStop Mode, or if a fault has occurred. The drive is suitable for machine or variable torque (HVAC) applications.
A jumper is provided for selection of Regenerative or DC Injection Braking. The drive includes a signal isolator.
Standard front panel features include Diagnostic LEDs for "Power On" and "Drive Status" and a Main Speed Potentiometer. Other features
include a Barrier Terminal Block to facilitate wiring of the ACLine and motor, adjustable trimpots (MIN, MAX, ACCEL, DECEL, COMP, CL, JOG,
BOOST), customer selectable jumpers (Line Voltage (dual voltage models only)), Motor Horsepower, Automatic Ride-Through / Manual Start,
Motor Frequency, Frequency Multiplier, Fixed/Adjustable Boost, Regenerative / Injection Braking, "Run" or "Fault" Output Relay Operation,
NO/NC Stop Contact, Constant/Variable Torque, Switching Frequency, and GFCI operation).
4.1 –STANDARD FEATURES
Industrial Duty Die-Cast Aluminum Case with Hinged Cover: Available in dark gray finish or FDA approved white finish.
Simple to Operate: Does not require programming. Uses trimpots and jumpers, which are factory set for most applications.
Motor HP Selection Jumper (J2): Allows the drive to be used on a wide range of motors without recalibration.
Switching Frequencyand GFCI Selection Jumper (J12): Allows the drive to be operated at 8 kHz or 12 kHz and on Standard (G1) or Sensitive
(G2) GFCIs.
Diagnostic LEDs: Power on (POWER) and drive status (STATUS).
Run/Fault Relay Output Contacts: Can be used to turn equipment on or off, to signal a warning if the drive is put into the Stop Mode, or a fault
has occurred.
Barrier Terminal Block: Facilitates wiring of motor, AC Line, and Run/Fault Relay Output Contacts.
Jumper Selection of Drive Output Frequency: Increases the motor speed up to two times the rated RPM.
Ride-Through: Provides smooth recovery to the previous set speed during a momentary power loss (of less than 2 seconds).
Holding Torque at Zero Speed: Resists motor shaft rotation when the drive is in Stop Mode.
Adjustable Trimpots: Maximum Speed (MAX), Minimum Speed (MIN), Acceleration (ACCEL), Deceleration (DECEL), DC Injection Brake
(DECEL), Boost (BOOST), Current Limit (CL), Jog (JOG), Slip Compensation (COMP).
Selectable Jumpers: AC Line Input Voltage (J1 –ASD-24D, 27D only), Motor Horsepower (J2), Automatic Ride-Through or Manual Start (J3),
Frequency Multiplier (J4), Motor Frequency (J5), Fixed or Adjustable Boost (J6), Regeneration or DC Injection Braking (J7), "Run" or "Fault"
Output Relay Operation (J8), Normally Open or Closed Stop Contact (J9), Constant or Variable Torque (J10), Switching Frequency and GFCI
(J12).
Signal Isolator: Provides an isolated interface between non-isolated signal sources and the drive. See Section 14 on page 18.
4.2 –PEERFORMANCE FEATURES
Power Start™:Provides more than 200% starting torque which ensures startup of high frictional loads.
Slip Compensation with Static Auto-Tune and Boost: Provides excellent load regulation over a wide speed range.
Speed Range: 60:1.
4.3 –PROTECTION FEATURES
Motor Overload (I2t) with RMS Current Limit: Provides motor overload protection which prevents motor burnout and eliminates nuisance trips.
UL approved as an electronic overload protector for motors.
Electronic Inrush Current Limit (EICL™): Eliminates harmful Inrush AC Line current during startup.
Short Circuit: Shuts down the drive if a short circuit occurs at the motor (phase-to-phase).
Regeneration: Eliminates tripping due to high bus voltage caused by rapid deceleration of high inertial loads.
Undervoltage and Overvoltage: Shuts down the drive if the AC Line input voltage goes above or below the operating range.
MOV Input Transient Suppression: Protects the drive components against damaging voltage spikes on the AC Line.
Microcontroller Self-Monitoring and Auto Reboot.

ASD SERIES INSTALLATION AND OPERATION MANUAL
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TABLE 1
DRIVE ELECTRICAL RATINGS
Model No.
Part No.
Ac Line Input
Fuse or
Circuit
Breaker
Rating
(Amps)
Output
Horsepower
Selection
(Jumper J2)1
Net
Weight
Volts AC
(50/60 Hz)
Phase
(Ф)
Maximum
Current
(Amps AC)
Voltage
Range
(Volts AC)
Maximum
Continuous
Load Current
(Amps/Phase)
Maximum
Horsepower
(HP (kW))
lbs
kg
ASD-24D
928935
115
1
14.4
20
0 –208/230
3.6
1 (0.75)
1
3/4
1/2
1/4
1/8
5.9
2.7
208/230
1
8.1
15
ASD-27D
928936
115
1
22
25
0 –208/230
5.5
1½ (1.13)
─
1½2
1
3/4
1/2
10.3
4.7
208/230
1
16.7
20
0 –208/230
6.7
2 (1.5)
2
A
B
C
D
E
ASD-29
928938
208/230
1
16.7
20
0 –208/230
6.7
2 (1.5)
─
23
1½
1
3/4
10.3
4.7
3
11.7
15
0 –208/230
9.0
3 (2.25)
33
ASD-29 (1P)
928937
208/230
1
20.5
25
0 –208/230
9.04
3 (2.25)
3
2
1½
1
3/4
ASD-45
928940
400/460
3
7.2
10
0 –400/4605
5.5
3 (2.25)
3
2
1½
1
3/4
ASD-48
928941
400/460
3
11
15
0 –400/4605
8.3
5 (3.75)
5
3
2
1½
1
Notes: 1. Bold indicates factory setting. ASD-24D: J2 is labeled "1", "3/4", "1/2", "1/4", "1/8". ASD-27D: J2 is labeled "2", "1½", "1", "3/4", "1/2".
ASD-29, (29 (1P), 45, 48: J2 is labeled "A", "B", "C", "D", "E". 2. ASD-27D: Rated 1½ HP maximum with 115 Volt AC Line input and 2 HP
maximum with 208/230 Volt AC Line input. 3. ASD-29: Rated 2 HP maximum with 1-phase AC Line input and 3 HP maximum with 3-phase AC
Line input. 4. ASD-29 (1P): Rated 9 Amps at 35 °C / 95 °F and derated to 8.3 Amps at 40 °C / 104 °F. For ambient temperatures above
40 °C / 104 °F, the drive is derated 2.5% per °C. 5. ASD-45, 48: Rated 0 –400 Volts AC for 50 Hz motor operation and 0 –460 Volts AC for
60 Hz motor operation.
TABLE 2
DRIVE GENERAL PERFORMANCE SPECIFICATIONS
Description
Specification
Factory Setting
115 Volt AC Line Input Voltage Operating Range (Volts AC)
115 (±15%)
—
208/230 Volt AC Line Input Voltage Operating Range(Volts AC)
208 (-15%) / 230 (+15%)
—
400/460 Volt AC Line Input Voltage Operating Range(Volts AC)
380 (-15%) –460 (+15%)
—
Maximum Load (% Current Overload for 2 Minutes)
150
—
Switching Frequency (kHz) (Jumper J12)
8, 12
8
Signal Following Input Voltage Range (Volts DC)
0 –10
—
Output Frequency Resolution (Bits, Hz)
10, 0.06
—
Maximum Speed Trimpot (MAX) Range (% Frequency Setting)
70 –110
100
Minimum Speed Trimpot (MIN) Range (% Frequency Setting)
0 –40
0
Acceleration Trimpot (ACCEL) Range (Seconds)
0.3 –20
1.5
Deceleration Trimpot (DECEL) Range (Seconds)
0.3 –20
1.5
DC Injection Brake (DECEL) (Seconds)
0.3 –6.0
1.7
Boost Trimpot (BOOST) Range (Volts)
0 –30
5
Current Limit Trimpot (CL) Range (% Full Load)
40 –200
160
Jog Trimpot (JOG) Range (% Frequency Setting)
0 –100
35
Slip Compensation Trimpot (COMP) Range at Drive Rating (Volts/Hz)
0 –3
1.5
Motor Frequency Setting (Hz) (Jumper J5)
50, 60
60
Output Frequency Multiplier (1X, 2X) (Jumper J4)1
1, 2
1
Minimum Operating Frequency at Motor (Hz)
1
—
Speed Range (Ratio)
60:1
—
Speed Regulation (30:1 Speed Range, 0 –Full Load) (% Base Speed)2
2.5
—
Overload Protector Trip Time for Stalled Motor (Seconds)
6
—
Undervoltage/Overvoltage Trip Points for 115 Volt AC Line Input (± 5%) (Volts AC)3
76 –141
—
Undervoltage/Overvoltage Trip Points for 208/230 Volt AC Line Input (± 5%) (Volts AC)3
151 –282
—
Undervoltage/Overvoltage Trip Points for 400/460 Volt AC Line Input (± 5%) (Volts AC)3
302 –567
—
Run/Fault Relay Output Contact Rating (Amps at 30 Volts DC, 125 Volts AC, 250 Volts AC)
1, 0.5, 0.25
—
Operating Temperature Range (°C / °F)
0 –40 / 32 –104
—
Operating Humidity Range (% Relative, Non-Condensing)
0 –95
—
Storage Temperature (°C / °F)
-2.5 –+85 / -13 –+185
—
Notes: 1. Allows the motor to operate up to two times the rated RPM. Constant horsepower will result when operating the drive in the "X2" mode
above the motor rated frequency. 2. Dependent on motor performance. 3. Do not operate the drive outside the specified AC Line input voltage
operating range.

ASD SERIES INSTALLATION AND OPERATION MANUAL
8
FIGURE 4
ASD-24D DRIVE LAYOUT (SEE LEGEND BELOW FOR NUMBERED ITEMS)
  

















LEGEND:
1. Adjustable Trimpots on Drive and Signal Isolator: Maximum Speed (MAX), Minimum Speed (MIN), Acceleration (ACCEL), Deceleration
(DECEL), DC Injection Brake (DECEL), Boost (BOOST), Current Limit (CL), Jog (JOG), Slip Compensation (COMP) –see Section 12 on
page 17. Signal Offset (OFFSET) and Signal Scaling (SCALE) –see Section 14.2 on page 20.
2. Jumper J3:Automatic Ride-Through or Manual Start selection. See Section 10.3 on page 15.
3. Jumper J4:Frequency Multiplier selection. See Section 10.4 on page 15.
4. Jumper J2:Motor Horsepower selection. See Section 10.2 on page 15.
5. Jumper J5:Motor Frequency selection. See Section 10.4 on page 19.
6. Jumper J12: Switching Frequency and GFCI selection. See Section 10.11 on page 16.
7. Jumper J6: Adjustable Boost selection. See Section 10.5 on page 16.
8. Jumper J7: Regeneration or DC Injection Braking. See Section 10.6 on page 16.
9. Jumper J8: "Run" or "Fault" Output Relay Operation selection. See Section 10.7 on page 16.
10. Jumper J9: Normally Open or Closed Stop Contact selection. See Section 10.8 on page 16.
11. Jumper J10: Constant or Variable Torque selection. See Section 10.9 on page 16.
12. Jumper J11: Factory use only.
13. Jumper J1: AC Line Input Voltage selection. See Section 10.1 on page 15.
14. Terminal Block TB1: AC Line input and motor connections. See Sections 7.1 and 7.2 on pages 13 and 14.
15. Signal Isolator: See Section 14 on page 18.

ASD SERIES INSTALLATION AND OPERATION MANUAL
9
FIGURE 5
ASD-27D DRIVE LAYOUT (SEE LEGEND BELOW FOR NUMBERED ITEMS)














LEGEND:
1. Adjustable Trimpots on Drive and Signal Isolator: Maximum Speed (MAX), Minimum Speed (MIN), Acceleration (ACCEL), Deceleration
(DECEL), DC Injection Brake (DECEL), Boost (BOOST), Current Limit (CL), Jog (JOG), Slip Compensation (COMP) –see Section 12 on
page 17. Signal Offset (OFFSET) and Signal Scaling (SCALE) –see Section 14.2 on page 20.
2. Jumper J2: Motor Horsepower selection. See Section 10.2 on page 15.
3. Jumper J3: Automatic Ride-Through or Manual Start selection. See Section 10.3 on page 15.
4. Jumper J6: Adjustable Boost selection. See Section 10.5 on page 16.
5. Jumper J4: Frequency Multiplier selection. See Section 10.4 on page 15.
6. Jumper J7: Regeneration or DC Injection Braking. See Section 10.6 on page 16.
7. Jumper J5: Motor Frequency selection. See Section 10.4 on page 15.
8. Jumper J8: "Run" or "Fault" Output Relay Operation selection. See Section 10.7 on page 16.
9. Jumper J9: Normally Open or Closed Stop Contact selection. See Section 10.8 on page 16.
10. Jumper J10: Constant or Variable Torque selection. See Section 10.9 on page 16.
11. Jumper J11: Factory use only.
12. Jumper J12: Switching Frequency and GFCI selection. See Section 10.11 on page 16.
13. Jumper J1: AC Line Input Voltage selection. See Section 10.1 on page 15.
14. Terminal Block TB1: AC Line input and motor connections. See Sections 7.1 and 7.2 on pages 13 and 14.
15. Signal Isolator: See Section 14 on page 18.

ASD SERIES INSTALLATION AND OPERATION MANUAL
10
FIGURE 6
ASD-29, 29 (1P), 45, 48 DRIVE LAYOUT (SEE LEGEND BELOW FOR NUMBERED ITEMS)













LEGEND:
1. Adjustable Trimpots on Drive and Signal Isolator: Maximum Speed (MAX), Minimum Speed (MIN), Acceleration (ACCEL), Deceleration
(DECEL), DC Injection Brake (DECEL), Boost (BOOST), Current Limit (CL), Jog (JOG), Slip Compensation (COMP) –see Section 12 on
page 17. Signal Offset (OFFSET) and Signal Scaling (SCALE) –see Section 14.2 on page 20.
2. Jumper J2: Motor Horsepower selection. See Section 10.2 on page 15.
3. Jumper J3: Automatic Ride-Through or Manual Start selection. See Section 10.3 on page 15.
4. Jumper J6: Adjustable Boost selection. See Section 10.5 on page 16.
5. Jumper J4: Frequency Multiplier selection. See Section 10.4 on page 15.
6. Jumper J7: Regeneration or DC Injection Braking. See Section 10.6 on page 16.
7. Jumper J5: Motor Frequency selection. See Section 10.4 on page 19.
8. Jumper J8: "Run" or "Fault" Output Relay Operation selection. See Section 10.7 on page 16.
9. Jumper J9: Normally Open or Closed Stop Contact selection. See Section 10.8 on page 16.
10. Jumper J10: Constant or Variable Torque selection. See Section 10.9 on page 16.
11. Jumper J11: Factory use only.
12. Jumper J12: Switching Frequency and GFCI selection. See Section 10.11 on page 16.
13. Terminal Block TB1: AC Line input and motor connections. See Sections 7.1 and 7.2 on page 13 and 14.
14. Signal Isolator: See Section 14 on page 18.

ASD SERIES INSTALLATION AND OPERATION MANUAL
11
5 –MOUNTING
It is recommended that the drive be mounted vertically on a flat surface with adequate ventilation. Leave enough room below the drive to allow
for AC Line, motor connections, and any other wiring that is required.Althoughthe drive is designed for outdoor and washdown use,care should
be taken to avoid extreme hazardous locations where physical damage can occur. When mounting the drive in an enclosure, the enclosure
should be large enough to allow for proper heat dissipation so that the ambient temperature does not exceed 40 °C (104 °F) at full rating. See
Figures 7 and 8 on pages 11 and 12.
WARNING! Do not use this drive in an explosion-proof application. Be sure the control is securely mounted.
FIGURE 7
ASD-24D MECHANICAL SPECIFICATIONS (Inches / mm)
*Tighten these screws, in the sequence shown, to 12 in-lbs (14 kg-cm).

ASD SERIES INSTALLATION AND OPERATION MANUAL
12
FIGURE 8
ASD-27D, 29, 29 (1P), 45, 48 MECHANICAL SPECIFICATIONS (Inches / mm)
*Tighten these screws, in the sequence shown, to 12 in-lbs (14 kg-cm).

ASD SERIES INSTALLATION AND OPERATION MANUAL
13
6 –AC LINE INPUT FUSING
The drive does not contain line fuses. Most electrical codes require that each ungrounded conductor contain circuit protection. Do not fuse
neutral or ground connections. It is recommended to install a fuse (Littelfuse 312/314, Buss ABC, or equivalent) or a circuit breaker in series
with each ungrounded conductor. Do not fuse motor leads. For the recommended fuse size, see Table 2 on page 7.
CAUTION! Do not fuse neutral or grounded connections.
7 –ELECTRICAL CONNECTIONS
Wire the drive in accordance with the National Electrical Code requirements and other local codes that may apply to the application.
WARNING! Read Safety Warnings, on page 5, before using the drive. Disconnect main power before making connections to the drive.
To avoid electric shock, be sure to properly ground the drive.
WARNING! HIGH VOLTAGE! REMOTE CONNECTIONS OF POTENTIOMETER, SWITCHES, ETC., MAY HAVE WIRING THAT IS AT
LINE POTENTIAL.
Be sure to properly fuse each AC Line conductor that is not at ground potential. Do not fuse neutral or grounded conductors. A separate AC
Line switch or contactor must be wired as a disconnect so that each ungrounded conductor is opened. For fuse or circuit breaker selection, see
Table 1 on page 7. Also see Section 6.
To maintain the watertight integrity of the drive, be sure to use suitable liquidtight fittings and wiring which are appropriate for the application.
Liquidtight Fittings Kits are available for all models.
The drive is designed with a hinged case so that when the front cover is open, all wiring stays intact. To open the cover, the four screws must
be loosened so they are no longer engaged in the case bottom. After mounting and wiring, close the cover making sure that the wires do not
get caught or crimped as the cover is closed. Tighten the four screws so that the gasket is slightly compressed. The recommended tightening
torque is 12 in-lbs (14 kg-cm) –do not overtighten. See Figures 7 and 8 on pages 11 and 12 for the tightening sequence.
Application Note: To avoid erratic operation, do not bundle the AC Line and motor wires with each other or with wires from signal following,
start/stop contacts, or any other signal wires. Also, do not bundle motor wires from multiple drives in the same conduit. Use shielded cables on
all signal wiring over 12" (30 cm). The shield should be earth grounded on the drive side only. Wire the drive in accordance with the National
Electrical Code requirements and other local codes that may apply.
TABLE 3
DRIVE TERMINAL BLOCK WIRE SIZE AND TIGHTENING TORQUE SPECIFICATIONS
Terminal
Block
Description
Model
Maximum
Wire Size (Cu)
Recommended
Tightening Torque
AWG
mm2
in-lbs
kg-cm
TB1
AC Line Input and
Motor Wiring
ASD-24D
12
3.3
7
8
ASD-27D, 29, 29 (1P), 45, 48
12
3.3
12
14
TB2
Run/Fault Relay
Output Contacts
ASD-24D, 27D, 29, 29 (1P), 45, 48
14
2.08
3.5
4
7.1 –AC LINE INPUT CONNECTION
Connect the AC Line input to Terminal Block TB1. See Figures 9 and 10 on
pages 13 and 14.
CAUTION! The rated AC Line voltage of the drive must match the actual
AC Line input voltage. On ASD-24D, 27D the setting of Jumper J1 must match
the AC Line input voltage.
ASD-24D, 27D: Designed to accept 1-phase AC Line input only (Terminals L1,
L2). Rated for 208/230 Volt AC Line input with Jumper J1 set to the "230V"
position (factory setting). Rated for 115 Volt AC Line input with Jumper J1 set to
the "115V" position. See Figure 9.
ASD-29 (1P): Designed to accept 1-phase AC Line input (Terminals L1, L2).
Rated for 208/230 Volt AC Line input only. See Figure 9.
ASD-29: Designed to accept 1-phase (Terminals L1, L2) or 3-phase (Terminals L1, L2, L3) AC Line input. Rated for 208/230 Volt AC Line input
only. See Figure 10 on page 14.
ASD-45, 48: Designed to accept 3-phase AC Line input only (Terminals L1, L2, L3). Rated for 400/460 Volt AC Line input only. See Figure 10
on page 14.
FIGURE 9
ASD-24D, 27D, 29 (1P)
AC LINE INPUT, MOTOR, AND GROUND CONNECTIONS
  


ASD SERIES INSTALLATION AND OPERATION MANUAL
14
7.2 –MOTOR CONNECTION
Connect the motor to Terminal Block TB1 Terminals U, V,
W. See Figures 9 and 10 on pages 13 and 14.
Motor cable length should not exceed 100 feet (30 m) –
special reactors may be required –contact Technical
Support. Be sure Jumper J2 is set to the corresponding
motor horsepower rating, as described in Section 10.2 on
page 15.
7.3 –GROUND CONNECTION
Connect the Ground Wire (Earth) to the Green Ground
Screw. The Ground Screws are located next to Terminal
Block TB1. See Figures 9 and 10 on pages 13 and 14.
7.4 –RUN/FAULT RELAY CONNECTION
The Run/Fault Relay Output Contacts are located at Terminal Block TB2 and can be used to turn
equipment on or off or to signal a warning if the drive is put into the Stop Mode or a fault has occurred.
See Figure 11. The Run/Fault Relay Contact status for various drive operating conditions is shown in
Table 4.
8 –RECOMMENDED HIGH VOLTAGE DIELECTRIC WITHSTAND TESTING (HI-POT TESTING)
Testing agencies such as UL, CSA,
VDE, etc., usually require that
equipment undergo a hi-pot test. In
order to prevent catastrophic damage
to the drive which has been installed
in the equipment, the following
procedure is recommended. A typical
hi-pot test setup is shown in Figure
12. All drives have been factory hi-pot
tested in accordance with UL
requirements.
WARNING! All equipment AC
Line inputs must be disconnected
from the AC power.
Connect all equipment AC power
input lines together and connect them
to the H.V. lead of the hi-pot tester.
Connect the RETURN lead of the hi-
pot tester to the frame on which the
drive and other auxiliary equipment
are mounted.
The hi-pot tester must have an automatic ramp-up to the test voltage and an automatic ramp-down to zero voltage.
Note: If the hi-pot tester does not have automatic ramping, then the hi-pot output must be manually increased to the test voltage and then
manually reduced to zero. This procedure must be followed for each machine to be tested. A suggested hi-pot tester is Slaughter Model 2550.
CAUTION! Instantly applying the hi-pot voltage will cause irreversible damage to the drive, which will void the warranty.
FIGURE 10
ASD-29, 45, 48
AC LINE INPUT, MOTOR, AND GROUND CONNECTIONS
FIGURE 11
RUN/FAULT RELAY OUTPUT
CONTACTS CONNECTION
TABLE 4
DRIVE OPERATING CONDITION AND RUN/FAULT RELAY CONTACT STATUS
Drive
Operating
Condition
Description
Run Relay Operation
(J8 set to the "R" Position)
(Factory Setting)
Fault Relay Operation
(J8 set to the "F" Position)
Normally
Open
Contact
Normally
Closed
Contact
Normally
Open
Contact
Normally
Closed
Contact
Power Off
Main Power Disconnected
Open
Closed
Open
Closed
Run Mode
Normal Drive Operation
Closed
Open
Closed
Open
Stop Mode
Selected by Operator
Open
Closed
Closed
Open
Fault *
Drive Tripped
Open
Closed
Open
Closed
*Overload, I2t, Short Circuit, Undervoltage and Overvoltage.
FIGURE 12
TYPICAL HI-POT TEST SETUP


ASD SERIES INSTALLATION AND OPERATION MANUAL
15
9 –RECONDITIONIONG THE BUS CAPACITORS
If this drive has been in storage for over one year it is necessary to recondition the power supply bus capacitors. To recondition the bus
capacitors, apply the AC Line, with the drive in the Stop Mode, for a minimum of one hour. Not following this procedure will cause the bus
capacitors to fail.
10 –SETTING SELECTABLE JUMPERS
The drive has customer selectable jumpers which must be set before the drive can be used.
WARNING! HIGH VOLTAGE! Disconnect the AC Line before changing position of jumpers.
10.1 –AC LINE INPUT VOLTAGE SELECTION (ASD-24D, 27D ONLY) (J1)
Jumper J1 is factory installed on Terminal "230V" for 208/230 Volt AC Line input.
For 115 Volt AC Line input, the jumper must be removed and installed on
Terminal "115V". To remove the terminal, use pliers to gently rock the terminal
back and forth while pulling it upward. See Figure 13.
CAUTION! The rated AC Line voltage of the drive must match the actual
AC Line input voltage. On ASD-24D, 27D the setting of Jumper J1 must match
the actual AC Line input voltage.
10.2 –MOTOR HORSEPOWER SELECTION (J2)
Jumper J2 must be set to the corresponding position for the motor being used. See Figure 14.
FIGURE 14
MOTOR HORSEPOWER SELECTION (J2)
ASD-24D
ASD-27D
ASD-29*
ASD-29 (1P)*
ASD-45*
ASD-48*
1
2**
A
3***
3
3
5
3/4
1½**
B
2***
2
2
3
1/2
1
C
1½
1½
1½
2
1/4
3/4
D
1
1
1
1½
1/8
1/2
E
3/4
3/4
3/4
1
The factory setting is shown in bold. *J2 on ASD-29, 29 (1P), 45, 48 is labeled "A, B, C, D, E". **ASD-27D: Rated 1½ HP maximum with
115 Volt AC Line input and 2 HP maximum with 208/230 Volt AC Line input. ***ASD-29: Rated 2 HP maximum with 1-phase AC Line input and
3 HP maximum with 3-phase AC Line input.
10.3 –AUTOMATIC RIDE-THROUGH OR MANUAL START SELECTION (J3)
Jumper J3 is factory set to the "A" or "AUTO" position for Automatic Ride-Through. If the power is
interrupted for up to 2 seconds, the drive will shut down and then "ride-through" and automatically
return to the set frequency. See Figure 15.
If Jumper J3 is set to the "M" or "MAN" position, the drive will have to be manually restarted for a
momentary power loss. Also see Section 13.2 on page 18 for the Status (ST) LED indication.
10.4 –MOTOR FREQUENCY SELECTION (J4 AND J5)
Both Jumpers J4 and J5 must be set for the appropriate motor nameplate frequency rating. See
Figures 16 and 17.
10.4.1 –SETTING THE DRIVE FOR 60 Hz OR 50 Hz MOTOR OPERATION
The drive is factory set to operate 60 Hz motors. Jumper J4 is factory set to the "1X"
position and Jumper J5 is factory set to the "60Hz" position. For 50 Hz motors, set
Jumper J5 to the "50Hz" position and set Jumper J4 to the "1X" position. See Figure 16.
10.4.2 –SETTING THE DRIVE FOR TWO TIMES THE RATED MOTOR RPM
The drive can also operate the motor up to two times the rated RPM. However, constant
horsepower will result when operating the drive in the “2X” mode above the motor rated
frequency. For 120 Hz output with 60 Hz motor, set Jumper J4 to the "2X" position and
be sure Jumper J5 is set to the "60Hz" position. For 100 Hz output with 50 Hz motor, set
Jumper J4 to the "2X" position and set Jumper J5 to the "50Hz" position. See Figure 17.
FIGURE 13
AC LINE INPUT VOLTAGE SELECTION
(ASD-24D*, 27D ONLY)
208/230 Volt AC line Input
(Factory Setting)
115 Volt AC Line Input
*Layout of ASD-24D varies slightly.
FIGURE 15
AUTOMATIC RIDE-THROUGH
OR MANUAL START SELECTION
Automatic Ride-Through
(Factory Setting)
Manual Start
FIGURE 16
AVAILABLE TORQUE VS. OUTPUT FREQUENCY
FIGURE 17
MOTOR FREQUENCY SELECTION
60 Hz
Motor Operation
(Factory Setting)
50 Hz
Motor Operation
120 Hz
Motor Operation
100 Hz
Motor Operation

ASD SERIES INSTALLATION AND OPERATION MANUAL
16
10.5 –BOOST MODE SELECTION (J6)
Jumper J6 is factory set to the "FIX" position for Fixed Boost. For Adjustable Boost using the
BOOST Trimpot, set Jumper J6 to the "ADJ" position. See Figure 18 See Section 12.8 on
page 18 for the Boost Trimpot.
10.6 –BRAKING MODE SELECTION (J7)
Jumper J7 is factory set to the "RG" position for Regenerative Braking when the drive is set
to "STOP". For DC Injection Braking, set Jumper J7 to the "INJ" position. See Figure 19.
When the Injection Brake Mode is selected, the DECEL Trimpot is used to set the amount of
time the DC current is applied to the motor. See Section 12.5 on page 17.
10.7 –RUN/FAULT OUTPUT RELAY OPERATION SELECTION (J8)
Jumper J8 is factory set to the "R" position for "Run" operation of the Run/Fault Relay. For
"Fault" operation of the Run/Fault Relay, set Jumper J8 to the "F" position. See Figure 20.
For the Run/Fault Relay output contacts, see Section 7.4 on page 14. The Run/Fault Relay
contact status for various drive operating conditions is shown in Table 4 on page 14.
10.8 –STOP CONTACT TYPE SELECTION (J9)
Jumper J9 is factory set to the "NO" position for a normally open stop contact. For remote
normally closed stop contact, set Jumper J9 to the "NC" position. See Figure 21.
10.9 –TORQUE MODE SELECTION (J10)
Jumper J10 is factory set to the "VT" position for Variable Torque Mode, which is used for
HVAC and fan applications. For Constant Torque Mode, which is desirable for most machine
applications, set Jumper J10 to the "CT" position. See Figure 22.
10.10 –JUMPER J11
Factory use only.
10.11 –SWITCHING FREQUENCY AND GFCI SELECTION (J12)
Jumper J12 is factory set to the "8K" position for a switching frequency at the motor of 8 kHz.
For 12 kHz switching frequency, set Jumper J12 to the "12K" position. This jumper also allows
the drive to be used on standard ("G1" position) or sensitive ("G2" position) GFCIs. See Figure
23. GFCI operation may increase audible motor noise.
FIGURE 23
SWITCHING FREQUENCY
AND GFCI SELECTION
Sensitive GFCI
Standard GFCI
12 kHz Switching Frequency
8 kHz Switching Frequency*
*Factory setting.
11 –DRIVE OPERATION
11.1 –START-UP PROCEDURE
After the drive has been properly setup (jumpers and trimpots set to the desired positions) and wiring completed, the start-up procedure can
begin. If the AC power has been properly brought to the drive, the power (PWR) LED will illuminate green. The status (ST) LED will indicate
drive status, as described in Section 13.2 on page 18. When the drive is started, the motor will begin to accelerate to the set speed.
WARNING! Using a jumper to eliminate the start/stop function will cause the motor to run at the Main Speed Potentiometer setting when
the AC Line is applied.
Note: If the motor rotates in the incorrect direction, it will be necessary to disconnect the AC Line, reverse any two motor leads, and repeat the
start-up procedure.
11.2 –RESTARTING THE DRIVE AFTER A FAULT HAS CLEARED1,2
The drivemonitorsfive faults: Undervoltage, Overvoltage, Short Circuit at the motor (phase-to-phase), Overload and Phase Loss Detection. See
Section 13.2 on page 18 for the Status (ST) LED indication. See Section 10.3 on page 15 for Automatic Ride-Through or Manual Restart
selection with Jumper J3. The drive can be restarted (after the fault has been cleared) by disconnecting the AC power, and all LEDs are no
longer illuminated, and then reconnecting the AC power.
Notes: 1. For an Overload Fault, be sure the fault has been cleared before restarting the drive. Check the motor current with an AC RMS
responding ammeter. Also, the CL setting may be set too low. See Section 12.7 on page 17. 2. For an Overvoltage Fault, if the drive is set for
Automatic Ride-Through, the drive will automatically restart when the AC Line voltage returns to below the specified Overvoltage Trip Point.
FIGURE 18
BOOST MODE SELECTION
Fixed Boost
(Factory Setting)
Adjustable Boost
FIGURE 19
BRAKING MODE SELECTION
Regenerative Braking
(Factory Setting)
DC Injection Braking
FIGURE 20
RUN/FAULT OUTPUT RELAY
OPERATION SELECTION
"Run" Operation
(Factory Setting)
"Fault" Operation
FIGURE 21
STOP CONTACT TYPE SELECTION
Normally Open
Stop Contact
(Factory Setting)
Normally Closed
Stop Contact
FIGURE 22
TORQUE MODE SELECTION
Variable Torque Mode
(Factory Setting)
Constant Torque
Mode

ASD SERIES INSTALLATION AND OPERATION MANUAL
17
12 –TRIMPOT ADJUSTMENTS
The drive contains trimpots which are factory set for most applications. See Figures 4 –6 on pages 8 –10 for the
location of the trimpots and their approximate factory calibrated positions. Some applications may require
readjustment of the trimpots in order to tailor the drive for a specific requirement. The trimpots may be readjusted as
described in this section.
WARNING! If possible, do not adjust trimpots with the main power applied. If adjustments are made with the
main power applied, an insulated adjustment tool must be used and safety glasses must be worn. High voltage
exists in this drive. Fire and/or electrocution can result if caution is not exercised. The Safety Warnings on page 5
must be read and understood before proceeding.
12.1 –MINIMUM SPEED TRIMPOT (MIN)
Sets the minimum speed of the motor. The MIN Trimpot is factory set to 0% of frequency setting. For a higher
minimum speed setting, rotate the MIN Trimpot clockwise. See Figure 24.
12.2 –MAXIMUM SPEED TRIMPOT (MAX)
Sets the maximum speed of the motor. The MAX Trimpot is factory set to 100% of frequency setting. For a lower
maximum speed setting, rotate the MAX Trimpot counterclockwise. For a higher maximum speed setting, rotate the
MAX Trimpot clockwise. See Figure 25.
12.3 –ACCELERATION TRIMPOT (ACCEL)
Sets the amount of time for the motor to accelerate from zero speed to full speed. The ACCEL Trimpot is factory set
to 1.5 seconds. For longer acceleration time, rotate the ACCEL Trimpot clockwise. For more rapid acceleration,
rotate the ACCEL Trimpot counterclockwise. See Figure 26.
Note: Rapid acceleration settings may cause the current limit circuit to activate, which will extend the acceleration
time.
12.4 –DECELERATION TRIMPOT (DECEL)
Sets the amount of time for the motor to decelerate from full speed to zero speed. The DECEL Trimpot is factory set
to 1.5 seconds. For longer deceleration time, rotate the DECEL Trimpot clockwise. For more rapid deceleration,
rotate the DECEL Trimpot counterclockwise. See Figure 27.
Application Note: On applications with high inertial loads, the deceleration time may automatically increase. This
will slow down the decrease speed to prevent the bus voltage from rising to the Overvoltage Trip point. This function
is called Regeneration Protection. It is recommended that for very high inertial loads that both the ACCEL and
DECEL Trimpots be set to greater than 10 seconds.
12.5 –DC INJECTION BRAKE TRIMPOT (DECEL)
The drive is factory set for Regenerative Braking (Jumper J7 set to the "RG" position). When the drive is set for DC
Injection Brake (Jumper J7 set to the "INJ" position), the DECEL Trimpot is used to set the amount of time the DC
current is applied to the motor. See Figure 28. Also see Section 10.6 on page 16.
12.6 –SLIP COMPENSATION TRIMPOT (COMP)
Sets the amount of Volts/Hz to maintain set motor speed under varying loads. The COMP Trimpot is factory set to
1.5 Volts/Hz, which provides excellent speed regulation for most motors. To increase the slip compensation, rotate
the COMP Trimpot clockwise. To decrease the slip compensation, rotate the COMP Trimpot counterclockwise. See
Figure 29.
The slip compensation may be adjusted as follows:
1. Wire an AC RMS ammeter in series with one motor phase.
2. Run the motor and set the unloaded speed to approximately 50% (900 RPM on 4-pole 1500/1725 RPM motors).
3. Using a tachometer, record the unloaded speed.
4. Load the motor to the nameplate rated current (AC Amps).
5. Adjust the COMP Trimpot until the loaded RPM is equal to the unloaded RPM.
6. The motor is now compensated to provide constant speed under varying loads.
12.7 –MOTOR OVERLOAD (I2t) WITH RMS CURRENT LIMIT TRIMPOT (CL)
UL approved as an electronic overload protector for motors. Sets the current limit (overload),
which limits the maximum current to the motor, which prevents motor burnout and eliminates
nuisance trips. The CL Trimpot is factory set to 160% of the drive rated current. To increase the
current limit, rotate the CL Trimpot clockwise. To decrease the Current limit, rotate the CL
Trimpot counterclockwise. See Figure 30. Also see Figure 31 on page 18.
The current limit may be adjusted as follows:
1. Connect an AC RMS ammeter in series with one motor phase.
2. Set the CL Trimpot fully counterclockwise.
3. Adjust the speed setting to 30%.
4. Lock the motor shaft and adjust the CL Trimpot to 160% of the motor rated current.
Note: This adjustment must be made within 6 seconds or an I2t Trip will occur.
FIGURE 24
MINIMIM SPEED
TRIMPOT RANGE
FIGURE 25
MAXIMUM SPEED
TRIMPOT RANGE
FIGURE 26
ACCELERATION
TRIMPOT RANGE
FIGURE 27
DECELERATION
TRIMPOT RANGE
FIGURE 28
DC INJECTION BRAKE
TRIMPOT RANGE
FIGURE 29
SLIP COMPENSATION
TRIMPOT RANGE
FIGURE 30
CURRENT LIMIT
TRIMPOT RANGE
FIGURE 31
I2t TRIP TIME VS. MOTOR CURRENT

ASD SERIES INSTALLATION AND OPERATION MANUAL
18
CAUTION! Adjusting the current limit above 160% of the motor nameplate rated current can cause overheating of the motor. Consult the
motor manufacturer. Do not leave the motor in a locked rotor condition for more than a few seconds since motor damage may occur. In order to
ensure that the motor is properly protected with the I2t feature, it is required that the CL Trimpot be set for 160% of the motor nameplate rated
current, as described below.
12.8 –BOOST TRIMPOT (BOOST)
The drive is factory set for Fixed Boost (Jumper J6 set to the "FIX" position). When the drive is set for Adjustable
Boost (Jumper J6 set to the "ADJ" position), the BOOST Trimpot can be used to adjust the amount of boost voltage
to the motor. See Figure 32. Also see Section 10.5 on page 16.
Application Note: The Boost function operates over a frequency range of 0 –15 Hz. If the frequency range required
is above 15 Hz, Boost adjustment is not necessary.
WARNING! To avoid motor winding overheating and failure, do not overboost the motor.
Note: An unloaded motor with excessive boost will draw more current than a partially loaded motor.
The boost voltage may be adjusted as follows:
1. Wire an AC RMS ammeter in series with one motor phase.
2. Run the motor unloaded at approximately 4 Hz (or 120 RPM).
3. Increase the boost until the ammeter reaches the motor nameplate rated current (Amps AC).
4. Using the Main Speed Potentiometer, slowly adjust the motor speed over a 1 –15 Hz (0 –450 RPM) range. If the motor current exceeds the
nameplate rating, decrease the boost setting.
13 –DIAGNOSTIC LEDs
The drive contains two diagnostic LEDs mounted on the enclosure cover to display the drive's operational status.
WARNING! Do not depend on the PWR LED as a guaranteed power off condition. Be sure the main power switch or circuit breaker is in
the "OFF" position before servicing this drive.
13.1 –POWER ON LED (PWR)
The "PWR" LED will illuminate green when the AC Line is applied to the drive.
13.2 –STATUS LED (ST)
The "ST LED is a tricolor LED which provides indication of a fault or abnormal condition. The information provided can be used to diagnose an
installation problem such as incorrect input voltage, overload condition, and drive output miswiring. It also provides a signal which informs the
user that all drive and microcontroller operating parameters are normal. See Table 5.
14 –SIGNAL ISOLATOR
The Signal Isolator with Power Supply provides an isolated interface between non-isolated signal sources and the drive. It is used to isolate,
amplify, and condition DC voltage and current signals from any source (tach-generators, transducers, PLCs, and potentiometers). It provides an
isolated input to control motor direction, an isolated 5 Volt DC power supply for potentiometer operation, and an isolated 24 Volt DC power
supply to power transducers or auxiliary equipment. All input connections and power supplies are isolated from the AC line and motor wiring. It
installs easily into the drive with a snap-in mounting base and is wired with a connector.
Main features include voltage or current signal inputs. Other features include power on (PWR) and status indicator (IND) LEDs, barrier terminal
blocks to facilitate wiring, multi-turn trimpots (SCALE, OFFSET), a jumper for voltage or current signal input selection (VOLT, CUR), and a
jumper for signal input type selection (PWM, AN).
FIGURE 32
BOOST
TRIMPOT RANGE
TABLE 5
DRIVE OPERATING CONDITION AND STATUS LED INDICATOR
Drive Operating Condition
Flash Rate1and LED Color
Normal Operation
Slow Flash Green
Overload (120% –160% Full Load)
Steady Red2
I2t (Drive Timed Out)
Quick Flash Red2
Short Circuit
Slow Flash Red
Undervoltage
Quick Flash Red / Yellow3
Overvoltage
Slow Flash Red / Yellow3
Stop
Steady Yellow
Stand-By4
Slow Flash Yellow
Input Phase Loss5
Rapid Flash Yellow
Notes: 1. Slow Flash = 1 second on and 1 second off. Quick Flash = 0.25 second on and 0.25 second off. 2. When the Overload is removed,
before the I2t times out and trips the drive, the "ST" LED will flash green. 3. When the Undervoltage or Overvoltage condition is corrected, the
"ST" LED will flash Red / Yellow / Green. 4. Only if the Forward-Stop-Reverse Switch is installed. 5. ASD-29, with three-Phase AC Line input
and ASD-45, 48. Rapid Flash = 4 mSec on and 6 mSec off.

ASD SERIES INSTALLATION AND OPERATION MANUAL
19
FEATURES
▪Isolated Switching: Provides isolation for PLC open collector or contact switching.
▪Isolated 5 Volt DC Power Supply: Used for Main Speed Potentiometer operation (25 mA DC max.).
▪Isolated 24 Volt DC Power Supply: Used to power a transducer or auxiliary equipment (50 mA DC max.).
▪Trimpot Adjustments (Multi-Turn): Signal Scaling (SCALE) and Signal Offset (OFFSET).
▪Power On LED: Provides indication that power is applied.
▪IND LED: Blinks green to provide indication that the microprocessor is functioning properly.
▪Jumper J1 (Signal Input Selection): "VOLT" position for voltage signal input. "CUR" position for current signal input.
▪Jumper J2 (Signal Type Selection): "AN" position for analog signal input. "PWM" position is for PWM signal input.
▪Jumpers J3 (Signal Source Selection): "NDBM" position for Main Speed Potentiometer Operation (0 –5 Volts DC). "DBM" position for
Voltage Following Operation (0 –10 Volts DC).
▪Jumpers J4: Installed in the "LED" position for the IND LED.
TABLE 6
SIGNAL ISOLATOR GENERAL PERFORMANCE SPECIFICATIONS
Parameter
Specifications
Factory Setting
Signal Scaling Trimpot (SCALE) Input Voltage Range (Volts DC)
0 to 2.5 thru 0 to 25
0 to 5
Signal Offset Trimpot (OFFSET) Range (% of SCALE Trimpot Setting)
0 –±40
0
Input Current Range (mA DC)
4 –20
—
Forward and Reverse Input Switch Types
Dry Contact or Open Collector
—
5 Volt DC Power Supply Maximum Load Current Rating (mA DC)
25
—
24 Volt DC Power Supply Maximum Load Current Rating (mA DC)
50
—
Potentiometer Operation (kΩ)
5
—
Input/Output Linearity (%)
0.1
—
Thermal Drift (millivolts per °C)
0.4
—
Operating Temperature Range (°C / °F)
0 –40 / 32 –104
—
Operating Humidity Range (% Relative, Non-Condensing)
0 –95
—
Storage Temperature (°C / °F)
-25 –+85 / -13 –+185
—
FIGURE 33
SIGNAL ISOLATOR LAYOUT
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
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
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

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
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

14.1 –WIRING INSTRUCTIONS
All connections are made on Terminal Blocks TB1 and TB4 on the Signal Isolator. See Table 7.
WARNING! Disconnect the main power before making connections to the drive or Signal Isolator.
TABLE 7
SIGNAL ISOLATOR TERMINAL BLOCKS TB1 AND TB4
WIRE SIZE AND TIGHTENING TORQUE SPECIFICATIONS
Maximum Wire Size (Cu)
Recommended Tightening Torque
AWG
mm2
in-lbs
kg-cm
16
1.3
3.5
4
14.1.1 –DIRECTION SELECTION
Bidirectional Speed Operation: Wire a Forward-Stop-Reverse Switch to Terminals FWD, COM, and REV. See Figure 34 on page 20.
Unidirectional Speed Operation: For Forward Speed Operation, wire a jumper between Terminals COM and FWD. For Reverse Speed
Operation wire a jumper between Terminals COM and REV. See Figure 35 on page 20.

ASD SERIES INSTALLATION AND OPERATION MANUAL
20
14.1.2 –MAIN SPEED POTENTIOMETER CONNECTION
The Main Speed Potentiometer (5 kΩ), that is installed on the front cover is wired to the Signal Isolator. The potentiometer is connected as
follows: high side to Terminal +5V, wiper to Terminal SIG1, and low side to Terminal COM. See Figure 34.
14.1.3 –VOLTAGE FOLLOWING SIGNAL INPUT CONNECTION
A 0 to 10 Volt DC analog signal input can be used to control motor speed. The drive output will linearly follow the analog signal input. Wire the
signal input positive lead (+) to Terminal SIG1 and the negative lead (-) to Terminal COM. See Figure 35.
Note: Use the SCALE Trimpot to scale the signal input, as described in Section 14.2.1. Do not use the MAX Trimpot on the drive.
14.1.4 –24 VOLT DC POWER SUPPLY CONNECTION FOR TRANSDUCER OR AUXILIARY EQUIPMENT
The 24 Volt DC Power supply can be used to power a transducer or auxiliary equipment. maximum current rating is 50 mA DC. See Figure 36.
FIGURE 34
Unidirectional
Main Speed Potentiometer with
Forward-Stop-Reverse Switch Connection
(J1 Set to "VOLT" Position)
FIGURE 35
Voltage Following
Signal Input Connection
(Shown in Forward Operation)
(J1 Set to "VOLT" Position)
FIGURE 36
24 Volt DC Power Supply Connection
for Transducers or Auxiliary Equipment
14.2 - TRIMPOT ADJUSTMENTS
The Signal Isolator contains trimpots which are factory set for most applications. The Signal Isolator is factory
set for Voltage Following Operation to run the motor from zero speed to full speed with a 0 to 5 Volt DC analog
signal input. For Current Following Operation, see Section 5.2. Some applications may require readjustment of
the trimpots in order to tailor the drive for a specific application.
14.2.1 –SCALE TRIMPOT (SCALE)
The SCALE Trimpot is factory set to run the motor at full speed with a 10 Volt DC analog signal input. For a higher analog signal input (25 Volt
DC maximum), rotate the SCALE Trimpot counterclockwise. For a lower analog signal input (2.5 Volt DC min.), rotate the SCALE Trimpot
clockwise. See Figure 37.
Note: The MAX Trimpot on the drive has been factory set to an Upper Frequency Limit of 60 Hz (50 Hz, for 50 Hz motors). If the application
requires a slightly higher maximum frequency, rotate the MAX Trimpot on the drive to full clockwise position.
14.2.2 –OFFSET TRIMPOT (OFFSET)
The OFFSET Trimpot is used to recalibrate the drive for Current Following Operation. The Signal Isolator will run the motor from zero speed to
full speed with a 4 –20 mA DC analog signal input. For a higher minimum speed setting, rotate the OFFSET trimpot clockwise. For a lower
minimum speed setting, rotate the OFFSET Trimpot counterclockwise. See Figure 37.
14.3 –SETTING SELECTABLE JUMPERS
Jumpers J1 and J3 are used to set the signal input and source. Jumper J2 is set to the "AN" position
for analog signal input. Jumper J4 is set to the "LED" position for the IND LED.
14.3.1 –SIGNAL INPUT SELECTION (J1)
Set Jumper J1 to the "VOLT" position for Main Speed Potentiometer Operation or for Voltage
Following Signal input. See Figure 38.
14.3.2 –SIGNAL SOURCE SELECTION (J3)
Set Jumper J3 to the "NDBM" position for Main Speed Potentiometer Operation. Set Jumper J3 to the "DBM" position for voltage Following
Operation. See Figure 39.
FIGURE 37
TRIMPOT ADJUSTMENTS
FIGURE 38
JUMPERS J1 SETTING
Jumper J1 set to the "VOLT" Position
for Main Speed Potentiometer
or Voltage Following Signal Input
FIGURE 39
JUMPER J3 SETTINGS
Jumper J3 set to the "NDBM" Position
for Main Speed Potentiometer Operation
Jumper J3 set to the "DBM" Position
for Voltage Following Operation