YASKAWA E7U Owner's manual

E7 Drive
Programming Manual
Model: E7U Document Number: TM.E7.02

Quick Reference for E7 Parameters
Parameter
Number
Factory
Setting
User
Setting
Parameter
Number
Factory
Setting
User
Setting
Parameter
Number
Factory
Setting
User
Setting
Parameter
Number
Factory
Setting
User
Setting
A1-000 b5-06100 E1-0660L3-06 120
A1-012 b5-070 E1-073 L4-010
A1-030 b5-080 E1-0818L4-02 2
A1-040 b5-090 E1-091.5 L4-051
A1-050 b5-101 E1-1010.8L4-06 80
A2-01b5-11 0E1-11 0L5-01 0
A2-02b5-12 0E1-12 0L5-02 0
A2-03b5-13 0E1-13 0L5-03 180
A2-04b5-14 1E2-01 kVA Dep. L6-01 6
A2-05b5-15 0E2-03 kVA Dep. L6-02 15
A2-06b5-16 0E2-05 kVA Dep. L6-03 10
A2-07b5-17 0F6-01 1L8-01 0
A2-08b5-18 0F6-02 0L8-02 kVA Dep.
A2-09b5-19 0F6-03 1L8-03 4
A2-10b5-20 1F6-05 0L8-06 kVA Dep.
A2-11b5-21 1H1-01 24 L8-091
A2-12b5-22 0H1-02 14 L8-100
A2-13b5-23 0H1-03 3L8-11 300
A2-14b5-24 0H1-04 4L8-12 45
A2-15b5-25 0H1-05 6L8-15 1
A2-16b5-26 0H2-01 0L8-18 1
A2-17b5-27 60 H2-02A L8-1920
A2-18b5-28 0H3-02 100n1-01 1
A2-19b5-29 1H3-03 0n1-02 1
A2-20b5-30 0H3-08 2n3-01 5
A2-21b8-01 0H3-09 2n3-02 150
A2-22b8-04 kVA Dep. H3-10100 n3-031
A2-23b8-05 20 H3-110 n3-0440
A2-24b8-06 0H3-12 0.3o1-01 6
A2-25C1-01 30 H3-130 o1-021
A2-26C1-02 30 H4-012 o1-030
A2-27C1-03 30 H4-02100 o1-053
A2-28C1-04 30 H4-030 o1-060
A2-29C1-09 10 H4-048 o1-072
A2-30C1-11 0H4-05 50 o1-083
A2-31C2-01 0.2H4-06 0o2-01 1
A2-32C2-02 0.2H4-07 0o2-02 1
b1-011 C4-011 H4-080 o2-030
b1-021 C4-02200 H5-011Fo2-04 kVA Dep.
b1-030 C6-02kVA Dep. H5-023 o2-05 1
b1-041 C6-03kVA Dep. H5-030 o2-06 1
b1-070 C6-04kVA Dep. H5-043 o2-07 0
b1-080 C6-050 H5-051 o2-081
b1-110 d1-010 H5-065 o2-100
b1-120 d1-020 H5-071 o2-120
b2-010.5 d1-030 H5-080 o2-140
b2-0250d1-04 0H5-09 2o2-15 1
b2-030 d1-176 L1-01 1o3-01 0
b2-040 d2-01100 L1-028 o3-020
b2-090 d2-020 L1-03 3T1-02 kVA Dep.
b3-012 d2-030 L1-041 T1-04kVA Dep.
b3-02120 d3-010 L1-050.2
b3-032 d3-020 L2-01 2
b3-050.2 d3-030 L2-02kVA Dep.
b3-141 d3-041 L2-03kVA Dep.
b4-010 d4-010 L2-04kVA Dep.
b4-020 d4-0210L2-05 Voltage Dep.
b5-010 E1-01240V or 480V L3-011
b5-022 E1-03F L3-02120
b5-035 E1-0460L3-04 1
b5-04100 E1-05240V or 480V L3-051

Warnings i
Warnings and Cautions
This Section provides warnings and cautions pertinent to this product, that if not
heeded, may result in personal injury, fatality, or equipment damage. Yaskawa is
not responsible for consequences of ignoring these instructions.
YASKAWA manufactures component parts that can be used in a wide variety of industrial applications. The selection and
application of YASKAWA products remain the responsibility of the equipment designer or end user. YASKAWA accepts no
responsibility for the way its products are incorporated into the final system design. Under no circumstances should any
YASKAWA product be incorporated into any product or design as the exclusive or sole safety control. Without exception, all
controls should be designed to detect faults dynamically and fail safely under all circumstances. All products designed to
incorporate a component part manufactured by YASKAWA must be supplied to the end user with appropriate warnings and
instructions as to that part’s safe use and operation. Any warnings provided by YASKAWA must be promptly provided to the
end user. YASKAWA offers an express warranty only as to the quality of its products in conforming to standards and
specifications published in the YASKAWA manual. NO OTHER WARRANTY, EXPRESS OR IMPLIED, IS OFFERED.
YASKAWA assumes no liability for any personal injury, property damage, losses, or claims arising from misapplication of its
products.
•Read and understand this manual before installing, operating, or servicing this Drive. All warnings, cautions, and
instructions must be followed. All activity must be performed by qualified personnel. The Drive must be installed according
to this manual and local codes.
•Do not connect or disconnect wiring while the power is on. Do not remove covers or touch circuit boards while the power is
on. Do not remove or insert the digital operator while power is on.
•Before servicing, disconnect all power to the equipment. The internal capacitor remains charged even after the power supply
is turned off. Status indicator LEDs and Digital Operator display will be extinguished when the DC bus voltage is below
50 VDC. To prevent electric shock, wait at least five minutes after all indicators are OFF and measure DC bus voltage level
to confirm safe level.
•Do not perform a withstand voltage test on any part of the unit. This equipment uses sensitive devices and may be damaged
by high voltage.
•The Drive is not suitable for circuits capable of delivering more than the specified RMS symmetrical amperes. Install
adequate branch short circuit protection per applicable codes. Refer to the specification. Failure to do so may result in
equipment damage and/or personal injury.
•Do not connect unapproved LC or RC interference suppression filters, capacitors, or overvoltage protection devices to the
output of the Drive. These devices may generate peak currents that exceed Drive specifications.
•To avoid unnecessary fault displays caused by contactors or output switches placed between Drive and motor, auxiliary
contacts must be properly integrated into the control logic circuit.
•YASKAWA is not responsible for any modification of the product made by the user; doing so will void the warranty. This
product must not be modified.
•Verify that the rated voltage of the Drive matches the voltage of the incoming power supply before applying power.
•To meet CE directives, proper line filters and proper installation are required.
WARNING
WARNING

Warnings ii
•Some drawings in this manual may be shown with protective covers or shields removed, to describe details. These must be
replaced before operation.
•Observe electrostatic discharge procedures when handling circuit cards to prevent ESD damage.
•The equipment may start unexpectedly upon application of power. Clear all personnel from the drive, motor, and machine
area before applying power. Secure covers, couplings, shaft keys, and machine loads before energizing the Drive.
•Please do not connect or operate any equipment with visible damage or missing parts. The operating company is responsible
for any injuries or equipment damage resulting from failure to heed the warnings in this manual.
Intended Use
Drives are intended for installation in electrical systems or machinery.
For use in the European Union, the installation in machinery and systems must conform to the following product standards of
the Low Voltage Directive:
EN 50178, 1997-10, Equipping of Power Systems with Electronic Devices
EN 60201-1, 1997-12 Machine Safety and Equipping with Electrical Devices
Part 1: General Requirements (IEC 60204-1:1997)/
EN 61010, 1997-11Safety Requirements for Information Technology Equipment
(IEC 950:1991 + A1:1992 + A2:1993 + A3:1995 + A4:1996, modified)
Other
The E7 Drive is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes, 240Vac
maximum (240V Class) and 480Vac maximum (480V Class).
WARNING

Introduction iii
Introduction
This Section describes the applicability of the Manual
The E7 Drive is a Pulse Width Modulated Drive for 3-Phase AC induction motors. This type of Drive is also known as an
Adjustable Frequency Drive, Variable Frequency Drive, AC Drive, AFD, ASD, VFD, and Inverter. In this manual, the E7
Drive will be referred to as the “Drive”.
The E7 Drive is a variable torque AC drive, designed specifically for HVAC applications in building automation, including
fans, blowers and pumps. A new benchmark for size, cost, performance, benefits, and quality, the E7 includes numerous
built-in features such as network communications, H/O/A, PI, parameter storage and copy functions.
The E7 has embedded communications for the popular building automation protocols, Johnson Controls Metasys®and
Siemens APOGEETM FLN, as well as Modbus®. An optional LONWORKS®interface card is also available.
The LCD keypad/operator is equipped with Hand/Off/Auto functions, copy feature, 7 language choices, and 5 lines of display
with 16 characters per line. User parameter settings can be recovered at any time via “user initialization”. Optional software
allows upload/download, as well as graphing and monitoring of drive parameters from a PC for ease of drive management.
Built-in PI control eliminates the need for closed loop output signals from a building automation system. It includes feedback
display, inverse, square root and differential control functions, and maintains setpoint for closed loop control of fans and
pumps for pressure, flow, or temperature regulation.
This manual is applicable to E7 Drives defined by model numbers of CIMR-E7U_ _ _ _ . This manual reflects the software
version 4010.
This manual is subject to change as product improvements occur. The latest version of the manual can be obtained from the
Yaskawa website www.drives.com . The date shown on the rear cover is changed when revisions are made.

Introduction iv
This manual may describe trademarked equipment, which is the property of other companies. These trademarks are the
property of the registered owner companies and may include the following:
APOGEETM FLN, trademark of Siemens Building Technologies, Inc.
Metasys®, trademark of Johnson Controls Inc.
Modbus®, trademark of Schneider Automation, Inc.
LONWORKS®, trademark of Echelon Corporation
Other Documents and Manuals are available to support special use or installation of this product. These documents may be
provided with the product or upon request. Contact Yaskawa Electric America, Inc. as required. Documents may include the
following:
TM.E7.01.Users… Manual included on CD ROM with product
TM.E7.11.Modbus… Manual included on CD ROM with product
TM.E7.20.LONWORKS… Manual included on CD ROM with product
TM.E7.21.APOGEE … Manual included on CD ROM with product
TM. E7.22. Metasys… Manual included on CD ROM with product
TM.E7B.01. Bypass… This manual should be used when the E7 Drive is packaged with Bypass Control
DriveWizard ... Software and Manual…Included on CD ROM with product
Option Instructions… Included on CD ROM with product

Programming 1
Programming
This Manual contains descriptions of all user accessible parameters contained in the Drive.
Parameters are listed in alpha-numerical order. Parameter number and name, along with a
detailed description and its settings are described on the following pages.
A1 Initialization......................................................................................2
A2 User Parameters .............................................................................4
b1 Sequence.........................................................................................4
b2 DC Braking ....................................................................................10
b3 Speed Search ................................................................................12
b4 Delay Timers..................................................................................15
b5 PI Function.....................................................................................16
b8 Energy Savings Selection..............................................................25
C1 Accel/Decel ...................................................................................26
C2 S-Curve Acc/Dec...........................................................................28
C4 Torque Comp.................................................................................29
d1 Preset References .........................................................................32
d2 Reference Limits............................................................................34
d3 Jump Frequencies .........................................................................35
d4 Sequence.......................................................................................36
E1 V/f Pattern .....................................................................................37
E2 Motor Setup...................................................................................43
F6 Com OPT Selection.......................................................................44
H1 Digital Inputs..................................................................................45
H2 Digital Outputs...............................................................................63
H3 Analog Inputs ................................................................................70
H4 Analog Outputs .............................................................................78
H5 Serial Communications Setup.......................................................83
Modbus Function Code Details...........................................................88
L1 Motor Overload ..............................................................................99
L2 Momentary Power Loss Function ................................................103
L3 Stall Prevention ............................................................................104
L4 Speed Command Loss Detection ................................................108
L5 Fault Restart ................................................................................109
L6 Torque Detection.......................................................................... 111
L8 Hardware Protection .................................................................... 113
N1 Hunting Prevention...................................................................... 117
N3 High Slip Braking......................................................................... 118
O1 Monitor Configuration..................................................................120
O2 Key Selections ............................................................................124
O3 Digital Operator Copy Function...................................................130
T1 Auto-Tuning .................................................................................133
Appendix A - Parameter List............................................................. A-1
Appendix B - Factory Default Settings.............................................. B-1

Programming 2
E7 Basic Programming Parameters
The initialization group contains parameters associated with initial set-up of the Drive. Parameters involving the display
language, access levels, initialization and password are located in this group.
A1 Initialization
A1-00 Select Language
The setting of parameter A1-00 determines which international language the Drive will use to display non-numerical text. The
A1-00 parameter will not be changed by an Initialization of the drive (A1-03= “1110: User Initialize”, “2220: 2-Wire Initial”,
or “3330: 3-Wire Initial”).
If the Drive is accidentally set to a language unfamiliar to the operator, locating the parameter to change the operator language
can be done by performing the following:
1. Press the MENU key until the “-ADV-” MENU is shown in the upper left corner of the digital operator.
2. Press the DATA/ENTER key to enter the programming menu. The first parameter shown is A1-00 (Select Language).
3. Press the DATA/ENTER key again and use the INCREASE and DECREASE arrow keys to choose the preferred language
from the list below:
0 : English
1 : Japanese
2 : Deutsch (German)
3 : Francais (French)
4 : Italiano (Italian)
5 : Español (Spanish)
6 : Portugus (Portuguese)
A1-01 Access Level Selection
A1-01 can be used to allow access to and permission to change all Drive parameters. If the Drive is programmed for Operation
Only (A1-01= “0: Operation Only”), then only the OPERATION and the PROGRAMMING menus are accessible. Within the
PROGRAMMING menu only parameters A1-01 and A1-04 are adjustable.
Setting Description
0 English (factory default)
1 Japanese
2Deutsch
3 Francais
4 Italiano
5Espanol
6Portugues
Setting Description
0OperationOnly
1UserLevel
2 Advanced Level (factory default)

Programming 3
If A1-01 is configured for Advanced Access (A1-01= “2: Advanced Level”), then all menus and all parameters are shown. If
the Access Level Selection is set to Advanced, all parameters should be adjustable unless:
1. The Drive parameters are password protected (A1-04) which will prevent access to A1-00 through A1-03 and all A2
parameters.
2. A digital input has been configured as a Program Lockout (H1-0X= 1B) is active.
3. During serial communication writing, if a parameter change is also attempted via the digital operator, a
“BUSY - WRITE PROTECTED” message will display. Parameter change will not be possible from the digital operator until
an Enter command is received via the serial communication to finish the serial writing process.
A1-03 Initialize Parameters
The Drive can be set back to one of three default states via the A1-03 parameter.
1. User Initialization – 1110: The modified Drive parameters are returned to the values selected as user settings. User settings
are stored when parameter o2-03= “1: Set Defaults”.
2. 2-Wire Initialization – 2220: The Drive parameters are returned to factory default values with digital inputs S1 and S2
configured as Forward Run and Reverse Run, respectively.
3. 3-Wire Initialization – 3330: The Drive parameters are returned to factory default values with digital inputs S1, S2, and S5
configured as Run, Stop, and Forward/Reverse respectively.
After an initialization is performed, parameter A1-03 will automatically be set back to 0.
Fig. 1 2 & 3-Wire Control Wiring Examples
A1-00 Language Selection
E1-03 V/f Pattern Selection
o2-04 kVA Selection
Setting Description
0 No Initialize (factory default)
1110 User Initialize
2220 2-Wire Initialize
3330 3-Wire Initialize
IMPORTANT Some parameters are unaffected by either the 2-Wire or 3-Wire initialization. The following parameters
will not be reset when parameter A1-03=2220 or 3330:
S1
S2
SN
FWD Run/Stop
REV Run/Stop
2-wire control
2-wire control
SN
Run command
(run on momentary close)
Stop command
(stop on momentary open)
Forward/reverse command
(multi-function input)
Sequence input common
Stop
switch
(NC contact)
Operation
switch
(NO contact)
3-wire control

Programming 4
A1-04 Password Entry
Setting Range: 0 to 9999
Factory Default: 0
If parameters A1-01 through A1-03 and all of the A2 parameters are locked (unchangeable) they can be unlocked by entering
the correct password number into A1-04.
Once the correct password number is entered and the specified parameters are unlocked, a 2-Wire or 3-Wire initialization will
reset the password to 0000.
A1-05 Select Password
Setting Range: 0 to 9999
Factory Default: 0
When the value set into A1-04 does NOT match the value set into A1-05, parameters A1-01 thru A1-03 and A2-32 cannot be
changed. All other parameters determined by A1-01 can be changed. Parameter A1-05 can be accessed by displaying
parameter A1-04, then press and hold the RESET key along with the MENU key simultaneously.
A2 User Parameters
A2-01 - A2-32 User Parameter
Setting Range: b1-01 to o3-02
Factory Default: <none>
The Drive can be programmed to select up to 32 parameters for limited-access programming. By setting the Access Level to
User Level (A1-01= “1: User Level”), only the parameters entered into parameters A2-01 through A2-32 can be accessed and
modified by the user.
Parameter A1-01 must first be set to 2 (Advanced Access Level) in order to program the A2 parameters to the desired user
parameters. Once the A2 parameters are programmed, A1-01 should be set to 1(User Access Level) to prevent the user from
changing any parameters except the A1 parameters and the parameters specified in A2-01 through A2-32.
b1 Sequence
The Sequence Group contains parameters associated with starting and stopping the Drive. Parameters involving the Run
Command, Speed Reference location, Stopping Method and Hand/Auto changeover are located in this group.
b1-01 Reference (Speed Command) Source Selection
Setting Description
0 Operator - Digital Preset Speed d1-01
1 Terminals - Analog Input Terminal A1 (or Terminal A2, see Parameter H3-13)
2 Serial Com - RS-485 Terminals R+, R-, S+ and S-
3 Option PCB - Option Board connected at 2CN

Programming 5
In order to run the Drive and motor, the Drive must receive a Run command and a speed command. Parameter b1-01 specifies
from where the speed command is received when in the “Auto mode. Switching into the “Auto” mode can be done by pressing
the AUTO button on the digital operator while the Drive is stopped.
If you want the Drive to follow the speed command set by the digital operator: Use the “Hand” mode by pressing the hand
key or set b1-01= “0: Operator”. The speed command can then be entered into the U1-01 monitor parameter in the “-DRIVE-”
Menu.
If you want the Drive to follow an “Auto” analog speed command: Set b1-01= “1: Terminals”, and connect a 0 – 10 Vdc
speed command signal between terminals A1 and AC or a 4 – 20 mA speed command signal to terminals A2 and AC.
If you want the Drive to receive the speed command from serial communication: Set b1-01= “2: Serial Com”, and connect
the RS-485/422 serial communications cable to terminals R+, R-, S+, and S- on the control I/O terminal block. Be sure to use this
setting when using the LONWORKS®option card.
If you want to use a network communication card other than LONWORKS®to input a speed command: Set b1-01= “3: Option
PCB”, and plug the network option board into the 2CN port on the Drive Control PCB. Consult the manual supplied with the
option board for instructions on integrating the Drive into the network.
b1-02 Run Source
To successfully operate the Drive remotely, an external run command must be received by the Drive. Parameter b1-02 specifies
from where the run command will be accepted.
Although the Run Source and the Reference Source (b1-01) are normally taken from the same source (e.g. digital operator,
terminals or serial communication), this is not always the case.
To issue a run command from the digital operator: Set b1-02= “0: Operator”, and use the HAND and OFF buttons to start and
stop the Drive.
To issue the run command from the terminals: Set b1-02= “1: Terminals”, and select between 2-wire and 3-wire control
operation by doing the following:
2-Wire Control The factory default setting is for 2-wire operation. In the 2-wire configuration a closure between S1 and SN
will be interpreted as a Forward Run command by the Drive. A closure between S2 and SN will be interpreted as a Reverse
Run command. If both S1 and S2 are closed, the Drive will stop (decelerate to zero speed) and the digital operator will display
an EF (external fault) alarm (Flashing).
IMPORTANT If a Run command is input to the Drive but no corresponding speed command is input, the Run indicator on
the digital operator will turn on and the STOP indicator on the digital operator will blink.
IMPORTANT If b1-01= “3: Option PCB” but a network card is not installed in 2CN, an OPE05 Operator Programming
Error will be displayed on the digital operator and the Drive will not run.
Setting Description
0Operator
1Terminals(factory default)
2 Serial Com
3 Option PCB

Programming 6
Fig. 2 2-Wire Control
3-Wire Control When any of the multi-function digital input parameters, H1-01 through H1-05, is set to 0, terminals S1 and
S2 become Run and Stop, respectively. The multi-function digital input that was set to 0 will function as a Forward/Reverse
input for the Drive. When the Forward/Reverse input is open the Drive will run in the Forward direction and when the input is
closed, the Drive will run in the Reverse direction.
In 3-wire operation a momentary closure (> 50mS) of S1 will cause the Drive to run provided that S2 is held closed. The Drive
will stop anytime the S2-SN connection is broken. If the 3-wire configuration is implemented via a 3-wire Initialization
(A1-03= “3330: 3-Wire Initial”), then terminal S5 becomes the Forward/Reverse input.
Fig. 3 3-Wire Control
To issue a run command via serial communication:Set b1-02= “2: Serial Com” and connect the RS-485/422 serial commu-
nication cable to R+, R-, S+, and S- on the removable terminal block. Be sure to use this setting when using the LONWORKS®
option card.
To issue the Run command via the LONWORKS® option card: Set b1-02= “3: Option PCB”, and plug a option board into the
2CN port on the Control PCB. Consult the manual supplied with the option board for instructions on integrating the Drive into
your LONWORKS®System.
b1-03 Stopping Method
There are four methods of stopping the Drive when the Run command is removed.
IMPORTANT If b1-01= ”3: Option PCB” but a network card is not installed in 2CN, an “OPE05” operator programming
error will be displayed on the digital operator and the Drive will not run.
Setting Description
0RamptoStop(factory default)
1CoasttoStop
2 DC Injection to Stop
3Coastw/Timer
S1
S2
SN
FWD Run/Stop
REV Run/Stop
Stop
switch
(NC contact)
Operation
switch
(NO contact)
Run command
(run on momentary close)
Stop command
(stop on momentary open)
Forward/reverse command
(multi-function input)
Sequence input common
S5
SN

Programming 7
“0:Ramp to stop”: When the Run command is removed, the Drive will decelerate the motor to 0 rpm. The rate of
deceleration is determined by the active deceleration time. The factory default Decel Time is in parameter C1-02.
When the output frequency has dropped below the DC Injection Start Frequency in b2-01 (Default = 0.5HZ) DC current will
be injected in the motor at a level determined by b2-02 (50% Default). The DC Injection condition will occur for the time
specified by b2-04 (0.0 Default), to establish the end point of the ramp. DC injection can be used to insure the motor is at zero
rpm prior to the Drive shutting off.
Fig. 4 Deceleration to Stop
The actual deceleration time can be determined by the following formula
If S-Curve characteristics are specified by the Drive programming, they will add to the total time to stop.
“1:Coast to stop”: When the Run command is removed, the Drive will turn off its output and the motor will coast
(uncontrolled deceleration). The friction of the driven equipment will eventually overcome any residual
inertia of the system and the rotation will stop.
Fig. 5 Coast to Stop
IMPORTANT After a stop is initiated, a subsequent Run commands input before the Minimum Baseblock Time (L2-03)
has expired, will be ignored.
ON
OFF
Run Command
Output Frequency Deceleration Time (C1-02)
DC Injection Brake
100 %
0 %
TIME | b2-04 |
b2-01
(CLOSED)
(OPEN)
02)-(C1TimeDecelactiveofSetting
04)-(E1FrequencyMaximum
commandstopofat timeFreq.Output
StoptoTime ×=
02 or C1-04)
ON
OFF
Run Command
Output Frequency Drive Output Frequency Interrupted
100 %
0 %
TIME
Motor Speed
(CLOSED)
(OPEN)

Programming 8
2:DCInj to Stop: When the Run command is removed, the Drive will Baseblock (turn off its output) for the Minimum
Baseblock Time (L2-03). Once the Minimum Baseblock Time has expired, the Drive will inject DC current into the motor
windings to lock the motor shaft. The stopping time will be reduced as compared to Coast to Stop. The level of DC
Injection current is set by parameter b2-02 (50% Default). The DC Injection brake time is determined by the set value in
b2-04 and the output frequency at the time the Run command is removed.
Fig. 6 DC Injection Braking to Stop
3:Coast w/Timer: When the Run command is removed, the Drive will turn off its output and the motor will coast to a stop.
If a Run command is input before time T (operation wait time) expires, the Drive will not run and the Run command will
need to be cycled before operation can occur. The time T (operation wait time) is determined by the output frequency when
the Run command is removed and the active deceleration time (C1-02).
Fig. 7 Coast to Stop with Timer
IMPORTANT If an overcurrent (OC) fault occurs during DCInj to Stop, lengthen the Minimum Baseblock Time (L2-03)
until the fault no longer occurs.
04)-(E1FrequencyMaximum
FrequencyOutput1004)-(b2
TimeBrakeInjectionDC ××
=
ON
OFF
Run Command
Output Frequency Drive Output Voltage Interrupted
DC Injection Brake
DC Injection Brake Time
Minimum Baseblock
Time (L2-03)
100 %
0 %
DC Injection Brake Time
b2-04 x 10
b2-04
10%
100% (Maximum
Output Frequency)
b2-04
(CLOSED)
(OPEN)
Run Command
Output Frequency
Drive Output
Voltage
Interrupted
OFF
ON
Timer Value T
(C1-02)
100 %
0 %
Operation Wait Time (T)
Deceleration
Time (C1-02)
Minimum
Baseblock
Time (L2-03)
Minimum
Output
Frequency
100% (Maximum
Output
Frequency)
Output Frequency at Stop Command Input
Ignored
Run Command
Timer Value T
(OPEN)
(CLOSED)

Programming 9
b1-04 Reverse Operation
For some applications reverse motor rotation is not applicable and may even cause problems (e.g., air handling units,
pumps, etc.). Setting parameter b1-04 to 1 or 3 will cause the Drive to ignore any inputs for reverse operation. Setting
parameter b1-04 to either 2 or 3 will change the motor shaft rotation when a Forward Run command is given by exchanging
the order of the output phasing.
The factory default setting of parameter b1-04 is “1: Disabled”. When b1-04= “1: Disabled”, reverse operation is prohibited
and no exchanging of output phasing occurs.
Drive terminal S2 is a dedicated input for reverse Run/Stop.
b1-07 Local/Remote Run Selection
When the Drive is switched between the Local (Hand) mode (the digital operator) to the Remote (Auto) mode (determined by
b1-01 and b1-02), there is the possibility that a Run command is already present (i.e. a contact closure between S1 and SN
when b1-02= “1: Terminals”). Parameter b1-07 determines whether the Drive will:
Ignore the external Run command until it is removed and re-instated (b1-07= “0: Cycle Extern Run”)
OR
Accept the already present Run command and immediately begin acceleration to the commanded speed
(b1-07= “1: Accept Extrn Run”).
b1-08 Run Command Selection During Programming
As a safety precaution, the Drive will not normally respond to a Run input when the digital operator is being used to adjust
parameters. If it is necessary that external Run commands be recognized even while the Drive is being programmed, set
b1-08= “1: Enabled”.
Setting Description
0 Reverse Enabled
1 Reverse Disabled (factory default)
2 Exchange Phase
3 ExchgPhs, Rev Dsbl
Setting Description
0 Cycle Extern Run (factory default)
1 Accept Extrn Run
IMPORTANT
When switching from local mode to Auto mode when b1-07=“1: Accept Extrn Run” the Drive may start
unexpectedly if the Run command is already applied. Be sure all personnel are clear of rotating machinery
and electrical connections prior to switching between local mode and Auto mode.
Setting Description
0 Disabled (factory default)
1Enabled

Programming 10
b1-11 Drive Delay Time Setting
Setting Range: 0 to 600 Seconds
Factory Default: 0 Seconds
If a time is set into parameter b1-11, the Drive will delay executing any run command until the b1-11 time has expired.
During Drive delay time execution, the digital operator will display:
Both the ALARM and Run indicators will blink while the Drive waits to execute the Run command.
b1-12 Hand Frequency Reference Selection
When the Drive is put into the HAND mode, by pressing the HAND key while in Operation, the Speed Command will be set via
the digital operator by default. If it is desirable to have the Speed Command input from the terminals instead of the digital
operator, set b1-12= “1: Terminals”.
b2 DC Braking
The DC Braking Group contains parameters associated with the DC injection braking feature. Parameters involving the starting
frequency, current level, braking time, and motor pre heat current level are located here.
b2-01 DC Injection Braking Start Frequency
Setting Range: 0.0 to 10.0 Hz
Factory Default: 0.5 Hz
Parameter b2-01 sets the output frequency where the Drive begins DC Injection during Ramp to stop. in order to lock the rotor of
the motor and established the end point of the ramp. If b2-01 < E1-09 (Minimum Frequency), then DC Injection begins at E1-09.
Parameter b2-01 also determines the output frequency that the Drive must be at or below before a Zero Speed condition is
considered true. This affects any digital output configured as a Zero Speed signal (H2-0x= “1: Zero Speed”).
Setting Description
0 Operator (factory default)
1Terminals
IMPORTANT When the Speed Command is set via the terminals, parameter H3-13 will determine whether analog input
terminal A1 or A2 is the Speed Command.
DDLY
Waiting to RUN

Programming 11
Fig. 8 DC Injection Braking During Stopping
b2-02 DC Injection Braking Current
Setting Range: 0 to 100%
Factory Default: 50%
The level of DC Injection Braking Current affects the strength of the magnetic field attempting to lock the motor shaft. Increasing
the level of current will increase the amount of heat generated by the motor windings and should only be increased to the level
necessary to hold the motor shaft. DC Injection current is set in percentage of Drive rated output current. Drive rated output
current is stated on the Drive nameplate.
b2-03 DC Injection Braking Time at Start
b2-04 DC Injection Braking Time at Stop
Setting Range: 0.00 to 10.00 Seconds
Factory Default: 0.00 Seconds
The Drive can be programmed to automatically DC Inject for a predetermined amount of time prior to accelerating to speed
(b2-03) and/or at the end of a Ramp to stop (b2-04). Parameter b2-03 can be used to stop a rotating motor prior to attempting
acceleration (i.e. a wind milling fan). If DC Injection braking at start or Speed Search is not enabled, attempting to drive a spinning
motor may cause nuisance tripping.
Parameter b2-04 can be used to resist any residual motion of the load after the deceleration has finished.
Fig. 9 DC Injection Braking During Starting and Stopping
Parameter b2-04 also serves the function of affecting the length of time DC Injection to stop (b1-03= “2: DC Injection to Stop”)
will occur.
Output Frequency t
b2-01
DC in
j
ection
||
b2-04
ime
Output Frequency DC injection
b2-03 b2-04

Programming 12
b2-09 Motor Pre-Heat Current
Setting Range: 0 to 100%
Factory Default: 0%
A DC current can be circulated within the motor windings while the motor is stopped. The current will produce heat within the
motor and prevent condensation. Parameter b2-09 determines the percentage of Drive rated output current that will be used for
the motor pre-heat function. This function can be useful in applications where the motor sits for extended periods of time in
humid conditions. Motor pre-heating can only be initiated by closing a digital input programmed as a Motor Pre-heat
Input (H1-0x= 60). Check with the motor manufacturer to determine the maximum acceptable current level the motor can
withstand when stopped. Be sure not to exceed the motor manufacturers recommended level.
b3 Speed Search
The Speed Search function allows the Drive to determine the speed of a motor shaft that is being driven by rotational inertia.
Speed Search will allow the Drive to determine the speed of the already rotating motor and begin to ramp the motor to a set
speed without first having to bring it to a complete stop. When a momentary loss of supply power is experienced, the Drive
output is turned off. This results in a coasting motor. When power returns, the Drive can determine the speed of the coasting
motor and start without requiring it to be brought to minimum speed. Speed Search can be programmed to always be active by
setting b3-01 or it can be commanded by remote contact closure by setting a digital input.
There are two forms of Speed Search in the Drive, the speed estimation method and the current detection method.
Parameters L2-03 and L2-04 also affect the current detection method of Speed Search operation.
b3-01 Speed Search Selection
This parameter is effective only when the Drive is given a new “RUN” command.
Speed Estimation: Method (b3-01= 0 or 1) The speed estimation method will calculate the speed using measurements of
residual motor fields. The speed estimation version is bi-directional and will determine both the motor speed and direction. To
enable speed estimation Speed Search at start, set b3-01= “1: SpdsrchF Enable”.
.
IMPORTANT
When setting the Drive for remote Speed Search input, via a contact closure, the method of Speed Search
is determined by the setting of b3-01. If b3-01= ”0: SpdsrchF Disable” then the remote input will initiate
speed estimation method, and if b3-01= ”2: SpdsrchI Disable”, then the remote input will start the current
detection method.
Setting Description
0SpdsrchFDisable
1SpdsrchFEnable
2 SpdsrchI Disable (factory default)
3SpdsrchIEnable
IMPORTANT
If the speed estimation method of Speed Search is to be used, then Auto-tuning must be performed prior to
using Speed Search. If the length of cable between the Drive and motor is ever changed after Auto-tuning
then Auto-tuning should be performed again.

Programming 13
Fig . 10 Spe e d Se arc h ( Est ima ted Sp eed M eth o d) a ft er m o m en t a ry po we r l oss w he r e the p owe r l o ss
time is less than the minimum baseblock time
Fig . 11 Sp eed S ea r ch (E s t i m at e d Spe e d M et h o d) a fter m o m e n tary p ow e r l os s w h ere t he po wer lo ss
time exceeds the minimum baseblock time
Current Detection Method (b3-01=2 or 3): The current detection method starts searching from a predetermined frequency
while monitoring the Drive output current to determine when the rotor speed and the Drive output speed (frequency) match.
The current detection version is not bi-directional. To enable current detection Speed Search at start set b3-01= “3: SpdscrhI
enable” and program any digital input equal to Speed Search 1 (H1-0x= 61) or Speed Search 2 (H1-0x= 62). Speed Search 1
will start searching from the max. frequency (E1-04) and ramp down to meet the rotor speed. Speed Search 2 will start search-
ing from the set frequency and ramp down to meet the rotor speed.
IMPORTANT The speed estimation mode cannot be used when there are multiple motors operated by one Drive or the
motor is two or more frames smaller than the standard size motor per the Drive capacity.
IMPORTANT If a UV1 fault occurs when current detection Speed Search is attempted, increase the setting of L2-04.
AC power supply
Output frequency
Output current
OFFON Start using
speed detected
Set frequency
reference
Minimum baseblock time (L2-03) x 0.75*1
10 ms
*1 Baseblock time may be reduced by the output frequency
immediately before the baseblock.
*2 After AC power supply recovery, motor waits for the
minimum Speed Search Wait Time (b3-05).
*2
Minimum baseblock time (L2-03) x 0.75 *1
the motor waits for the
AC power supply
Output frequency
Output current
OFFON Start using speed detected
Set frequency
reference
Minimum baseblock time
(L2-03)
10 ms
Speed Search Wait Time
(b3-05)
Note: If the frequency immediately before the baseblock is low or the power supply break time is long,
operation may be the same as the search in case 1.
Note: If the frequency immediately before the baseblock is low or the power supply off time is long,
operation may be the same as the search in case 1.

Programming 14
Fig. 12 Speed Search (Current Detection Method) at Startup
Fig . 13 Sp eed S ear c h (Cu rren t Dete cti on Met hod ) aft er mom enta r y pow er los s whe r e the po we r lo ss
time is less than the minimum baseblock time
Fig . 14 Sp eed S ear c h (Cu rren t Dete cti on Met hod ) aft er mom enta r y pow er los s whe r e the po we r lo ss
time exceeds the minimum baseblock time
IMPORTANT If an OC fault occurs when Speed Search is attempted after power loss recovery, increase the setting of L2-03.
Setting of
b3-01
Automatic Speed Search for
all RUN commands
Automatic Speed Search
after momentary power
loss and baseblock
Speed Search Used for
Run with programmed
multi-function input
0 No Yes - Speed Estimation Yes - Speed Estimation
1 Yes - Speed Estimation Yes - Speed Estimation Yes - Speed Estimation
2 No Yes - Current Detection Yes - Current Detection
3 Yes - Current Detection Yes - Current Detection Yes - Current Detection
Run command
Output frequency
Output current
OFF ON
b3-02
Deceleration time set in b3-03
Set frequency
reference
Minimum baseblock time
(L2-03)
Maximum output
frequency or
set frequency
* Lower limit is set using Speed Search Time (b3-05).
*
Search Delay Time (b3-05).
Speed search current level
AC power supply
Output frequency
Output current
OFFON Output frequency before power loss Set frequency
reference
Minimum baseblock time (L2-03)
*1 Baseblock time may be reduced by the output frequency
immediately before baseblock.
*2 After AC power supply recovery, motor waits for the minimum
Speed Search Wait Time (b2-03).
Deceleration
time set in b3-03
b3-02
speed search operating current
*2
*1
b3-05
AC power supply
Output frequency
Output current
OFFON Output frequency before power loss Set frequency
reference
Minimum baseblock time
(L2-03)
Deceleration speed set in b3-03
b3-02
Speed search operating time
Speed search wait time (b3-05)
Deceleration time set in b3-03