Delta VFD-M Series User manual

English-1
Preface
Thank you for choosing DELTA’s high-performance VFD-M Series. The VFD-M Series is
manufactured with high-quality components and materials and incorporates the latest microprocessor
technology available.
Getting Started
This quick start will be helpful in the installation and parameter setting of the AC motor drives. To
guarantee safe operation of the equipment, read the following safety guidelines before
connecting power to the AC motor drives. For detail information, refer to the VFD-M User Manual
on the CD supplied with the drive.
DANGER!
1. AC input power must be disconnected before any wiring to the AC motor drive is made.
2. A charge may still remain in the DC-link capacitors with hazardous voltages, even if the power
has been turned off. To prevent personal injury, please ensure that power has turned off before
opening the AC motor drive and wait ten minutes for the capacitors to discharge to safe voltage
levels.
3. Never reassemble internal components or wiring.
4. The AC motor drive may be destroyed beyond repair if incorrect cables are connected to the
input/output terminals. Never connect the AC motor drive output terminals U/T1, V/T2, and
W/T3 directly to the AC mains circuit power supply.
5. Ground the VFD-M using the ground terminal. The grounding method must comply with the laws
of the country where the AC motor drive is to be installed. Refer to the Basic Wiring Diagram.
6. VFD-M series is used only to control variable speed of 3-phase induction motors, NOT for 1-
phase motors or other purpose.
7. VFD-M series shall NOT be used for life support equipment or any life safety situation.
WARNING!
1. DO NOT use Hi-pot test for internal components. The semi-conductor used in AC motor drive
easily damage by high-pressure.
2. There are highly sensitive MOS components on the printed circuit boards. These components
are especially sensitive to static electricity. To prevent damage to these components, do not
touch these components or the circuit boards with metal objects or your bare hands.
3. Only quality person is allowed to install, wire and maintain AC motor drive.
CAUTION!
1. Some parameters settings can cause the motor to run immediately after applying power.
2. DO NOT install the AC motor drive in a place subjected to high temperature, direct sunlight,
high humidity, excessive vibration, corrosive gases or liquids, or airborne dust or metallic
particles.
3. Only use AC motor drives within specification. Failure to comply may result in fire, explosion or
electric shock.
4. To prevent personal injury, please keep children and unqualified people away from the
equipment.
5. When the motor cable between AC motor drive and motor is too long, the layer insulation of the
motor may be damaged. Please use a frequency inverter duty motor or add an AC output
reactor to prevent damage to the motor. Refer to appendix B Reactor for details.
6. The rated voltage for AC motor drive must be ≤240V for 230V models (≤120V for 115V models,
≤480V for 460V models, ≤600V for 575V models) and the mains supply current capacity must
be ≤5000A RMS (≤10000A RMS for the ≥40hp (30kW) models).

English-2
Specifications
Voltage Class 115V Class
Model Number VFD-XXXM 002 004 007
Max. Applicable Motor Output (kW) 0.2 0.4 0.75
Max. Applicable Motor Output (hp) 0.25 0.5 1.0
Rated Output Capacity (kVA) 0.6 1.0 1.6
Rated Output Current (A) 1.6 2.5 4.2
Maximum Output Voltage (V) 3-Phase proportion to twice the input voltage
Output Frequency (Hz) 0.1~400 Hz
Output Rating
Carrier Frequency (kHz) 1-15
Single phase
Rated Input Current (A) 6 9 16
Rated Voltage, Frequency Single phase, 100-120 VAC, 50/60Hz
Voltage Tolerance +-10% (90-132VAC)
Input Rating
Frequency Tolerance ±5% (47~63Hz)
Cooling Method Fan Cooled
Weight (kg) 1.5 1.5 1.5
Voltage Class 230V Class
Model Number VFD-XXXM 004 007 015 022 037 055
Max. Applicable Motor Output (kW) 0.4 0.75 1.5 2.2 3.7 5.5
Max. Applicable Motor Output (hp) 0.5 1.0 2.0 3.0 5.0 7.5
Rated Output Capacity (kVA) 1.0 1.9 2.7 3.8 6.5 9.5
Rated Output Current (A) 2.5 5.0 7.0 10 17 25
Maximum Output Voltage (V) 3-Phase proportional to input voltage
Output Frequency (Hz) 0.1~400 Hz
Output Rating
Carrier Frequency (kHz) 1-15
Single/3-phase 3-phase
Rated Input Current (A) 6.3/2.9 11.5/7.6 15.7/8.8 27/12.5 19.6 28
Input Current for 1-phase
Models when Using 3-phase
Power
3.2 6.3 9.0 12.5 -- --
Rated Voltage, Frequency Single/3-phase
200-240 VAC, 50/60Hz
3-phase
200-240VAC, 50/60Hz
Voltage Tolerance +-10% (180~264 VAC)
Input Rating
Frequency Tolerance ±5% (47~63 Hz)
Cooling Method Fan Cooled
Weight (kg) 2.2/1.5 2.2/1.5 2.2/1.5 3.2/2.2 3.2 3.2
Voltage Class 460V Class
Model Number VFD-XXXM 007 015 022 037 055 075
Max. Applicable Motor Output (kW) 0.75 1.5 2.2 3.7 5.5 7.5
Max. Applicable Motor Output (hp) 1.0 2.0 3.0 5.0 7.5 10
Rated Output Capacity (kVA) 2.3 3.1 3.8 6.2 9.9 13.7
Rated Output Current (A) 3.0 4.0 5.0 8.2 13 18
Maximum Output Voltage (V) 3-phase Proportional to Input Voltage
Output Frequency (Hz) 0.1~400 Hz
Output Rating
Carrier Frequency (kHz) 1-15
3-phase
Rated Input Current (A) 4.2 5.7 6.0 8.5 14 23
Rated Voltage, Frequency 3-phase 380~480 VAC, 50/60Hz
Voltage Tolerance +-10% (342~528 VAC)
Input Rating
Frequency Tolerance ±5% (47~63 Hz)
Cooling Method Fan Cooled
Weight (kg) 1.5 1.5 2.0 3.2 3.2 3.3

English-3
Voltage Class 575V Class
Model Number VFD-XXXM 007 015 022 037 055 075
Max. Applicable Motor Output (kW) 0.75 1.5 2.2 3.7 5.5 7.5
Max. Applicable Motor Output (hp) 1.0 2.0 3.0 5.0 7.5 10
Rated Output Capacity (kVA) 1.7 3.0 4.2 6.6 9.9 12.2
Rated Output Current (A) 1.7 3.0 4.2 6.6 9.9 12.2
Maximum Output Voltage (V) 3-phase Proportional to Input Voltage
Output Frequency (Hz) 0.1~400 Hz
Output Rating
Carrier Frequency (kHz) 1-10
3-phase
Rated Input Current (A) 2.4 4.2 5.9 7.0 10.5 12.9
Rated Voltage, Frequency 3-phase 500~600 VAC, 50/60Hz
Voltage Tolerance -15%~+10% (425~660 VAC)
Input Rating
Frequency Tolerance ±5% (47~63 Hz)
Cooling Method Fan Cooled
Weight (kg) 1.5 1.5 2.0 3.2 3.2 3.3
General Specifications
Control System SPWM (Sinusoidal Pulse Width Modulation) control (V/F or sensorless vector
control)
Freq. Setting Resolution 0.1Hz
Output Frequency
Resolution 0.1Hz
Torque Characteristics Including the auto-torque, auto-slip compensation; starting torque can be 150% at
5.0Hz
Overload Endurance 150% of rated current for 1 minute
Skip Frequency Three zones, settings range 0.1-400Hz
Accel/Decel Time 0.1 to 600 seconds (4 Independent settings for Accel/Decel Time)
Stall Prevention Level
Frequency Setting 20 to 200%, Setting of Rated Current
DC Injection Braking Operation frequency 0-60Hz, output 0-100% rated current
Start time 0-5 seconds, stop time 0-25 seconds
Braking Torque Approx. 20% (up to 125% possible with option brake resistor or brake unit
externally mounted, 1-15HP braking transistor built-in)
Control Characteristics
V/F Pattern Adjustable V/F pattern
Keypad Setting by
Frequency
Setting External
Signal
Potentiometer-5KΩ/0.5W, 0 to +10VDC, 4 to 20mA RS-485 interface; Multi-
Function Inputs 0 to 5 (7 steps, Jog, up/down)
Keypad Set by RUN, STOP
Operation
Setting
Signal
External
Signal
M0 to M5 can be combined to offer various modes of operation, RS-485 serial
interface (MODBUS).
Multi-Function Input Signal
Multi-step selection 0 to 7, Jog, accel/decel inhibit, first to forth accel/decel
switches, counter, PLC operation, external Base Block (NC, NO), auxiliary motor
control is invalid, selections, driver reset, UP/DOWN key settings, sink/source
selection
Multi-Function Output
Indication
AC drive operating, frequency attained, non-zero, base block, fault indication,
local/remote indication, PLC operation indication, auxiliary motor output, driver is
ready, overheat alarm, emergency stop
Operating Characteristics
Analog Output Signal Analog frequency/current signal output.
Alarm Output Contact 1 Form C contact or open collector output
Operation Functions
AVR, S-Curve, over-voltage, over-current stall prevention, fault records, adjustable
carrier frequency, DC braking, momentary power loss restart, auto tuning,
frequency limits, parameter Lock/Reset, vector control, counter, PID Control, PLC,
MODBUS communication, reverse Inhibition, abnormal reset, abnormal re-start,
digital frequency output, sleep/revival function, 1st/2nd frequency source selections

English-4
General Specifications
Protection Functions Self-testing, over voltage, over current, under voltage, overload, overheating,
external fault, electronic thermal, ground fault.
Display Keypads
6-key, 4-digit, 7-segment LED, 4 status LEDs, master frequency, output frequency,
output current, custom units, parameter values for setup, review and faults, RUN,
STOP, RESET, FWD/REV
Built-in Brake Chopper Built-in for all models
Protection Level IP20
Pollution Degree 2
Installation Location Altitude 1,000 m or lower, keep from corrosive gasses, liquid and dust
Ambient Temperature -10oC to 40oC (-10oC to 50oC without blind plate) Non-Condensing and not frozen
Storage/Transportation
Temperature -20oC to 60oC
Ambient Humidity Below 90% RH (non-condensing)
Enviromental Conditions
Vibration 9.80665m/s2(1G) less than 20Hz, 5.88m/s2 (0.6G) at 20 to 50Hz
Approvals
Note: Do not attempt to connect a single-phase power source to a three-phase models drive.
However it is acceptable to connect two wires of a three-phase power source to a single-phase drive.
Basic Wiring Diagram
Users must connect wiring according to the following circuit diagram shown below.
B2 U/T1
V/T2
W/T3
IM
3~
MO1
MCM
RS-485
NOTE: Do not plug a Modem or telephone line to the RS-485 communication
port, permanent damage may result. Terminal 1& 2 are the power
sources for the optional copy keypad and should not be used while
using RS-485 communication.
6←1
B1
E
RA
RB
RC
120VAC/250VAC 5A
24VDC less than 2.5A
M0
M1
M2
M3
M4
M5
GND
AVI
GND
+10V 10mA(MAX)
3
2
1
VR
0 ～ 10VDC
VR
： 3K ～ 5KΩ
A
FM
GND
+
-
VR(1KΩ)
DC 0
～ 10V
RJ-11
1:15V
2:GND
3:SG-
4:SG+
5:Reserved
6:Reserved
Brake Resistor (optional)
Main Circuit Power
The spec. of main circuit
terminal is M3.0
Factory default
Forward/Stop
Reverse/Stop
Reset
Multi-step 1
Multi-step 2
Multi-step 3
Common signal
Master Frequency setting
factory default is VR which is
on the digital keypad
Analog voltage
Analog current
Power for speed setting
series interface
AC Motor
Grounding
Multi-function indication
output contact
Factory default:
indicates malfunction
Multi-function Photocoupler
output contact 48VDC 50mA
Factory default: Indicates
during operation
Analog output
Factory default:
output frequency
For adjustment
Main circuit (power)
terminals
Control circuit terminals
Shielded leads
* If it is single phase model, please select any of the two input power
terminals in main circuit power.
* Single phase model can be input 3-phase power.
S/L2
T/L3
NFB
R/L1
S/L2
T/L3
SA
OFF
ON
MC
MC
RB
RC
Recommended Circuit
when power supply
is turned OFF by a
fault output
R/L1
ACI
E
E
E

English-5
Description of Digital Keypad
The digital keypad includes two parts: Display panel and keypad. The display panel provides the
parameter display and shows the operation status of the AC drive and the keypad provides
programming and control interface.
DIGITAL KEYPAD
RUN STOP FWD REV
MODE RUN
ENTER STOP
RESET
0
50
100
FREQ SET
LC-M02E
VFD-M
Program/Function mode key
Selects normal mode/
program mode. Displays
the AC drive status, such as
output freq., selects the
parameters.
Enter Key
Press ENTER after
key in the elected
parameters or
change data.
Potentiometer
For master Frequency
setting refer to Pr.00.
LED Display
Indicates motor and
drive parameter.
LED Indicates
Lamp lights during RUN,
STOP, FWD & REV
operation.
Run key
Starts AC drive operation.
STOP/RESET Key
Stops and resets the
parameter after a fault
occurs.
UP and DOWN Key
Sets the parameter number
or changes the numerical
data such as the freq.
reference.
How to Operate the Digital Keypad LC-M02E
MODE
ENTER
or
START
MODE MODE MODE MODE
GO START
ENTER
ENTER
MODE
START
To set direction
or or
(Whe n opera tion sour ce is digit al keypad)
To modify data
NOTE : In the para mete r sett ing mode, you can press to re turn to the sele ction mode.
MODE
parame ter set
successfully
or
parameter set
er ror
move to p revious
display
NOTE: In the sele ction mode, press to set the parameters.
ENTER
Selection mode
To set parameters

English-6
Power Terminals
Model Name
Max.
Current
(input /
output)
Wire
Gauge
AWG
(mm2)
Torque
kgf-cm
(in-lbf)
VFD002M11A 6A/1.6A
VFD004M11A 9A/2.5A
12-14
(3.3-2.1)
VFD007M11A 16A/4.2A 12 (3.3)
VFD004M21A/21B 6.3A/2.5A
VFD004M23A 3.2A/2.5A
VFD007M21A/21B 11.5A/5.0A
VFD007M23A 6.3A/5.0A
12-14
(3.3-2.1)
VFD015M21A/21B 15.7A/7.0A 12 (3.3)
VFD015M23A 9.0A/7.0A
12-14
(3.3-2.1)
14
(12)
VFD022M21A 27A/10A 8 (8.4)
VFD022M23B 15A/10A
8-12
(8.4-3.3)
VFD037M23A 19.6A/17A
8-10
(8.4-5.3)
VFD055M23A 28A/25A 8 (8.4)
15
(13)
VFD007M43B 4.2A/3.0A
12-14
(3.3-2.1)
VFD007M53A 2.4A/1.7A
12-14
(3.3-2.1)
VFD015M43B 5.7A/4.0A
12-14
(3.3-2.1)
VFD015M53A 4.2A/3.0A
12-14
(3.3-2.1)
VFD022M43B 6.0A/5.0A
12-14
(3.3-2.1)
VFD022M53A 5.9A/4.2A
12-14
(3.3-2.1)
14
(12)
VFD037M43A 8.5A/8.2A
8-14
(8.4-2.1)
VFD037M53A 7.0A/6.6A
8-14
(8.4-2.1)
VFD055M43A 14A/13A
8-12
(8.4-3.3)
VFD055M53A 10.5A/9.9A
8-12
(8.4-3.3)
VFD075M43A 23A/18A
8-10
(8.4-5.3)
VFD075M53A 12.9A/12.2A 8-12
(8.4-3.3)
15
(13)
Wire Type: 75 oC Copper Only
Note: It needs to use the Recognized Ring Terminal to conduct a proper wiring.

English-7
Terminal Explanations
Terminal Symbol Explanation of Terminal Function
R/L1, S/L2, T/L3 AC line input terminals (three phase)
U/T1, V/T2, W/T3 Motor connections
B1 – B2 Connections for brake resistor (optional)
Earth Ground
Control Terminal Wiring (Factory Setting)
M0 M1 M2 M3 M4 M5 GND AFM AVI +10V
MCM
MO1
RA RB RC
Relay contactor
Output
Factory Setting
Bias
Potentiometer
Full scale voltmeter
0 to 10 VDC
Factory setting:
fault indication
Photo coupler
output
Forward/Stop
Reverse/Stop
Reset
Multi-step speed 1
Multi-step speed 2
Multi-step speed 3
ACI GND
4~20mA
Wire Type: 75 C, Copper Only
Torque: 4kgf-cm (3.5 in-lbf)
Wire Gauge: 24-12 AWG
Wire Type: Copper Only
Torque: 2kgf-cm (1.73 in-lbf)
Wire Gauge: 22-16 AWG
NPN mode withou t ext ernal po wer
M0
M1
M2
M3
M5
M4
E
GND
+24V
24
Vdc
-
+
NPN Mode
NOTE
M0
M1
M2
M3
M5
M4
E
GND
+24V
NPN mode with external power
FactorySetting
Forward/St op
Reverse/Stop
Reset
Multi-step 1
Multi-step 2
Multi-step 3
Common Signal
Multi-function
InputTerminals
Don't apply the mains voltage
directly to above terminals.
FactorySetting
Multi-function
InputTerminals
Forward/St op
Reverse/Stop
Reset
Multi-step 1
Multi-step 2
Multi-step 3
Terminal
Symbol Terminal Function Factory Settings (NPN mode)
RA Multi-Function Relay Output
(N.O.) a
RA-RC
Resistive Load
5A(N.O.)/3A(N.C.) 277Vac; 5A(N.O.)/3A(N.C.) 30Vdc
Refer to P45 for programming.
RB Multi-Function Relay Output
(N.C.) b
RB-RC
Resistive Load
5A(N.O.)/3A(N.C.) 277Vac; 5A(N.O.)/3A(N.C.) 30Vdc
RC Multi-function Relay Common 5A(N.O.)/3A(N.C.) 277Vac; 5A(N.O.)/3A(N.C.) 30Vdc

English-8
Terminal
Symbol Terminal Function Factory Settings (NPN mode)
M0 Multi-function auxiliary input
M1 Multi-function input 1
M2 Multi-function input 2
M3 Multi-function input 3
M4 Multi-function input 4
M5 Multi-function input 5
M0~M5-GND
Refer to P38~P42 for programming the multi-function
inputs.
ON: the activation current is 10 mA.
OFF: leakage current tolerance is 10μA.
GND Common Signal
+10V +10 Vdc Output +10V-GND
It can supply +10 VDC power.
AVI
Analog Voltage Input
ACM
AVI
+10V
Internal Circuit
AVI Circuit
Impedance: 20kΩ
Resolution: 10 bits
Range: 0~10Vdc = 0~Max.Output Frequency
ACI
Analog Current Input
ACM
ACI
Internal Circuit
ACI Circuit
Impedance: 250Ω
Resolution: 10 bits
Range: 4~20mA = 0~Max.Output Frequency
AFM
Analog Output Meter
Internal Circuit
ACM Circuit
AFM
ACM
0~10V Potentiometer Max. 2mA
0 to 10V, 2mA
Impedance: 100kΩ
Output Current: 2mA max
Resolution: 8 bits
Range: 0 ~ 10Vdc
MO1 Multi-function Output Terminal
(Photocoupler)
Maximum: 48Vdc, 50mA
Refer to P45 for programming.
MO1-DCM
MO1
MCM
Internal Circuit
Max: 48Vdc/50mA
MCM Multi-function Output Common
(Photocoupler) Common for Multi-function Outputs
Note: Use twisted-shielded, twisted-pair or shielded-lead wires for the control signal wiring. It is
recommended to run all signal wiring in a separate steel conduit. The shield wire should only be
connected at the drive. Do not connect shield wire on both ends.

English-9
SUMMARY OF PARAMETER SETTINGS
a: The parameter can be set during operation
Parameter Explanation Settings Factory
Setting Customer
aPr.00 Source of Frequency
Command
00: Master frequency determined by
digital keypad (LC-M02E)
01: Master frequency determined by 0 to
+10 V input on AVI terminal with
jumpers
02: Master frequency determined by 4 to
20mA input on ACI terminal with
jumpers
03: Master frequency determined by RS-
485 Communication port
04: Master frequency determined by
potentiometer on digital keypad
00
aPr.01 Source of Operation
command
00: Operation determined by digital
keypad
01: Operation determined by external
control terminals, keypad STOP is
effective
02: Operation determined by external
control terminals, keypad STOP is
ineffective
03: Operation determined by RS-485
communication port, keypad STOP is
effective
04: Operation determined by RS-485
communication port, keypad STOP is
ineffective
00
Pr.02 Stop Method 00: Ramp stop
01: Coast Stop 00
Pr.03 Maximum Output
Frequency 50.00 to 400.0 Hz 60.00
Pr.04
Maximum Voltage
Frequency (Base
Frequency)
10.00 to 400.0Hz 60.00
Pr.05 Maximum Output
Voltage (Vmax)
115V/230V: 0.1 to 255.0V
460V: 0.1 to 510.0V
575V: 0.1 to 637.0V
220.0
440.0
575.0
Pr.06 Mid-point Frequency 0.10 to 400.0Hz 1.50
Pr.07 Mid-point Voltage
115V/230V: 0.1 to 255.0V
460V: 0.1 to 510.0V
575V: 0.1 to 637.0V
10.0
20.0
26.1
Pr.08 Minimum Output Freq 0.10 to 20.00Hz 1.50
Pr.09 Minimum Output
Voltage
115V/230V: 0.1 to 255.0V
460V: 0.1 to 510.0V
575V: 0.1 to 637.0V
10.0
20.0
26.1
aPr.10 Acceleration Time 1 0.1 to 600.0 sec or 0.01 to 600.0 sec 10.0
aPr.11 Deceleration Time 1 0.1 to 600.0 sec or 0.01 to 600.0 sec 10.0
aPr.12 Acceleration Time 2 0.1 to 600.0 sec or 0.01 to 600.0 sec 10.0
aPr.13 Deceleration Time 2 0.1 to 600.0 sec or 0.01 to 600.0 sec 10.0
Pr.14 Accel S-curve 00 to 07 00
aPr.15 Jog Accel/Decel Time 0.1 to 600.0 sec or 0.01 to 600.0 sec 1.0

English-10
Parameter Explanation Settings Factory
Setting Customer
aPr.16 Jog Frequency 0.00 to 400.0 Hz 6.00
aPr.17 1st Step Speed Freq. 0.00 to 400.0Hz 0.00
aPr.18 2nd Step Speed Freq. 0.00 to 400.0Hz 0.00
aPr.19 3rd Step Speed Freq. 0.00 to 400.0Hz 0.00
aPr.20 4th Step Speed Freq. 0.00 to 400.0Hz 0.00
aPr.21 5th Step Speed Freq. 0.00 to 400.0Hz 0.00
aPr.22 6th Step Speed Freq. 0.00 to 400.0Hz 0.00
aPr.23 7th Step Speed Freq. 0.00 to 400.0Hz 0.00
Pr.24 Reserve Operation
Inhibition
00: Enable REV operation
01: Disable REV operation 00
Pr.25 Over-Voltage Stall
Prevention
00: Disable
115V/230V: 330 to 450 Vdc
460V: 660 to 900 Vdc
575V: 825 to 1025 Vdc
390
780
975
Pr.26
Over-current Stall
Prevention during
Acceleration
00: Disable
20% to 200% 150
Pr.27
Over-current Stall
Prevention during
Operation
00: Disable
20% to 200% 150
Pr.28 DC Braking Current
Level 00 to 100 % 00
Pr.29 DC Braking during
Start-up 0.0 to 5.0 sec 0.0
Pr.30 DC Braking during
Stopping 0.0 to 25.0 sec 0.0
Pr.31 Start-point for DC
Braking 0.00 to 60.00 Hz 0.00
Pr.32 Momentary Power Loss
Operation Selection
00: Stop operation after momentary
power loss
01: Continues after momentary power
loss, speed search starts with Master
Frequency
02: Continues after momentary power
loss, speed search starts with
Minimum output Frequency
00
Pr.33 Maximum Allowable
Power Loss Time 0.3 to 5.0 sec 2.0
Pr.34 Base-Block Time for
Speed Search 0.3 to 5.0 sec 0.5
Pr.35 Maximum Current
Level for Speed Search 30 to 200 % 150
Pr.36 Upper Bound of Output
Frequency 0.10 Hz to 400.0 Hz 400.0
Pr.37 Lower Bound of Output
Frequency 0.00 Hz to 400.0 Hz 0.00

English-11
Parameter Explanation Settings Factory
Setting Customer
Pr.38 Multi-function Input
Terminal (M0,M1)
00: M0: FWD/STOP, M1: REV/STOP
01: M0: RUN/STOP, M1: REV/FWD
02: M0, M1, M2: 3-wire operation control
mode
00
Pr.39
Pr.40
Pr.41
Pr.42
Multi-function Input
Terminal (M2)
Multi-function Input
Terminal (M3)
Multi-function Input
Terminal (M4)
Multi-function Input
Terminal (M5)
00: No Function
01: Output OFF (N.O.) (enabled when
running)
02: Output OFF (N.C.) (enabled when
running)
03: External Fault (normally open) N.O.
04: External Fault (normally close) N.C
05: RESET
06: Multi-Step Speed Command 1
07: Multi-Step Speed Command 2
08: Multi-Step Speed Command 3
09: Jog Operation
10: Accel/Decel Speed Inhibit
11: First or Second Accel/Decel Time
12: Base-block (B.B.) (N.O)
13: Base-block (B.B.) (N.C)
14: Increase Master Frequency
15: Decrease Master Frequency
16: Run PLC Program
17: Pause PLC
18: Counter Trigger Signal
19: Counter Reset
20: No function
21: RESET command (N.C)
22: Control source: External Terminal
23: Control source: Keypad
24: Control source: Communication
25: Parameter Lock (Write disable, Read
is always 0)
26: PID Disable (N.O.)
27: PID Disable (N.C.)
28: Second Source for Frequency
Command
29: Forward (contact is open) / Reverse
(contact is close)
30: One-Shot PLC Run
31: Index input signal
32: Counter Incremented by Drive Output
Frequency
05
06
07
08
aPr.43 Analog Output Signal
00: Analog Frequency Meter (0 to
Maximum Output Frequency)
01: Analog Current Meter (0 to 250% of
the rated AC drive current)
02: Feedback signal (0 - 100%)
03: Output power (0 - 100%)
00
aPr.44 Analog Output Gain 00 to 200 % 100

English-12
Parameter Explanation Settings Factory
Setting Customer
Pr.45
Pr.46
Multi-Function Output
Terminal 1
(Photocoupler output)
Multi-function Output
Terminal 2
(Relay Output)
00: AC Drive Operational
01: Maximum Output Frequency Attained
02: Zero Speed
03: Over-Torque Detection
04: Base-Block (B.B) Indication
05: Low Voltage Indication
06: AC Drive Operation Mode
07: Fault Indication
08: Desired Frequency Attained
09: PLC Program Running
10: PLC Program Step Completed
11: PLC Program Completed
12: PLC Operation Paused
13: Top Count Value Attained
14: Preliminary Counter Value Attained
15: Warning (PID feedback loss,
communication error)
16: Below the Desired Frequency
17: PID supervision
18: Over Voltage supervision
19: Over Heat supervision
20: Over Current stall supervision
21: Over Voltage stall supervision
22: Forward command
23: Reverse command
24: Zero Speed (Includes Drive Stop)
00
07
aPr.47 Desired Frequency
Attained 0.00 to 400.0 Hz 0.00
aPr.48 Adjust Bias of External
Input Frequency 0.00 to 200.0% 0.00
aPr.49 Potentiometer Bias
Polarity
00: Positive Bias
01: Negative Bias 00
aPr.50 Potentiometer
Frequency Gain 0.10 to 200.0% 100.0
Pr.51 Potentiometer Reverse
Motion Enable
00: Reverse Motion Disabled in negative
bias
01: Reverse Motion Enabled in negative
bias
00
aPr.52 Motor Rated Current 30.0% FLA to 120.0% FLA FLA
aPr.53 Motor No-Load Current 00%FLA to 99%FLA 0.4*
FLA
aPr.54 Torque Compensation 00 to 10 00
aPr.55 Slip Compensation 0.00 to 10.00 0.00
Pr.56 Reserved
Pr.57 AC Drive Rated Current Display (unit: 0.1A) ##.#
Pr.58 Electronic Thermal
Overload Relay
00: Standard Motor (self cool motor)
01: Inverter Motor (auxiliary cool fan on
motor)
02: Inactive
02

English-13
Parameter Explanation Settings Factory
Setting Customer
aPr.59 Electronic Thermal
Motor Overload 30 to 300 sec 60
Pr.60 Over-Torque Detection
Mode
00: Over-Torque Detection Disable
01: Enabled during constant speed
operation until the allowable time for
detection (Pr.62) elapses.
02: Enabled during constant speed
operation and halted after detection.
03: Enabled during acceleration until the
allowable time for detection (Pr.62)
elapses.
04: Enabled during acceleration and
halted after detection.
00
Pr.61 Over-Torque Detection
Level 30 to 200 % 150
Pr.62 Over-Torque Detection
Time 0.0 to 10.0 seconds 0.1
Pr.63 Loss of ACI (4-20mA)
00: Decelerate to 0 Hz
01: Stop immediately and display "EF"
02: Continue operation by last frequency
command
00
aPr.64 User Defined Function
for Display
00: Display AC drive output Frequency
(Hz)
01: Display User-defined output
Frequency (H*Pr.65)
02: Output Voltage (E)
03: DC Bus Voltage (u_)
04: PV (i)
05: Display the value of internal counter
(c)
06: Display the setting frequency (F or
o=%)
07: Display the parameter setting (Pr.00)
08: Reserved
09: Output Current (A)
10: Display program operation (0.xxx),
Fwd, or Rev
06
aPr.65 Coefficient K 0.01 to 160.0 1.00
aPr.66 Communication
Frequency 0.00 to 400.0 Hz 0.00
Pr.67 Skip Frequency 1 0.00 to 400.0 Hz 0.00
Pr.68 Skip Frequency 2 0.00 to 400.0 Hz 0.00
Pr.69 Skip Frequency 3 0.00 to 400.0 Hz 0.00
Pr.70 Skip Frequency Band 0.00 to 20.00 Hz 0.00
01 to 15
The factory setting of VFD075M43A is 10. 15
Pr.71 PWM Carrier
Frequency 575V series: 01 to 10 6
Pr.72 Auto Restart Attempts
after Fault 00 to 10 00

English-14
Parameter Explanation Settings Factory
Setting Customer
Pr.73 Present Fault Record 00
Pr.74 Second Most Recent
Fault Record 00
Pr.75 Third Most Recent
Fault Record
00: No fault occurred
01: Over-current (oc)
02: Over-voltage (ov)
03: Overheat (oH)
04: Overload (oL)
05: Overload 1 (oL1)
06: External Fault (EF)
07: CPU failure 1 (CF1)
08: CPU failure 3 (CF3)
09: Hardware Protection Failure (HPF)
10: Over-current during acceleration (oca)
11: Over-current during deceleration
(ocd)
12: Over-current during steady state
operation (ocn)
13: Ground fault or fuse failure(GFF)
14: Low Voltage (not record)
15: 3 Phase Input Power Loss
16: EPROM failure (CF2)
17: External interrupt allowance(bb)
18: Overload (oL2)
19: Auto Adjustable accel/decel failure
(CFA)
20: CPU self detection failure (codE)
00
Pr.76 Parameter Lock and
Configuration
00: All parameters can be set/read
01: All parameters are read-only
02-08: Reserved
09: Resets all parameters to 50Hz factory
defaults
10: Resets all parameters to 60Hz factory
defaults
00
Pr.77
Time for Auto Reset the
Restart Times in
Abnormality
0.1 to 6000.0 sec 60.0
Pr.78 PLC Operation Mode
00: Disable PLC operation
01: Execute one program cycle
02: Continuously execute program cycles
03: Execute one program cycle step by
step
04: Continuously execute one program
cycle step by step
00
Pr.79 PLC FWD/REV Motion 00 to 127 00
Pr.80 Identity Code of the AC
Motor Drive Read only ##
Pr.81 Time Duration of 1st
Step Speed 00 to 9999 sec 00
Pr.82 Time Duration of 2nd
Step Speed 00 to 9999 sec 00
Pr.83 Time Duration of 3rd
Step Speed 00 to 9999 sec 00

English-15
Parameter Explanation Settings Factory
Setting Customer
Pr.84 Time Duration of 4th
Step Speed 00 to 9999 sec 00
Pr.85 Time Duration of 5th
Step Speed 00 to 9999 sec 00
Pr.86 Time Duration of 6th
Step Speed 00 to 9999 sec 00
Pr.87 Time Duration of 7th
Step Speed 00 to 9999 sec 00
Pr.88 Communication
Address 01 to 254 01
Pr.89 Transmission Speed
00: 4800 bps
01: 9600 bps
02: 19200 bps
03: 38400 bps
01
Pr.90 Transmission Fault
Treatment
00: Warn and Continue Operating
01: Warn and RAMP to Stop
02: Warn and COAST to Stop
03: Keep Operation without Warning
03
Pr.91 Time Out Detection 0.0: Disable
0.1 to 120.0 sec 0.0
Pr.92 Communication
Protocol
00: MODBUS ASCII mode, <7,N,2>
01: MODBUS ASCII mode, <7,E,1>
02: MODBUS ASCII mode, <7,O,1>
03: MODBUS RTU mode, <8,N,2>
04: MODBUS RTU mode, <8,E,1>
05: MODBUS RTU mode, <8,O,1>
00
Pr.93 Accel 1 to Accel 2
Frequency Transition
0.01 to 400.0
0.00: Disable 0.00
Pr.94 Decel 1 to Decel 2
Frequency Transition
0.01 to 400.0
0.00: Disable 0.00
Pr.95 Auto Energy Saving 00: Disable auto energy saving
01: Enable auto energy saving 00
Pr.96 Counter Countdown
Complete 00 to 9999 00
Pr.97 Preset counter
countdown 00 to 9999 00
Pr.98 Total Time Count from
Power On (Days) 00 to 65535 days Read Only
Pr.99 Total Time Count from
Power On (Minutes) 00 to 1440 minutes Read Only
Pr.100 Software Version ##
Pr.101 Auto Adjustable
Accel/Decel
00: Linear Accel/Decel
01: Auto Accel, Linear Decel
02: Linear Accel, Auto Decel
03: Auto Accel/Decel
04: Linear Accel/Decel Stall Prevention
during Deceleration
00

English-16
Parameter Explanation Settings Factory
Setting Customer
Pr.102 Auto Voltage
Regulation (AVR)
00: AVR function enabled
01: AVR function disabled
02: AVR function disabled when stops
03: AVR function disabled when decel
00
Pr.103 Auto tune Motor
Parameters
00: Disable
01: Auto tune for R1
02: Auto tune for R1 + No Load testing
00
Pr.104 R1 value 00 to 65535 mΩ00
Pr.105 Control Mode 00: V/F Control
01: Sensor-less Control 00
Pr.106 Rated Slip 0.00 to 10.00 Hz 3.00
Pr.107 Vector Voltage Filter 5 to 9999 (per 2ms) 10
Pr.108 Vector Slip
Compensation Filter 25 to 9999 (per 2ms) 50
Pr.109 Selection for Zero
Speed Control
00: No output
01: Control by DC voltage 00
Pr.110 Voltage of Zero Speed
Control to 20.0 % of Max. output voltage (Pr.05) 5.0
Pr.111 Decel S-curve 00 to 07 00
Pr.112 External Terminal
Scanning Time 01 to 20 01
Pr.113 Restart Method after
Fault (oc, ov, BB)
00: None speed search
01: Continue operation after fault speed
search from speed reference
02: Continue operation after fault speed
search from Minimum speed
01
Pr.114 Cooling Fan Control
00: Fan Off when the drive stop after 1
Min.
01: AC Drive Runs and Fan On, AC Drive
Stops and Fan Off
02: Always Run
03: Reserved
02
Pr.115 PID Set Point Selection
00: Disable
01: Keypad (based on Pr.00 setting)
02: AVI (external 0-10V)
03: ACI (external 4-20mA)
04: PID set point (Pr.125)
00
Pr.116 PID Feedback Terminal
Selection
00: Input positive PID feedback, PV from
AVI (0 to 10V)
01: Input negative PID feedback, PV from
AVI (0 to 10V)
02: Input positive PID feedback, PV from
ACI (4 to 20mA)
03: Input negative PID feedback, PV from
ACI (4 to 20mA)
00
Pr.117 Proportional Gain (P) 0.0 to 10.0 1.0
Pr.118 Integral Time (I) 0.00: Disable
0.01 to 100.0 sec 1.00

English-17
Parameter Explanation Settings Factory
Setting Customer
Pr.119 Differential Time (D) 0.00 to 1.00 sec 0.00
Pr.120 Integration’s Upper
Bound Frequency 00 to 100 % 100 %
Pr.121 One-Time Delay 0.0 to 2.5 sec 0.0
Pr.122 PID Frequency Output
Command Limit 00 to 110 % 100
Pr.123 Feedback Signal
Detection Time
0.0: Disable
0.1 to 3600 sec 60.0
Pr.124 Feedback Signal Fault
Treatment
00: Warning and RAMP to stop
01: Warning and keep operating 00
Pr.125 Source of PID Set Point 0.00 to 400.0Hz 0.00
Pr.126 PID Offset Level 1.0 to 50.0 % 10.0
Pr.127 Detection Time of PID
Offset 0.1 to 300.0 sec 5.0
Pr.128 Minimum Reference
Value 0.0 to 10.0 V 0.0
Pr.129 Maximum Reference
Value 0.0 to 10.0 V 10.0
Pr.130 Invert Reference Signal
AVI (0-10V)
00: Not inverted
01: Inverted 00
Pr.131 Minimum Reference
Value (4-20mA) 0.0 to 20.0mA 4.0
Pr.132 Maximum Reference
Value (4-20mA) 0.0 to 20.0mA 20.0
Pr.133 Invert Reference Signal
(4-20mA)
00: Not inverted
01: Inverted 00
Pr.134 Analog Input Delay
Filter for Set Point 00 to 9999 (per 2ms) 50
Pr.135
Analog Input Delay
Filter for Feedback
Signal
00 to 9999 (per 2ms) 5
Pr.136 Sleep Period 0.0 to 6550.0 sec 0.0
Pr.137 Sleep Frequency 0.00 to 400.0 Hz 0.00
Pr.138 Wake Up Frequency 0.00 to 400.0 Hz 0.00
Pr.139 Treatment for Counter
Attained
00: Continue operation
01: Stop Immediately and display E.F. 00
Pr.140 External Up/Down
Selection
00: Fixed Mode (keypad)
01: By Accel or Decel Time
02: Reserved
00
Pr.141 Save Frequency Set
Point
00: Not Save
01: Save 01

English-18
Parameter Explanation Settings Factory
Setting Customer
Pr.142 Second Source of
Frequency Command
00: Keypad Up/Down
01: AVI (0-10V)
02: ACI (4-20mA)
03: Communication
04: Keypad potentiometer
00
115V/230V 370-450 Vdc 380.0
460V 740-900 Vdc 760.0
Pr.143 Software Braking Level
575V 925-1075 Vdc 950.0
Pr.144 Total operation time
(Day) Read Only
Pr.145 Total operation time
(Minutes) Read Only
Pr.146 Line start Lockout 00: Disable
01: Enable 00
Pr.147 Decimal Number of
Accel / Decel Time
00: One decimal
01: Two decimals 00
Pr.148 Number of Motor Poles 02 to 20 04
Pr.149 Gear Ratio for Simple
Index Function 4 to 1000 200
Pr.150 Index Angle for Simple
Index Function 00.0 to 360.0 180.0
Pr.151 Deceleration Time for
Simple Index Function 0.00 to 100.00 sec 0.00
Pr.152 Skip Frequency Width 0.00 to 400.0Hz 0.00
Pr.153 Bias Frequency Width 0.00 to 400.0Hz 0.00
Pr.154 Reserved
aPr.155
Compensation
Coefficient for Motor
Instability
0.0: Disable
0.1 to 5.0 (recommended setting d2.0) 0.0
aPr.156 Communication
Response Delay Time 0 to 200 (x500us) 0
aPr.157 Communication Mode
Selection
0: Delta ASCII
1: Modbus 1

English-19
Fault Codes
Fault
Name Fault Descriptions Corrective Actions
Over current
Abnormal increase
in current.
1. Check whether the motors horsepower corresponds to the
AC drive output power.
2. Check the wiring connections between the AC drive and
motor for possible short circuits.
3. Increase the Acceleration time (Pr.10, Pr.12).
4. Check for possible excessive loading conditions at the motor.
5. If there are any abnormal conditions when operating the AC
drive after short-circuit being removed, it should be sent back
to manufacturer.
Over voltage
The DC bus voltage
has exceeded its
maximum allowable
value.
1. Check whether the input voltage falls within the rated AC
drive input voltage.
2. Check for possible voltage transients.
3. Bus over-voltage may also be caused by motor regeneration.
Either increase the decel time or add an optional brake
resistor.
4. Check whether the required braking power is within the
specified limits.
Overheating
Heat sink
temperature too
high
1. Ensure that the ambient temperature falls within the specified
temperature range.
2. Make sure that the ventilation holes are not obstructed.
3. Remove any foreign objects from the heatsinks and check for
possible dirty heat sink fins.
4. Check the fan and clean it.
5. Provide enough spacing for adequate ventilation.
Low voltage
The AC motor drive
detects that the DC
bus voltage has
fallen below its
minimum value.
1. Check whether the input voltage falls within the AC motor
drive rated input voltage range.
2. Check whether the motor has sudden load.
3. Check for correct wiring of input power to R-S-T (for 3-phase
models) without phase loss.
Overload
The AC motor drive
detects excessive
drive output current.
1. Check whether the motor is overloaded.
2. Reduce torque compensation setting in Pr.54.
3. Take the next higher power AC motor drive model.
NOTE: The AC motor drive can withstand up to 150% of the
rated current for a maximum of 60 seconds.
Overload 1
Internal electronic
overload trip
1. Check for possible motor overload.
2. Check electronic thermal overload setting.
3. Use a higher power motor.
4. Reduce the current level so that the drive output current does
not exceed the value set by the Motor Rated Current Pr.52.
Overload 2
Motor overload.
1. Reduce the motor load.
2. Adjust the over-torque detection setting to an appropriate
setting.

English-20
Fault
Name Fault Descriptions Corrective Actions
Over-current
during
acceleration
1. Short-circuit at motor output: Check for possible poor
insulation at the output lines.
2. Torque boost too high: Decrease the torque compensation
setting in Pr.54.
3. Acceleration Time too short: Increase the Acceleration Time.
4. AC motor drive output power is too small: Replace the AC
motor drive with the next higher power model.
Over-current
during
deceleration
1. Short-circuit at motor output: Check for possible poor
insulation at the output line.
2. Deceleration Time too short: Increase the Deceleration Time.
3. AC motor drive output power is too small: Replace the AC
motor drive with the next higher power model.
Over-current
during steady state
operation
1. Short-circuit at motor output: Check for possible poor
insulation at the output line.
2. Sudden increase in motor loading: Check for possible motor
stall.
3. AC motor drive output power is too small: Replace the AC
motor drive with the next higher power model.
Internal EEPROM
can not be
programmed.
1. Turn off the power.
2. Check whether the input voltage falls within the rated AC
drive input voltage.
3. Turn on the power.
Internal EEPROM
can not be read.
1. Check the connections between the main control board and
the power board
2. Reset the drive to the factory settings.
External Fault
1. Input EF (N.O.) on external terminal is closed to GND. Output
U, V, W will be turned off.
2. Give RESET command after fault has been cleared.
Auto accel/decel
failure
1. Check if the motor is suitable for operation by AC motor
drive.
2. Check if the regenerative energy is too large.
3. Load may have changed suddenly.
Ground fault
When (one of) the output terminal(s) is grounded, short circuit
current is more than 50% of AC motor drive rated current, the AC
motor drive power module may be damaged.
NOTE: The short circuit protection is provided for AC motor
drive protection, not for protection of the user.
1. Check whether the IGBT power module is damaged.
2. Check for possible poor insulation at the output line.
Communication
error (see Pr.92)
1. Check the connection between the AC drive and computer
for loose wires.
2. Check if the communication protocol is properly set.
External Base
Block.
1. When the external input terminal (B.B) is active, the AC
motor drive output will be turned off.
2. Deactivate the external input terminal (B.B) to operate the AC
motor drive again.
OC hardware error Return to the factory.