Vicruns VD120 Series User manual

Preface
Thank you for purchasing VD120 Series Inverters!
Unpacking and Inspection:
Every inverter has been inspected rigorously before shipping.
Please confirm carefully when unpacking the packing carton:
● Check if any damage signs of the product and its package.
● Check if the model and inverter rated values on the nameplate are the same as stated on your order
and user manual.
● The box contains the inverter, manufacturer certificate, user manual.
If the product is damaged during transportation, or there is any omission or damage, please contact
our company or your local supplier immediately.

Contents
Chapter 1 Safety and Precautions .................................................... - 1 -
1.1 Safety Precautions .............................................................. - 1 -
Chapter 2 Product Information ....................................................... - 3 -
2.1 Designation Rules .............................................................. - 3 -
2.2 Nameplate..................................................................... - 3 -
2.3 Inverter Series ................................................................. - 3 -
2.4 Product Appearances and Installation Dimension .................................... - 4 -
2.5 Recommended Brake Resistor Selection Table ...................................... - 7 -
2.6 Warranty Introduction............................................................ - 7 -
Chapter 3 Mechanical and Electrical Installation ........................................ - 8 -
3.1 Standard Wiring Diagram ........................................................ - 8 -
3.2 Main Circuit Terminals ........................................................... - 8 -
3.3 Control Circuit Terminal .......................................................... - 9 -
Chapter 4 Operation and Display ....................................................- 12 -
4.1 Introduction to Operation and Display Interface.....................................- 12 -
Chapter 5 Function Parameter Table ................................................. - 14 -
Chapter 6 Parameter Description .................................................... - 64 -
F0 Basic Function.................................................................- 64 -
F1 Start/Stop Control Group ........................................................ - 71 -
F2 Motor 1 Parameter ............................................................. - 77 -
F3 Motor 1 Vector Control Parameter ................................................ - 79 -
F4 Motor 1 V/F Control Parameter ................................................... - 82 -
F5 Input Terminal Group ........................................................... - 86 -
F6 Output Terminal Function Group .................................................. - 98 -
F7 Keyboard and Display Function Group ........................................... - 103 -
F8 Protection Parameters ......................................................... - 107 -
F9 Fault Record and Setting Parameter Group ....................................... - 110 -
FA Process PID Parameter Group .................................................. - 114 -
Fb Enhance Function Group ....................................................... - 118 -
Fd MODBUS Communication Parameter Group ...................................... - 132 -
FF User Parameters Group........................................................ - 133 -
FP Factory Parameter Group ...................................................... - 135 -
A0 Motor 1 Torque Control Parameter Group ......................................... - 135 -
AI Optimize Control Parameter Group ............................................... - 138 -
b0 User Customize Function Code.................................................. - 141 -
b1 Virtual IO Parameter Group ..................................................... - 142 -
b2 AI Curve Setting Parameter Group ............................................... - 146 -
b3 AIAO Correction Parameter Group ............................................... - 148 -
U0 Basic Monitoring Parameters Group ............................................. - 149 -
Chapter 7 EMC Guide ............................................................ - 151 -
7.1 Definition .................................................................... - 151 -
7.2 EMC Standard Introduction..................................................... - 151 -
7.3 EMC Guide .................................................................. - 151 -
Chapter 8 Fault Shooting and Solutions ............................................. - 153 -
8.1 Fault Alarm and Countermeasures .............................................. - 153 -
8.2 Common Faults and Solutions .................................................. - 157 -

Chapter 9 Communication Protocol ................................................. - 158 -
9.1 About Protocol ............................................................... - 158 -
9.2 Application Methods........................................................... - 158 -
9.3 Bus Structure ................................................................ - 158 -
9.4 Protocol Description........................................................... - 158 -
9.5 Communication Frame Structure ................................................ - 158 -
9.6 Command Code and Communication Data Description ............................. - 159 -
Fd MODBUS Communication ...................................................... - 167 -

VD120 Series Inverter User Manual
Safety and Precautions
- 1 -
Chapter 1 Safety and Precautions
1.1 Safety Precautions
1.1.1 At Wiring
● Wiring must be performed only by qualified personnel under instructions described in this
manual. Failure to comply may result in unexpected accidents.
● A circuit breaker must be used to isolate the power supply and inverter. Failure to comply may
result in a fire.
● Ensure that the power supply is cut off before wiring. Failure to comply may result in electric
shock.
● Connect inverter to ground properly by standard. Failure to comply may result in electric shock.
● Do not connect the input power with output terminals U, V, W, confirm the mark on terminal
before connection to avoid wrong wiring. Failure to comply can damage the inverter!
● Never connect the braking resistor between the DC bus terminals P+ and P-. Failure to comply
may result in a fire.
● The wire size of main circuit should conformed to standard, the wiring should comply with EMC
and local safety standard. Failure to comply may result in accidents.
● Use shielded cable for input output control circuit of analog and rapid speed pulse signal, and
ensure the shielding layer is reliably grounded.
1.1.2 Before Power-on:
● Check that the following requirements are met:
● The voltage class of the power supply is consistent with the rated voltage class of the AC drive.
● The input terminals (R, S, T) and output terminals (U, V, W) are properly connected.
● No short-circuit exists in the peripheral circuit.
● The wiring is secured.
● The external units of inverter and wires are configured under the manual instructed, all matched
circuit and wiring are correctly connected.
● Failure to comply will result in damage to inverter!
1.1.3 After Power-on
● Do not open the cover after inverter power-on to prevent electric shock.
● Do not touch or operate the inverter with wet hands. Failure to comply will result in electric shock.
● Do not touch any terminal of inverter after power-on, or drag connection cable. Failure to comply
will result in equipment damage or electric shock.
● Do not try to check or change the manufacturer parameter. Failure to comply may result in
malfunction or damage to inverter!
● Make sure the mechanical equipment is ready to start before inverter run with loading, make sure
related staff is in safety zone. Failure to comply will result in damage or personal hurt!
● Please pay attention to hiding accident which may result in personal hurt or property damage
while motor is run, if it is necessary to identify the motor parameter.

Safety and Precautions VD120 Series Inverter User Manual
- 2 -
1.1.4 During Operation
● Do not touch the cooling fan or braking resistor etc, otherwise may cause personal injury!
● Do not do inspection while inverter run, except for professional technician, otherwise may cause
inverter damaged or personal injury.
● Do not move inverter or the installed cabinet while it is run, keep external objects falling into the
device. Failure to comply will result in damage.
● Start/Stop inverter via terminal function or other control method, try not to start inverter via directly
power-on control method. Do not use contactor on inverter output terminal to control motor starting
or stop.
1.1.5 During Maintenance
● Do not repair and maintain the equipment if power is connected. Otherwise there will be danger
of electric shock!
● If the LED is still on light on control panel, it is Disabled to disassemble the body in order to avoid
electric shock.
● The inverter shall be repaired and maintained only by the qualified person who has received
professional training. Otherwise, it may cause personal injury or equipment damage.
● For all the standard equipped or optional accessories, must be dismounted or mounted while the
inverter power is disconnected.

VD120 Series Inverter User Manual Product Information
- 3 -
Chapter 2 Product Information
2.1 Designation Rules
Fig 2.1-1 Designation Rules
2.2 Nameplate
Fig 2.2-1 Namepate
● The bar code on inverter nameplate is the only code to recognize its identity, so the bar code is
the most important basis for the after sales service.
2.3 Inverter Series
Table 2-1 Product specifications and technical data
Adaptable Motor
Model No.
Power
Capacity
(KVA)
Rated Input
Current
(A)
Rated Output
Current
(A) (
KW)
(HP)
Single-phase power supply: 220V,50/60Hz Range:-15%~20%
VD120-2S-0.4GB 1.0 5.4 2.3 0.4 0.5
VD120-2S-0.7GB 2.0 9.8 4.8 0.7 1
VD120-2S-1.5GB 3.0 14.0 7.0 1.5 2
VD120-2S-2.2GB 4.0 23.0 9.6 2.2 3

Product Information VD120 Series Inverter User Manual
- 4 -
Adaptable Motor
Model No.
Power
Capacity
(KVA)
Rated Input
Current
(A)
Rated Output
Current
(A) (
KW)
(HP)
Three-phase power supply: 220V,50/60Hz Range: -15%~20%
VD120-2T-0.4GB 1.5 4.0 2.3 0.4 0.5
VD120-2T-0.7GB 3.0 6.0 4.8 0.8 1
VD120-2T-1.5GB 4.0 5.8 7.0 1.5 2
VD120-2T-2.2GB 5.9 10.5 9.6 2.2 3
VD120-2T-4.0GB 8.9 14.6 13.0 3.7 5
Three-phase power supply: 380V,50/60Hz Range: -15%~20%
VD120-4T-0.4GB 1.0 1.9 1.5 0.4 0.5
VD120-4T-0.7GB 1.5 4.0 2.5 0.8 1
VD120-4T-1.1GB 2.0 4.5 3.3 1.1 1.4
VD120-4T-1.5GB 3.0 5.0 3.8 1.5 2
VD120-4T-2.2GB 4.0 5.8 5.1 2.2 3
VD120-4T-3.0GB 5.5 9.2 8.0 3.0 4
VD120-4T-4.0GB 6.5 11.0 9.6 4.0 5.5
VD120-4T-5.5GB 8.9 14.6 13.0 5.5 7.5
VD120-4T-7.5GB 11.0 20.5 17.0 7.5 10
2.4 Product Appearances and Installation Dimension
H
W D
A
B
Adaptive mode (wall mounting type, three phase 380V: 0.4kW-2.2kW /Single phase, three phase
220V: 0.4kW-1.5kW)

VD120 Series Inverter User Manual Product Information
- 5 -
A
W
H
B
D
Adaptive mode(wall mounting type, three phase 380V: 3kW-7.5kW/three phase 220V:
2.2kW~4.0kW/single phase 220V:2.2kW)
Fig 2.4-1 Schematic diagram of product appearance and installation dimensions
76.4
74
17.4 20.6
Schematic diagram of keyboard size
Schematic diagram of tray size
Fig 2.4-2 External lead keyboard and tray size (mm)

Product Information VD120 Series Inverter User Manual
- 6 -
Keyboard mounting hole size Keyboard mounting hole size
when without external lead when without external lead
Table 2-2 Physical Dimensions and Installation Hole(mm)
Mounting
Hole (mm)
Physical Dimensions
(mm)
Model
A B H W D
Dieameter of
Mounting
Hole (mm)
Weight
(kg)
Single phase: 220V, 50/60Hz Range: -15%~20%
VD120-2S-0.4GB
VD120-2S-0.7GB
VD120-2S-1.5GB
73 141 155 84 130 4.5 1.4
VD120-2S-2.2GB 107.6 201 215 120 146 4.5 2.4
Three phase: 220V, 50/60Hz Range: -15%~20%
VD120-2T-0.4GB
VD120-2T-0.7GB
VD120-2T-1.5GB
73 141 155 84 130 4.5 1.4
VD120-2T-2.2GB
VD120-2T-4.0GB
107.6 201 215 120 146 4.5 2.4
Three phase: 380V, 50/60Hz Range:-15%~20%
VD120-4T-0.4GB
VD120-4T-0.7GB
VD120-4T-1.1GB
VD120-4T-1.5GB
VD120-4T-2.2GB
73 141 155 84 130 4.5 1.4
VD120-4T-3.0GB
VD120-4T-4.0GB
VD120-4T-5.5GB
VD120-4T-7.5GB
107.6 201 215 120 146 4.5 2.4

VD120 Series Inverter User Manual Product Information
- 7 -
2.5 Recommended Brake Resistor Selection Table
Table 2-3 Recommended brake resistor selection table
2.6 Warranty Introduction
For inverter manufactured by our factory, since the date of manufacture, under normal condition
application, if inverter failed or damaged within warranty period, the manufacturer response for repair.
If inverter is without in warranty period, user response for reasonable repair charge.
● Free warranty only refers to the frequency converter
● Please keep the machine outer packing boxes and other packaging materials, to facilitate future
inverter relocation or repair and other logistics transportation
2.6.1 In the warranty period, the following reasons lead to the failure of the inverter and
damage, the user must bear part of the maintenance costs.
① The machine failure caused by the user does not use the user manual or beyond the standard
specifications range use;
② The machine failure caused by the user repair and modify;
③ The machine failure caused by the user custody, maintenance improper.
④ Damage caused when the inverter is used for abnormal function;
⑤ The machine failure due to fires, floods, salt corrosion, corrosive gases, earthquake, storm,
lightning, abnormal voltage or other non resistance caused by damage to the machine.
2.6.2 Relevant service charges will be calculated in accordance with the manufacturer's
unified standard, if there is a contract, it is handled according to the relevant provisions of the
contract.
Single phase, 220V Three phase, 380V
Model Resistor Power Model Resistor Power
VD120-2S-0.4GB ≥200Ω 80W VD120-4T-0.4GB ≥300Ω 150W
VD120-2S-0.7GB ≥150Ω 80W VD120-4T-0.7GB ≥300Ω 150W
VD120-2S-1.5GB ≥100Ω 100W VD120-4T-1.1GB ≥250Ω 150W
VD120-2S-2.2GB ≥70Ω 100W VD120-4T-1.5GB ≥220Ω 150W
Three phase, 220V VD120-4T-2.2GB 200Ω 300W
Model Resistor Power VD120-4T-3.0GB ≥150Ω 300W
VD120-2T-0.4GB ≥150Ω 150W VD120-4T-4.0GB ≥130Ω 300W
VD120-2T-0.7GB ≥110Ω 150W VD120-4T-5.5GB ≥90Ω 400W
VD120-2T-1.5GB ≥100Ω 250W VD120-4T-7.5GB ≥65Ω 500W
VD120-2T-2.2GB ≥65Ω 300W - - -
VD120-2T-4.0GB ≥45Ω 400W - - -

Mechanical and Electrical Installation VD120 Series Inverter User Manual
- 8 -
Chapter 3 Mechanical and Electrical Installation
3.1 Standard Wiring Diagram
L1/R
L2/S
L3/T
P+
T
R/L
S/N
PB U
W
V
Brake unit
M
QF
DI4
T/B
DI1
DI2
DI3
DI5
GND
AO1
GND
PE
T/C
10V
AI1
RS-485+
T/A
VR:1K~10K AI
V A
RS- 485-
DO1
DO1 output
RS- 485
+24V
AO
V A
485
R
Input power
FWD/Stop
REV/Stop
Jog
Coast to stop
Fault reset
DI terminal
AI terminal
Comunication port
Relay T output
Fig 3.1-1 Schematic diagram of inverter standard wiring
Precautions are as follows:
1) Terminal ◎refers to Main circuit terminal, terminal ○ refers to control circuit terminal;
2) B which is followed the product model represents standard models built-in brake unit;
3) Braking resistor’s selection is based on the user demand. refer to Table 2-4;
4) Signal lines and power line must be separated alignments, if you want to control cables and power
cable cross, let them cross by 90 degree angle. It is best to choose shielded twisted-pair cabling for
analogue signal, the selection of power cable is shield three-core cable(The specification should
enlarge a class as much as the ordinary electric cables), or follow the inverter user manual.
3.2 Main Circuit Terminals
Three phase 380V: 0.4kW-2.2kW/Three phase, Signal phase 220V: 0.4kW-1.5kW

VD120 Series Inverter User Manual Mechanical and Electrical Installation
- 9 -
Three phase 380V: 3kW-7.5kW/Three phase 220V: 2.2kW~4.0kW/Signal phase 220V: 2.2kW
Fig 3.2-1 Schematic diagram of main circuit wiring
3.2.1 Function Instruction of Main Circuit Terminals
Table 3-1 Function Instruction of main circuit terminals
Terminals Function Instruction
R/L, S/N, T Power input terminals, external the ac power of grid rated voltage
U, V, W Output terminal of 3phase power supply, external connection of AC 3phase motor
P+, PB External connection of braking resistor terminal
P+, P- Voltage positive and negative terminals on DC side
Grounding terminal
● The voltage class of VD120 series inverter 3phase power has two grades: 220V, 380V, before
connecting power, please make sure the power class on inverter nameplate is the same with the
accessing power. Otherwise do not connect.
3.3 Control Circuit Terminal
3.3.1 Schematic diagram of control board layout
Fig 3.3-1 Schematic diagram of control board layout

Mechanical and Electrical Installation VD120 Series Inverter User Manual
- 10 -
3.3.2 Function Description of Control Circuit Terminal
Table 3-1 Function description of control circuit terminal
Type Terminal
Sign
Terminal
Name Function
10V-GND 10V power
supply
1. Provide 10V power supply for
external-units.
2. It is generally used as the external
potentiometer power. The potentiometer
resistance range is 1kΩ~10KΩ.
3. Maximum output current 10mA.
Power Supply
+24V-GND
24V power
supply
4. Provide +24V power supply for external
units, only used as the working power
supply of digital output terminals.
5. The maximum output current 100mA.
6. Don’t use this power as an external
power supply.
Communication 485+-485-
RS-485
communicati
on terminals
Standard RS-485 communication terminal,
should use twisted pair cable
Analog Input AI1-GND Analog input
terminal 1
Support 0V~10V voltage or 0/4Ma~20mA
current input, selected by AI jumpers, default
to 0V~10V voltage input.
DI1-GND Digital input
terminal 1
DI2-GND Digital input
terminal 2
DI3-GND Digital input
terminal 3
DI4-GND Digital input
terminal 4
Digital Input
DI5-GND Digital input
terminal 5
Multi-function digital input, the function set by
F5-01~F5-05.
Analog Output AO1-GND
Analog
output
terminal 1
Support 0V~10V voltage or 0/4mA~20mA
current output, selected by jumper J3, default
to 0V~10V voltage output
Digital Output DO1 Digital output
1
1. Optical coupling isolation, dual polarity
open collector output;
2. Pull-up voltage range: 5V~24V(pull-up
resistance range: 0.48kΩ~10kΩ);
3. Output current range: 2mA~50mA.

VD120 Series Inverter User Manual Mechanical and Electrical Installation
- 11 -
T1/A-T1/B
Relay T1
normally
closed
terminal
Relay Output
T1/A-T1/C
Relay T1
normally
open
terminal
Contact driving capacity:
AC250V, 3A; DC30V, 5A
Shield Ground PE
Shield cable
ground
terminal
1. Used to control cable shield grounding,
when the interference is big on site or
control cable is too long, the PE should
be well grounded to reduce EMC affect.
2. PE terminal is not allowed to connect with
power N line, otherwise will damaged the
inverter.

Operation and Display VD120 Series Inverter User Manual
- 12 -
Chapter 4 Operation and Display
4.1 Introduction to Operation and Display Interface
With the operation panel, it can perform such operations on the inverter as function parameter
modification, inverter working status monitoring and inverter run control (startup and stop).
Refer to Fig 4-1 for the physical appearance and functional zone of the operation panel:
Hz A
L/R
FWD/REVRUN V
-+
LED DIGITAL PANEL
JOG
REV
MENU
ESC
ENTER
DATA
STOP
RESET
RUN
Fig 4.1-1 Operation panel schematic
4.1.1 Keyboard Button Description
Buttons Name Function Description
Programming key Enter or escape from the first level menu and remove the
parameters quickly
Enter key Enter the menu step-by-step
Confirm parameters
UP key Increase data or function code progressively
DOWN key Decrease data or function code progressively
Right-shift key
Move right to select the displaying parameters circularly in
stopping and running mode.
Select the parameters modifying digit during the parameter
modification

VD120 Series Inverter User Manual Operation and Display
- 13 -
Run key This key is used to operate on the inverter in key operation
mode
Stop/Reset key This key is used to stop in running state and it is limited by
function code F7-01
Quick key The function of this key is confirmed by function code FA-01
4.1.2 Description of Function LED Indictor
Name Description
RUN When it is off, it indicates the inverter is in stop status; when it is on, it indicates
the rotation status; light flashes that inverter in automatic running.
FWD/REV
It is the LED indictor for forward/reverse rotation. When it is on, it indicates the
inverter is in forward rotation status; when it is off, it indicates the inverter is in
reverse rotation
L/R
When it’s off, it indicates the keypad operation control status; when it’s on, it
indicates the terminal operation control status; when it’s flicker, it indicates the
remote operation control status
Hz The unit of frequency(Hz)
A The unit of current(A)
V The unit of voltage(V)
RPM The unit of rotation speed(RPM)
% Unit:%

Function Parameter Table VD120 Series Inverter User Manual
- 14 -
Chapter 5 Function Parameter Table
The symbols in the function table are described as follows:
○——It indicates that the parameter setup value can be modified when the inverter is in run state;
◎——It indicates that the parameter setup value cannot be modified when the inverter is in the run
state;
●——It indicates that the numerical value of the parameter is the actually measured value, which
cannot be modified;
☆——It indicates this parameter is “Factory default parameter” and can be set only by the
manufacturer.
F0 Basic Parameter Group
Function
Code
Parameter
Name Setting Range Factory Default Value
Property
F0-00 Motor Control
Mode
0: V/F control
1: SVC 0 ◎
F0-01
Running
Command
Source
Selection
0: Control panel command source
(L/R OFF)
1: Terminal command source
(L/R ON)
2:Communication command
source (L/R flashes)
0 ○
F0-02
Main Frequency
Source A
Selection
0: Digital setting (F0-09,
UP/DOWN can be modified, no
memory when power failure)
1: Digital setting (F0-09,
UP/DOWN can be modified,
memory when power failure)
2: AI1
3: Reserved
4: Reserved
5: PULSE setting
6: MS reference
7: Simple PLC
8: PID
9: Communication setting
10: Keypad potentiometer
10 ◎
F0-03 Main Frequency
A Gain 0.000~10.000 1.000 ○
F0-04
Auxiliary
Frequency
Source B
Selection
Same as F0-02 (Main Frequency
Source A Selection) 0 ◎

VD120 Series Inverter User Manual Function Parameter Table
- 15 -
F0-05
Frequency
Source
Superposition
Selection
Unit’s digit: frequency source
selection
0: Main frequency source A
1: Main auxiliary operation result
(operational relationship is
determined by ten bits)
2: Main frequency source A switching
with auxiliary frequency source B
3: Main frequency source A switching
with main and auxiliary operation
result
Ten’s digit: frequency source main
and auxiliary operation relationship
0: Main + auxiliary
1: Main – auxiliary
2: Max value of the two
3: Min value of the two
0x00 ○
F0-06
Auxiliary
Frequency
Source B
Range
Reference
Selection when
Superimposed
1: Relative to the max frequency
2: Relative to frequency source A 0 ○
F0-07
Auxiliary
Frequency
Source B
Range when
Superimposed
0%~150% 100% ○
F0-08
Auxiliary
Frequency
Source B
Offset
Frequency
when
Superimposed
0.00Hz~max frequency F0-10 0.00Hz ○
F0-09 Digital Setting
Frequency 0.00Hz~max frequency (F0-10) 50.00Hz ○
F0-10 Max Frequency 50.00Hz~600.00Hz 50.00Hz ◎
F0-11
Frequency
Upper Limit
Source
0: F0-12 setting
1: AI1
2: Reserved
3: Reserved
4: PULSE setting
5: Communication setting
0 ◎
F0-12 Frequency
Upper Limit
Frequency lower limit F0-14~max
frequency F0-10 50.00Hz ○

Function Parameter Table VD120 Series Inverter User Manual
- 16 -
F0-13
Frequency
Upper Limit
Offset
0.00Hz~max frequency F0-10 0.00Hz ○
F0-14 Frequency
Lower Limit 0.00Hz~frequency upper limit F0-12 0.00Hz ○
F0-15
Frequency
Command
Resolution
2: 0.01Hz 2 ●
F0-16
Frequency
Command
UP/DOWN
Reference in
Running
0: Running frequency
1: Set frequency 0 ◎
F0-17
Digital Setting
Frequency
Memory
Selection when
Stop
0: No memory
1: Memory 0 ○
F0-18 Acceleration
Time 1 0.00s~65000s Model dependent ○
F0-19 Deceleration
Time 1 0.00s~65000s Model dependent ○
F0-20
Acceleration /
Deceleration
Time Unit
0: 1s
1: 0.1s
2: 0.01s
1 ◎
F0-21
Acceleration
and
Deceleration
Time
Reference
Frequency
0: Max frequency (F0-10)
1: Setting frequency
2: 100Hz
0 ◎
F0-22
Command
Source Bound
Frequency
Source
Unit’s digit: Operation panel
command binding frequency source
selection
0: No binding
1: Digital setting frequency
2: AI1
3: Reserved
4: Reserved
5: PULSE setting
6: MS reference
7: Simple PLC
8: PID
9: Communication setting
Ten’s digit: terminal command
binding frequency source selection
Hundred’s digit: communication
0x0000 ○