Vicruns VD520 Series User manual

Preface
Thank you for purchasing VD520 Series Inverters!
VD520 is a high-performance vector control inverter developed by VicRuns. Adopting advanced
vector control algorithm, it is widely used for asynchronous motor speed control. Through its
integrated EMC design and with optimized PWM control technique to meet users’ demand on
environmental requirement such as low-noise in application places and low EMI. It has perfect
anti-tripping control and good adaptive ability to bad power grid, temperature, humidity and dust, in
order to satisfy various sophisticated requirement under high precision drive applications, thus to
satisfy users expectation of higher reliability and stronger adaptability to environment of their
equipment, achieving industry specialization and personalized motor drive and control system
solution.
VD520 series high performance vector control inverter has following outstanding features:
1. Various control method
Supporting control method: SVC, V/F control.
2. Leading vector control algorithm
Optimized sensorless vector control has better low speed stability, stronger low frequency load
capacity, supporting speed control and torque control.
3. Support multi-function I/O extension and multi-function MFI extension port
Multi-function I/O extension card, multi-function MFI extension port can connect related extension
function unit defined by manufacturer.
This manual provides the related issues: user installing and site wiring, quick debug, parameters
setting, failure diagnose and eliminate and daily maintenance and correlation matters. Please read
this manual to make sure you can install, use and maintain the inverter correctly, then play their
superior performance.
Please send this manual to the user or maintainer of this inverter, and properly kept.
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.
First time use suggests:
The users who use this product for the first time shall read this manual carefully. For any doubt on
certain functions and performances, please contact the technical support personnel of our company
for help, so as to use this product properly. With commitment to the constant improvement of the
inverter products, our company may change the information provided without additional notice.
VD520 series inverter is confirmed to below international standard, has passed the CE certification.
IEC/EN 61800-5-1: 2003 adjustable speed electric drive system safety regulation requirements;
IEC/EN 61800-3: 2004 adjustable speed electric drive system: part 3: product EMC standard and its
specific test method;
IEC/EN61000-2-1, 2-2, 3-2, 3-3, 4-2, 4-3, 4-4, 4-5, 4-6; EMC international and EU standard .

Contents
Chapter 1 Safety and Precautions............................................................................................................- 1 -
1.1 Safety Definition...................................................................................................................................- 1 -
1.2 Safety Precautions...............................................................................................................................- 1 -
1.3 General Precautions............................................................................................................................- 3 -
Chapter 2 Product Information..................................................................................................................- 6 -
2.1 Designation Rules................................................................................................................................ - 6 -
2.2 Nameplate.............................................................................................................................................- 6 -
2.3 Inverter Series ...................................................................................................................................... - 6 -
2.4 Product Specifications .........................................................................................................................- 8 -
2.5 PhysicalAppearance and Main Structure Diagram........................................................................- 10 -
2.6 ProductAppearance and Installation Dimension............................................................................ - 11 -
2.7 Physical Dimensions of External Keyboard....................................................................................- 13 -
2.8 Braking Unit Model Selection Guide................................................................................................- 14 -
2.9 Routine Repair and Maintenance of Inverter.................................................................................. - 16 -
2.10 Warranty Introduction ......................................................................................................................- 17 -
Chapter 3 Mechanical and Electrical Installation..................................................................................- 18 -
3.1 Installation Environment....................................................................................................................- 18 -
3.2 The Installation Direction and Space............................................................................................... - 18 -
3.3 Removing and Mounting the Cover Plate and Keyboard..............................................................- 19 -
3.4 Inverter and External Electrical Parts Connection.......................................................................... - 20 -
3.5 Standard Wiring Diagram..................................................................................................................- 25 -
3.6 Main Circuit Terminals .......................................................................................................................- 27 -
3.7 Control Circuit Terminal..................................................................................................................... - 30 -
Chapter 4 Operation and Display........................................................................................................... - 38 -
4.1 Introduction to Operation and Display Interface.............................................................................- 38 -
4.2 Motor Parameter Self-learning.......................................................................................................... - 40 -
4.3 Password Setting ............................................................................................................................... - 41 -
4.4 Parameter Lock (authority lower than password)...........................................................................- 41 -
Chapter 5 Function Parameter Table .....................................................................................................- 42 -
Chapter 6 Parameter Description........................................................................................................... - 97 -
F0 Basic Function..................................................................................................................................... - 97 -
F1 Start/Stop Control Group.................................................................................................................. - 105 -
F2 Motor 1 Parameter............................................................................................................................ - 112 -
F3 Motor 1 Vector Control Parameter.................................................................................................. - 114 -
F4 Motor 1 V/F Control Parameter....................................................................................................... - 117 -
F5 Input Terminal Group........................................................................................................................ - 121 -
F6 Output Terminal Function Group.....................................................................................................- 131 -
F7 Keyboard and Display Function Group .......................................................................................... - 136 -
F8 Protection Parameters......................................................................................................................- 140 -
F9 Fault Record and Setting Parameter Group..................................................................................- 144 -
FA Process PID Parameter Group........................................................................................................ - 148 -
Fb Enhance Function Group.................................................................................................................- 153 -
Fd MODBUS Communication Parameter Group................................................................................- 169 -
FF User Parameters Group...................................................................................................................- 170 -
FP Factory Parameter Group................................................................................................................ - 172 -
A0 Motor 1 Torque Control Parameter Group .....................................................................................- 173 -
AI Optimize Control Parameter Group.................................................................................................- 176 -
A2, 3, 4 Motor 2 Parameter Function Group....................................................................................... - 178 -
b0 User Customize Function Code.......................................................................................................- 179 -
b1 Virtual IO Parameter Group .............................................................................................................- 180 -
b2 AI Curve Setting Parameter Group................................................................................................. - 184 -
b3 AIAO Correction Parameter Group .................................................................................................- 186 -
U0 Basic Monitoring Parameters Group.............................................................................................. - 188 -

Chapter 7 EMC Guide............................................................................................................................- 190 -
7.1 Definition............................................................................................................................................ - 190 -
7.2 EMC Standard Introduction............................................................................................................. - 190 -
7.3 EMC Guide........................................................................................................................................ - 190 -
Chapter 8 Fault Shooting and Solutions..............................................................................................- 192 -
8.1 Fault Alarm and Countermeasures................................................................................................ - 192 -
8.2 Common Faults and Solutions........................................................................................................- 196 -
Chapter 9 Communication Protocol......................................................................................................- 197 -
9.1 About Protocol..................................................................................................................................- 197 -
9.2 Application Methods.........................................................................................................................- 197 -
9.3 Bus Structure.................................................................................................................................... - 197 -
9.4 Protocol Description.........................................................................................................................- 197 -
9.5 Communication Frame Structure.................................................................................................... - 197 -
9.6 Command Code and Communication Data Description.............................................................. - 198 -
Fd MODBUS Communication............................................................................................................... - 205 -

VD520 Series Inverter User Manual Safety and Precautions
- 1 -
Chapter 1 Safety and Precautions
1.1 Safety Definition
During the installation, commissioning and maintenance of the system, please make sure to follow
the safety and precautions of this chapter. In case of a result of illegal operations, caused any harm
and losses is nothing to do with the manufacturer. In this manual, safety precautions are divided to
two types below:
DANGER
!
● Danger arising due to improper operations may cause severe hurt or even death and major
property damage.
WARNING
!
● Danger arising due to improper operations may cause moderate damage or light hurt, and
equipment damage or property damage.
1.2 Safety Precautions
1.2.1 Before Installation
DANGER
!
● Do not install the equipment if you find water seepage, component missing or damage upon
unpacking.
● Do not install the equipment if the packing list does not conform to the product you received
DANGER
!
● Handle the equipment with care during transportation to prevent damage.
● Do not touch the components with your hands. Failure to comply will result in static electricity
damage.
1.2.2 During Installation
DANGER
!
● Install the equipment on incombustible objects such as metal, and keep it away from combustible
materials. Failure to comply may result in a fire.
● Install the equipment according to regulations and tighten the fastening bolts. Failure to comply
may result in equipment falling.
● Do not loosen the fixed screws of the components, especially the screws with red mark.
WARNING
!
● Do not drop conductive objects as wire ends or screw into inverter. Failure to comply will result in
damages.
● Install inverter in place avoid to vibration, water drops and direct sunlight.

Safety and Precautions VD520 Series Inverter User Manual
- 2 -
● When two inverters are installed in the same cabinet, arrange the installation positions properly to
ensure normal cooling effect, keep the cabinet with good ventilation.
1.2.3 At Wiring
DANGER
!
● 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.
1.2.4 Before Power-on:
DANGER
!
● 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!
1.2.5 After Power-on
DANGER
!
● 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.

VD520 Series Inverter User Manual Safety and Precautions
- 3 -
1.2.6 During Operation
DANGER
!
● 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.
WARNING
!
● 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.
1.2.7 During Maintenance
DANGER
!
● 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.
1.3 General Precautions
1.3.1 Motor Insulation Inspection
For first time usage, motor is left unused for long time or periodically inspected, insulation inspection
must be done to avoid motor coils insulation failure which may result in inverter damage. Disconnect
motor and inverter before inspection, 500V voltage type Meg-ohmmeter is recommended. It is up to
standard if insulation resist value no less than 5MΩ.
1.3.2 Motor Overheat Protection
If selected motor and inverter rated capacity doesn’t match, especially the inverter rated power larger
than motor rated power, it is necessary to adjust the motor protect parameter of inverter into actual
used motor parameter. Or a thermal relay can be installed to motor to protect motor.
1.3.3 Run with Power Frequency (under or above)
This inverter can provide 0.00Hz~650.00Hz output frequency, so motor is run at low frequency on
long time. Take care of motor cooling or frequency converted motor could be a choice. When motor
run with over-limit rate frequency, consider the bearing capacity of mechanic system with high speed,
to avoid the shortening of lifespan of equipment.
1.3.4 Vibration and Resonance of Mechanic System
Since inherent property of mechanic system, inverter could have mechanic system resonance point
while accelerating or decelerating, by setting inverter jump frequency can avoid mechanic system
resonance point. If customer required run frequency is happened to be the same with mechanic
resonance frequency, it is necessary to change run frequency or change the inherent resonance
frequency of mechanic system.

Safety and Precautions VD520 Series Inverter User Manual
- 4 -
1.3.5 Regarding Motor Heating and Noise
Inverter output voltage is PWM wave, with some higher harmonic, so motor temperature rising, noise
and vibration should increase a little comparing with power frequency, which is normal.
1.3.6 Pressure Sensing Device on Output Side or Improve Power Factor Capacitor
Inverter output voltage is PWM wave, if output side installed capacitor to improve power factor or
pressure sensing device to anti-thunder, it could easily result in instant over current or damage to
inverter. Disassemble such devices before inverter installation.
1.3.7 Switchover Device as Contactor Installed on Inverter Input Output Side
If there is a contactor between power supply and inverter input terminal, it is Disabled to use it to
start/stop inverter. When it is very necessary to use the contactor to start/stop inverter, the action
interval time should not less than 1hr. Since frequent charge/discharge could easily shorten the
lifespan of electrolytic capacitor inside inverter. If there is a contactor between motor and inverter
output terminal, make sure if motor is static and inverter is without output, then switchover the
contactor, failure to comply may damage the inverter.
1.3.8 Applications with Non-rated Voltage
The application voltage range used on inverter should not exceed the regulated voltage on this
manual, low voltage or higher voltage can easily damage inverter.
If power is not Enable, then use voltage reduction or voltage rising device to deal with voltage
conversion in order to comply with inverter input voltage requirement.
1.3.9 Three-phase Input Change to Two Phase Input
If inverter is 3phase input type, do not use 2phase power supply, otherwise it could result in phase
loss protection error even inverter damage.
1.3.10 Lightening Surge Protection
Although there is lightening overvoltage overcurrent device inside inverter, which has certain
self-protection function for lightening induction. But for user located in lightening frequent zones, it is
necessary to add lightening protection unit in front of inverter, this does good to extend inverter
lifespan.
1.3.11 Altitude Level and Voltage Reduction Usage
Place with altitude exceeding 2000M, inverter cooling effect get worse due to air condense reduced,
so under-rated usage of inverter is necessary.
1.3.12 Common DC Bus Introduction
In condition of several units of inverter run at the same time, then common DC bus can be adopted to
save electricity. This type of inverter support common DC bus, but make sure the power specification
of those inverters are very close in advance, otherwise it could damage inverter.
1.3.13 Precaution of Inverter Abandonment
Inverter belongs to electric electronic device, burning disposal will result lots of harmful gas even
exploding. Please refer to related national laws and regulations to dispose or abandon.
1.3.14 Regarding Adaptable Motor
①this type inverter standard matching motor is quaternary squirrel-cage asynchronous induction
motor or permanent magnet synchronous motor. When the dragging motor is not above type, please
refer to motor rated current to select the suitable inverter.
②the cooling fan of general motor and rotor spindle are coaxial connected. While motor rotating
speed reducing resulted cooling fan Deceleration proportionally and so making heat dissipation worse.
As a conclusion, if motor run at low frequency stage for long time, it is necessary to add a strong
exhaust fan or change the motor to variable frequency motor.
③Inverter default setup has built-in standard parameter for its adaptive motor, but in actual
application, it is necessary to identify motor parameter or change its original default setup of motor
parameter. Otherwise it affect operation efficiency and protection performance to motor.
④Due to cable or motor internal short circuit can result in inverter alarm or even exploding. So
insulation and short circuit test on wiring and motor should be done before connecting and installing
motor. If the system has been idled for long time, then a retest should be done to avoid system

VD520 Series Inverter User Manual Safety and Precautions
- 5 -
damage or performance reduce.

Product Information VD520 Series Inverter User Manual
- 6 -
Chapter 2 Product Information
2.1 Designation Rules
VD520-4T-11GB/15PB
Vicruns series
Adaptable moter power
G type 11kW moter
P type 15kW moter
Brake unit
B: Including brake unit
None
2S 220V
2T 220V
4T 380V
Voltage level
Fig 2.1-1 Designation Rules
2.2 Nameplate
Fig 2.2-1 Namepate
WARNING
!
● 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
Model No.
Power
Capacity
(kVA)
Rated
Input
Current
(A)
Rated
Output
Current
(A)
Adaptable Motor
kW
HP
Single-phase Power supply: 220V, 50/60Hz
VD520-2S-0.7GB
1.5
8.2
4.0
0.75
1
VD520-2S-1.5GB
3.0
14.0
7.0
1.5
2
VD520-2S-2.2GB
4.0
23.0
9.6
2.2
3
VD520-2S-3.7GB
5.9
35.0
17.0
3.7
5
VD520-2S-5.5GB
8.9
50.0
25.0
5.5
7.5