Chapter 1. Description of Hybrid Servo Drives | VFD-VJ  
 
1-5
General Specifications 
*We have applied for UL certification for 230V models and we plan to have 460V models certified for UL by Q4 2020.. 
Control Method  SVPWM 
Speed Detector    Resolver 
Speed Command Input  DC 0~10V, support 3-point calibration of analog input 
Pressure Command Input  DC 0~10V, support 3-point calibration of analog input 
Pressure Feedback Input 
Support voltage type: DC 0 ~ 10V and current type: 4 ~ 20mA 
(For detailed instruction and settings, see Pr03-12 for more information) 
Multi-function Input Signal  6 ch DC24V 
Multi-function Output Signal  2 ch DC48V 50mA(max), 1 ch Relay output 
Analog Output Voltage 
2 channels:    1ch DC 0 ~ 10V and 1ch DC -10 ~ 10V, max. load: 2mA 
Communication Port  RJ45 x2, USB x1 
Communication Protocol  CANopen and Modbus (can be used at the same time) 
Accessories 
Speed Feedback 
PG Card 
Built-In 
Multiple Drives 
Convergent Flow 
Card 
Built-In 
Brake Resistor  Required 
Pressure Sensor 
Required (Compatible with pressure sensor with output signal 0~10V or 4~ 20mA. Use Pr03-10 
for maximum output voltage of pressure feedback, Pr03-11 for minimum output voltage of 
pressure feedback, Pr03-12 for output signal settings and Pr00-08 for maximum pressure setting.) 
EMI filter  Optional (See appendix A-7 in the user manual.) 
Protection Function 
Motor Protection 
Real-time temperature monitoring and protection, electronic thermal relay protection (supports 
KTY84-130/PTC/temperature protection switch) 
Over-Current 
Protection 
Output over-current protection and brake over-current protection 
Ground Leakage 
Current Protection 
80% higher than drive’s rated current 
Voltage Protection  Over-voltage level: V
DC
 > 415 
/
 830V; Low-voltage Level: V
DC
 < 180 
/
 360V 
 Mains Input 
Over-voltage 
Protection 
Varistor (MOV) 
Over- 
temperature 
Protection 
Monitoring the temperature of Capacitor, IGBT, Braking Chopper and Motor. 
 
Brake Resistor 
Protection 
Open circuited, low resistor value 
Environment 
Protection Level  NEMA 1/IP20 
Operation 
Temperature 
-10ºC ~ 45ºC (14°F ~ 113°F) (When the ambient temperature is around 45~60ºC, you need to 
decrease the rated current by 3%.) 
Storage 
Temperature 
-20ºC ~ 60ºC (-4°F ~ 140°F) 
Humidity  Below 90% RH (non-condensing) 
Vibration  Below 20Hz: 1.0G; between 20 and 60Hz: 0.6G 
Cooling Method  Model names end with J: Fan Cooling   
Installation Altitude 
DO NOT expose the hybrid servo drive to bad environmental conditions, such as dust, direct 
sunlight, corrosive/inflammable gasses, humidity, liquid and vibration environment. The salt in the 
air must be less than 0.01mg/cm
2
 every year. 
 
Certifications