28 
4. “ ○ ” in the figure is main circuit terminal and “    ” in the figure is control circuit terminal. 
5. For the usage of the control circuit terminal, please refer to section 3.2.   
6. Fig. 3-3 is the wiring diagram for basic operation of model 75kW and below, and Fig. 3-4 is the wiring 
diagram for basic operation of model 90kW and above. Special attention should be paid to these models: 355 
kWP, 355 kWG, 400 kWP, 400 kWG, the main circuit terminal of external braking unit is P, N. 
 
 
3.2 Wiring and configuration of control circuit   
3.2.1 The arrangement sequence diagram of the control circuit terminals   
 
Fig. 3-5    The arrangement sequence diagram of the control circuit terminals   
3.2.2 Wiring of control circuit terminals   
  Note  
It is suggested to use the wire with cross section area over 1mm
2 
as the connecting wire of the control circuit 
terminals.  
For the terminal function description, please refer to Table 3-3. 
Table 3-3   Table for the functions of interface board terminal 
Type  
Terminal 
Name  Function  Specification 
Shield PE 
Shield 
grounding  
Used for the grounding of the 
shielded layer of the wire. The 
shielded layer of the analog 
signal wire, 485 
communication wire and 
motor power wire can be 
connected to this terminal. 
Connected to the main circuit wiring 
terminal 
 internally  
Power supply 
+10 
+10V power 
supply 
To provide +10V reference 
power for external load 
Allowable maximum output current: 10mA 
-10 
-10V power 
supply 
To provide -10V reference 
power for external load 
Allowable maximum output current: 10mA 
GND 
+10V/-10V 
power GND 
The reference ground for 
analog signal and +10V/-10V 
power 
Internal isolated with COM