30 
3 Wiring of servo system 
 
Servo driver interface wiring recommended wire, as shown in the following table: 
UVW power cable 
diameter mm² 
Encoder cable 
diameter mm² 
Grould cable 
  diameter 
mm² 
Note: 
(1) Please do not cross power wires and signal wires from the same pipeline, nor tie them together. 
When wiring, please keep the power wire and signal wire more than 30 cm apart. 
(2) For the signal wire and the feedback wire of the encoder (PG), please use the multi-stranded wire 
and the multi-core stranded integral shielding wire. 
(3) For wiring length, the longest instruction input wire is 3m and the longest PG feedback wire is 20m. 
(4) Even if the power supply is off, there may still be a high voltage in the servo unit. Please do not 
touch the power terminal temporarily (10 minutes). 
(5) Do not turn ON/OFF power frequently. When the ON or OFF power supply needs to be repeatedly 
connected, please control it less than once in 2 minutes. Because of the capacitance in the power supply 
of the servo driver, a large charging current (charging time of 0.2 seconds) will flow through when the 
power supply is ON. Therefore, if the ON/OFF power supply is frequently used, the performance of the 
main circuit components in the servo driver will be degraded.