2.1 System construction and wiring
2.1.4 Servo motor and AC power supply wiring diagrams
The power supply for the servo driver is a three-phase AC 220V which generally come from three-phase
AC380V power supply through a transformer. In peculiar circumstance, the small servomotor, which is less than
750W, can use single-phase AC220V (L1 and L2 terminals connect to single-phase power supply. Leave L3
terminal alone).
2.1.5 Main circuit terminal explanation
Terminal name
Main power
supply
Control power
supply
Servomotor
Ground
Symbol
L1、L2、L3
L1C、L2C
U
V
W
Detailed explanation
Connect to external AC power supply
3 phase 220VAC -15%～+10% 50/60Hz
Connect to external AC power supply
1 phase 220VAC -15%～+10% 50/60Hz
U phase output to servomotor
V phase output to servomotor
W phase output to servomotor
Ground terminal of servomotor
Ground terminal of servo driver
9
    "