Chapter 3 System configuration and assembly
13
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Caution to main circuit wiring:
Output
power
R S T PE U V W r t
Type
Input terminals
of the main
power supply
Protection
earthing
Output
terminals of
power
Input
terminals of
the control
power
0.4～0.8（kW）
1.5 1.5 1.5 ≥2.0 1.5 1.5 1.5 1.0 1.0
1.0～1.5（kW）
2.0 2.0 2.0 ≥2.0 2.0 2.0 2.0 1.0 1.0
1.7～2.6（kW）
2.5 2.5 2.5 ≥2.5 2.5 2.5 2.5 1.0 1.0
②U, V, W wires should connect with motor terminals correspondingly.
Operation of reverse rotation for motor by exchanging the wires of
three-phase terminals is not allowed.
③Due to the high frequency switch current in the motor, the leaking current is
relatively larger, the motor grounding terminal must be connected with the
servo unit grounding terminal PE and the grounding resistance should be less
than 100Ω.
④Do not touch the servo unit and motor in 5 minutes after the power supply
is switched off because there is large electrolytic capacitance keeping high
voltage inside the servo unit even if it is switched off.
⑤Operator should keep a certain distance to the servo unit and motor afte
the power is switched on.
①Wires from power supply must not be directly connected with the U, V, W
terminals.
⑥Servo motor must not be drived by the industrial power directly connecting
to the U, V, W terminals of motor in the absence of servo unit, or the servo
motor will be damaged.
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