Wiring
5
-
31
5.2.1
Installing residual current circuit breakers (optional)
For connection of an all-current sensitive ELCB use a switch suitable for the high frequency
of the robot controller inverter. Leakage breakers which cannot handle high frequencies
may malfunction.
Tab. 5-1: Example of High Frequency Leakage Breaker
Even with a leakage breaker installed, there is still a possibility of some high frequency
current leakage from the robot controller.
However, this current leakage presents no safety risks.
Fig. 5-1: Connection of the Leakage Breaker
Manufacturer
Model
Mitsubishi Electric Co., Ltd.
NV series (manufactured since 1988)
Fuji Electric Co., Ltd.
EG or SG Series (manufactured since 1984)
3-phase 400/415/440 VAC at 50/60
Hz (only with transformer)
Line filter
1-phase* 200/230 VAC at 50/60 Hz
Power relay MC1
Mains disconnecter
To converter (main circuit)
For 1-phase power supply
To converter (control circuit)
Fuse
CN1
CN1
1
2
3
3
4
5
6
7
8
9
5
6
8
9
7
1
6
2
7
3
8
4
9
5
