4. SIGNALS AND WIRING
4.7 Input power supply circuit
CAUTION
4.7.1 Connection example
Wire the power supply and main circuit as shown below so that the servo-on (RYn0) turns off as soon as
alarm occurrence is detected and power is shut off.
A no-fuse breaker (NFB) must be used with the input cables of the power supply.
(1) For 3-phase 200 to 230VAC power supply
3-phase
200 to 230 VAC
When the servo amplifier has become faulty, switch power off on the servo
amplifier power side. Continuous flow of a large current may cause a fire.
Use the trouble signal to switch power off. Otherwise, a regenerative brake
transistor fault or the like may overheat the regenerative brake resistor, causing a
fire.
Forced
stop
RA
NFB
MC
Forced stop
ON
OFF
MC
Servo amplifier
L
1
L
2
L
3
L
11
L
21
EMG
SG
VDD
COM
ALM
4 - 17
MC
SK
RA
Trouble