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3. SIGNALS AND WIRING
3.7 Input power supply circuit
CAUTION
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 (ALM) to switch power off. Otherwise, a regenerative brake
transistor fault or the like may overheat the regenerative brake resistor, causing a
fire.
3.7.1 Connection example
Wire the power supply and main circuit as shown below so that the servo-on (SON) 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
RA
OFF
ON
MC
MC
SK
NFB
MC
L
1
L
2
L
3
L
11
L
21
EMG
SON
SG
VDD
COM
ALM
RA
3-phase
200 to 230 VAC
Forced stop
Servo-on
Trouble
Servo amplifier
Forced
stop
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Содержание MELSERVO MR-J2 C Series
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