Filter
Top Products
3 - 14
3. SIGNALS AND WIRING
3.5 Power line circuit
CAUTION
When the servo amplifier has become faulty, switch power off on the amplifier
power side. Continuous flow of a large current may cause a fire.
Switch power off at detection of an alarm. Otherwise, a regenerative brake
transistor fault or the like may overheat the regenerative brake resistor, causing a
fire.
POINT
For the power line circuit of the MR-J2S-11KB to MR-J2S-22KB, refer to
Section 3.12 where the power line circuit is shown together with the servo
motor connection diagram.
3.5.1 Connection example
Wire the power supply/main circuit as shown below so that power is shut off and the servo-on command
turned off as soon as an alarm occurs, a servo forced stop is made valid, or a controller emergency stop is
made valid. 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
EM1
COM
OFF
ON
MC
MC
SK
NFB MC
L
1
L
2
L
3
L
11
L
21
VDD
SG
(Note)
Alarm
RA1
Controller
emergency stop
RA2
Forced
stop
Servo amplifier
Forced stop
Power supply
3-phase
200 to 230VAC
Note: Configure up the power supply circuit which switches off the magnetic contactor after detection of
alarm occurrence on the controller side.