Power Line Circuit Of The Mr-J2S-11Ka To Mr-J2S-22Ka; Connection Example - Mitsubishi Electric MELSERVO MR-J2S- A Instruction Manual

3. SIGNALS AND WIRING

3.13 Power line circuit of the MR-J2S-11KA to MR-J2S-22KA

CAUTION

3.13.1 Connection example

Wire the power supply/main circuit as shown below so that power is shut off and the servo-on signal
turned off as soon as an alarm occurs, a servo emergency stop is made valid, a controller emergency stop,
or a servo motor thermal relay alarm is made valid. A no-fuse breaker (NFB) must be used with the input
cables of the power supply.
NFB
3-phase
200 to 230VAC
Emergency stop
servo-on
Note 1. When using the external dynamic break, refer to section 13.1.4.
2. There is no BW when the HA-LFS11K2 is used.
3. Always connect P-P
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.
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.
POINT
The power-on sequence is the same as in Section 5.7.3.
Servo motor
Alarm
thermal relay
RA1
RA2
MC
(Note3)
. (Factory-wired.) When using the power factor improving DC reactor,
1
refer to Section 13.2.4
emergency stop
OFF
(Note1)
Servo amplifier
Dynamic
break
U
L
1
V
L
2
W
L
3
L
11
CN2
L
21
MR-JHSCBL M
cable
P
VDD
P
1
COM
ALM RA1
EMG
SON 24VDC
power supply
SG
3 - 62
ON
MC
MC
SK
Servo motor
HA-LFS series
U
M
V
W
Encoder
BU
BV
BW
Fan
Trouble
Servo motor
OHS1 OHS2
thermal relay
RA2
(Note2)