MITSUBISHI ELECTRIC MR-E- A/AG - Manual (Page 65)

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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 signal 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 supply connector (CNP1) is optional. Purchase it without fail.
3.7.1 Connection example
Wire the power supply and main circuit as shown below so that the servo-on signal 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
Emergency stop
Servo-on
Trouble
Servo amplifier
External
power
supply
24VDC
(Note)
RA
OFF
ON
MC
MC
SK
NFB MC
L
1
L 2
L 3
VIN
EMG
SON
SG
ALM
SG
RA
CNP1
P
D
C
Note: To use the built-in regenerative resistor, be sure to connect across P and D of the power supply connector (CNP1).
Emergency
stop