Mitsubishi Electric MR-E A Series Instruction Manual page 65

3. SIGNALS AND WIRING
3.7 Input power supply circuit
CAUTION
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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
Note: To use the built-in regenerative resistor, be sure to connect across P and D of the power supply connector (CNP1).
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.
Emergency
stop
OFF
NFB MC
(Note)
Emergency stop
Servo-on
ON
MC
RA MC
SK
CNP1
Servo amplifier
L
1
L
2
L
3
P
D
C
EMG
SON
SG
VIN
ALM
SG
3 - 34
External
power
Trouble
supply
RA
24VDC