Input Power Supply Circuit; Connection Example - Mitsubishi Electric GENERAL PURPOSE AC SERVO MR-E- A/AG Instruction Manual

3. SIGNALS AND WIRING

3.7 Input power supply circuit

CAUTION

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
NFB MC
(Note)
Emergency stop
Servo-on
ON
OFF
RA MC
CNP1
Servo amplifier
L
1
L
2
L
3
P
D
C
EMG
SON
SG
3 - 34
MC
SK
VIN
Trouble
ALM RA
SG
External
power
supply
24VDC