App. 12 Driving On/Off Of Main Circuit Power Supply With Dc Power Supply - Mitsubishi Electric MR-J4-10B(-RJ) Instruction Manual

APPENDIX

App. 12 Driving on/off of main circuit power supply with DC power supply

App. 12.1 Connection example
The power circuit is common to all capacity type of servo amplifiers. For the signal and wirings not given in
this section, refer to section 3.1.1 to 3.1.3.
Power supply
(Note 1)
(Note 2)
Forced stop 2
Note 1. For the power supply specifications, refer to section 1.3.
2. This diagram shows sink I/O interface. For source I/O interface, refer to section 3.9.3.
3. Use a magnetic contactor with an operation delay time (interval between current being applied to the coil until closure of
contacts) of 80 ms or less. Depending on the main circuit voltage and operation pattern, bus voltage decreases, and that may
cause the forced stop deceleration to shift to the dynamic brake deceleration. When dynamic brake deceleration is not
required, slow the time to turn off the magnetic contactor.
4. Configure a circuit to turn off EM2 when the main circuit power is turned off to prevent an unexpected restart of the servo
amplifier.
5. When not using the STO function, attach the short-circuit connector came with a servo amplifier.
6. The illustration of the 24 V DC power supply is divided between input signal and output signal for convenience. However, they
can be configured by one.
7. Driving the on switch and off switch with the DC power supply meets IEC/EN 60204-1 requirements.
8. Do not use the 24 V DC interface power supply for the magnetic contactor DC power supply. Always use the power supply
designed exclusively for the magnetic contactor.
9. If disabling ALM (Malfunction) output with the parameter, configure the power supply circuit which switches off the magnetic
contactor after detection of alarm occurrence on the controller side.
Malfunction
RA1
Emergency stop switch
24 V DC (Note 7,8)
MCCB
MC (Note 3)
(Note 4)
Main circuit
power supply
24 V DC (Note 6)
(Note 5)
Short-circuit connector
(Packed with the servo amplifier)
OFF
ON
MC
Servo amplifier
L1
L2
L3
CN3 CN3
EM2
DOCOM
ALM
DOCOM
CN8
App. - 61
MC
SK
24 V DC (Note 6)
(Note 2)
Malfunction
RA1
(Note 9)