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Mitsubishi Electric Melservo JE Series Instruction Manual page 294

Servo amplifier, sscnet iii/h interface ac servo with functional safety

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APPENDIX
App. 7 When turning on or off the input power supply with DC power supply
App. 7.1 Connection example
For the signals or wiring that are not described in this section, refer to section 3.1.
(1) When not using ALM (Malfunction)
Note 1. For 1-phase 200 V AC to 240 V AC, connect the power supply to L1 and L3. Leave L2 open.
2. This diagram shows sink I/O interface. For source I/O interface, refer to section 3.8.3.
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 packed with a servo amplifier.
6. Driving the on switch and off switch with the DC power supply meets IEC/EN 60204-1 requirements.
7. 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.
8. Configure the power supply circuit which switches off the magnetic contactor after detection of alarm occurrence on the
controller side.
MCCB
(Note 1)
3-phase
200 V AC to
240 V AC
(Note 4)
Main circuit
power supply
(Note 2)
Forced stop 2
(Note 5)
Short-circuit connector
(Packed with the servo amplifier)
App. - 19
(Note 8)
Alarm
Emergency stop switch
24 V DC (Note 6, 7)
MC (Note 3)
L1
L2
L3
CN3
EM2
DOCOM
24 V DC
CN8
MC
OFF
ON
MC
SK
Servo amplifier

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