Wiring Diagram - Mitsubishi Electric -MR-CV User Manual

When the magnetic contactor drive output is disabled
Even if an alarm occurs on the converter unit and drive unit, the main circuit power supply is not automatically turned off, so
configure a circuit that detects the alarms externally and turns off the main circuit power supply.

Wiring diagram

When the magnetic contactor drive output is enabled
Set the rotary switch for converter setting to "0" (factory setting).
The converter unit controls the magnetic contactor.
Connect the converter unit and the drive unit adjacent to it with a protection coordination cable.
Turn on/off the control circuit power supplies of the converter unit and drive unit at the same time.
■200 V class
MCCB
3-phase
200 V AC to
240 V AC
50/60 Hz
*1 Use the magnetic contactor with an operation delay time (interval between current being applied to the coil until closure of contacts) of
80 ms or less. The bus voltage may drop depending on the main circuit power supply voltage and operation pattern, causing a dynamic
brake deceleration during a forced stop deceleration.
*2 Configure a sequence that shuts off the main circuit power supply when an alarm occurs on a drive unit.
*3 Install an overcurrent protection device (molded-case circuit breaker, fuse, etc.) to protect the branch circuit.
Page 93 Molded-case circuit breakers, fuses, magnetic contactors
*4 For wire size and overcurrent protection device selection, refer to the following.
Page 89 Selection example of wires
5 SIGNALS AND WIRING
34
5.1 Example power circuit connections
Emergency stop
*2 switch
Drive unit error
AC reactor
*1
MC
MC1
MC2
*3*4
Ready for
operation
off/on
MR-CV_
L1 L+
To the drive unit
L2 L-
L3
CN23
1
3
L11 Protection
coordination
CN4
L21
cable
To the drive unit
MC
SK