Mitsubishi Electric MR-J5 Series User Manual page 157

*1 Remove the short bar between P3 and P4.
*2 Be sure to connect between P+ and D terminals (factory-wired).
*3 When using a simple converter, do not wire to L1/L2/L3 on the servo amplifier side. When the simple converter is enabled, an alarm
occurs if voltage of the L1/L2/L3 terminals is detected.
*4 If overheating of the simple converter is detected, between TH1 and TH2 becomes open. Configure wiring that turns off the servo-on
command after deceleration to a stop by an enabled servo forced stop, an enabled controller emergency stop, or others simultaneously
with when the main circuit power supply of the simple converter is shut off using a 2a contact relay or the like.
*5 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. Bus voltage may drop, depending on the main circuit voltage and operation pattern, causing a dynamic brake deceleration
during a forced stop deceleration.
*6 To prevent an unexpected restart of the servo amplifier, configure a circuit to turn off EM1 of the servo amplifier when the main circuit
power supply is turned off.
*7 When using multiple servo amplifiers connected to a common bus, configure a sequence that shuts off the main circuit power supply if
an alarm occurs in any of the servo amplifiers, using an I/O module or the like. Configure a sequence in which the servo system
controller will stop all the servo amplifiers if an alarm occurs even in one servo amplifier.
*8 Install an overcurrent protection device (molded-case circuit breaker, fuse, or others) to protect the branch circuit.
*9 Twist or bundle the wires between P4/N- of the simple converter and P4/N- of the servo amplifier with cable ties to keep the two wires
close to each other. Also, total wiring length from P4/N- of the simple converter to P4/N- of the servo amplifier should be 5 m or less.
• Connection example of driving on/off of main circuit power supply with DC power supply
ALM
RA1 RA2
Emergency stop switch
24 V DC
MCCB
3-phase
200 V AC to 240 V AC
• Magnetic contactor used for driving on/off of main circuit power supply with DC power supply
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.
Model
MR-CM3K
OFF
ON
MC
SK
MC
Simple converter
CN10
TH1
TH2
CNP1
L1
CNP2
L2
N-
L3
P4
Magnetic contactor
SD-T21
6 OPTIONS AND PERIPHERAL EQUIPMENT
6.3 MR-CM simple converter
6
155