Input Power Supply Circuit - Mitsubishi Electric MR-J4W2-0303B6 Instruction Manual

18. MR-J4W2-0303B6 SERVO AMPLIFIER
The items in the following table are the same as those for MR-J4W2-_B and MR-J4W3-_B servo amplifiers.
Refer to the section of the detailed explanation field for details.

18.3.1 Input power supply circuit

CAUTION
Configure the wiring so that the main circuit power supply is shut off and the servo-on command turned off
after deceleration to a stop due to an alarm occurring, an enabled servo forced stop, or an enabled controller
forced stop.
Forced stop deceleration function
SSCNET III cable connection
Servo motor with an electromagnetic brake
Connect a circuit protector between the power supply and power supply voltage
input terminals (24/PM) of the servo amplifier, in order to configure a circuit that
shuts down the power supply on the side of the servo amplifier's power supply. If
a circuit protector is not connected, continuous flow of a large current may cause
a fire when the servo amplifier malfunctions.
When alarms are occurring in both axes of A and B, shut off the main circuit
power supply. Not doing so may cause a fire when a regenerative transistor
malfunctions or the like may overheat the built-in regenerative resistor.
Check the servo amplifier model, and then input proper voltage to the servo
amplifier power supply. If input voltage exceeds the upper limit of the
specification, the servo amplifier will break down.
Connecting a servo motor of the wrong axis to the CNP1 connector may cause a
malfunction.
POINT
Even if alarm has occurred, do not switch off the control circuit power supply.
When the control circuit power supply has been switched off, optical module
does not operate, and optical transmission of SSCNET III/H communication is
interrupted. Therefore, the next axis servo amplifier displays "AA" at the
indicator and turns into base circuit shut-off. The servo motor stops with starting
dynamic brake.
EM2 has the same function as EM1 in the torque control mode.
Item
18 - 16
Detailed explanation
Section 3.6
Section 3.9
Section 3.10