Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 454

15. MR-J3W-0303BN6 SERVO AMPLIFIER
Alarm No.: 33 Name: Overvoltage
Alarm content
Display Detail name
33.1 Main circuit 1) Lack of regenerative
voltage error
2) Power supply voltage high.
The voltage is 35VDC or lower when 48VDC is set for the main circuit power supply, or 15VDC or lower when
24VDC is set for the main circuit power supply.
Cause
capacity
Stop system: All axes
Check method
Set a larger It is not repeatable.
deceleration time
constant, and then
check the repeatability.
It is repeatable.
Check the input voltage. The voltage is
75VDC or higher
when 48VDC is set
for the main circuit
power supply, or
55VDC or higher
when 24VDC is set
for the main circuit
power supply.
The voltage is less
than 75VDC when
48VDC is set for the
main circuit power
supply, or less than
55VDC when
24VDC is set for the
main circuit power
supply.
15 - 49
Check result
Use a regenerative option if
it is not being used.
Increase the deceleration
time constant.
Check 5).
Reduce the input voltage.
Replace the servo
amplifier.
Action