Mitsubishi Electric MELSERVO-J4 Instruction Manual Trouble Shooting page 34

1. TROUBLESHOOTING
Alarm No.: 32 Name: Overcurrent
Alarm content
Detail
Detail name
No.
32.3 Overcurrent Check it with the check method for [AL. 32.1].
detected at
hardware
detection circuit
(during a stop)
32.4 Overcurrent Check it with the check method for [AL. 32.2].
detected at
software
detection
function (during
a stop)
Alarm No.: 33 Name: Overvoltage
Alarm content
Detail
Detail name
No.
33.1 Main circuit (1)
voltage error
(2)
(3) Wire breakage of built-in
(4) The regeneration
(5) Power supply voltage
(6) Something near the
Current that flew is higher than the permissible current of the servo amplifier.
Cause
The value of the bus voltage exceeded the prescribed value.
200 V amplifier: 400 V DC or less
400 V amplifier: 800 V DC or less
Cause
The setting of the Check the
regenerative resistor regenerative resistor
(regenerative option) is (regenerative option)
incorrect. and [Pr. PA02] setting.
The regenerative Check if the
resistor (regenerative regenerative resistor
option) is not (regenerative option)
connected. is connected correctly.
Measure the
regenerative resistor or resistance of the built-
regenerative option in regenerative
resistor or
regenerative option.
Set a larger
capacity is insufficient. deceleration time
constant, and then
check the
repeatability.
Check the input
high. voltage.
Check the noise,
device caused it. ambient temperature,
etc.
Check method Check result
Check method Check result
The setting value is
incorrect.
It is set correctly.
It is not connected
correctly.
It is connected
correctly.
The resistance is
abnormal.
The resistance is
normal.
It is not repeatable.
It is repeatable.
It is higher than the
prescribed value.
200 V amplifier:
264 V AC or less
400 V amplifier:
523 V AC or less
It is the prescribed
value or lower.
It has a failure.
1 - 27
Action Target
Action Target
Set it correctly. [A]
[B]
[WB]
Check (2).
[RJ010]
Connect it correctly.
Check (3).
When using a built-in
regenerative resistor,
replace the servo
amplifier. When using
a regenerative option,
replace the
regenerative option.
Check (4).
When using a built-in
regenerative resistor,
use a regenerative
option. When using a
regenerative option,
use a larger capacity
one.
Check (5).
Reduce the input
voltage.
Check (6).
Take
countermeasures
against its cause.