1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
1 - 45
Alarm No.: 33
Name: Overvoltage
Alarm content
The value of the bus voltage exceeded the prescribed value.
200 V class: 400 V DC
400 V class: 800 V DC
100 V class: 400 V DC
48 V DC setting: 75 V DC
24 V DC setting: 55 V DC
Detail
No.
Detail name
Cause
Check method
Check result
Action
Target
33.1 Main
circuit
voltage error
(1) The setting of the
regenerative resistor
(regenerative option) is
incorrect.
Check the
regenerative resistor
(regenerative option)
and [Pr. PA02] setting.
The setting value is
incorrect.
Set it correctly.
[A]
[B]
[WB]
[RJ010]
[GF]
It is set correctly.
Check (2).
(2)
The
regenerative
resistor (regenerative
option) is not
connected.
Check if the
regenerative resistor
(regenerative option)
is connected correctly.
It is not connected
correctly.
Connect it correctly.
It is connected
correctly.
Check (3).
(3) Wire breakage of built-
in regenerative resistor
or regenerative option
Measure the
resistance of the built-
in regenerative resistor
or regenerative option.
The resistance is
abnormal.
When using a built-in
regenerative resistor,
replace the servo
amplifier. When
using a regenerative
option, replace the
regenerative option.
The resistance is
normal.
Check (4).
(4)
The
regeneration
capacity is insufficient.
Set a longer
deceleration time
constant, and then
check the
repeatability.
It is not repeatable.
When using a built-in
regenerative resistor,
use a regenerative
option. When using a
regenerative option,
use a larger capacity
one.
It is repeatable.
Check (5).
(5) Power supply voltage
high.
Check if the voltage of
the input power supply
is over the prescribed
value.
200 V class: 264 V AC
400 V class: 528 V AC
100 V class: 132 V AC
48 V DC setting: 75 V
DC
24 V DC setting: 55 V
DC
It is higher than the
prescribed value.
Reduce the power
supply voltage.
It is at the
prescribed value or
lower.
Check (6).
(6) Something near the
device caused it.
Check the noise,
ambient temperature,
etc.
It has a failure.
Take
countermeasures
against its cause.
Содержание MELSERVO MR-J4-B-RJ Series
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