Mitsubishi Electric MELSERVO-J4 Instruction Manual page 111

1. TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
Alarm No.: E0 Name: Excessive regeneration warning
Alarm content
Detail
Detail name
No.
E0.1 Excessive (1) The regenerative
regeneration
warning
Alarm No.: E1 Name: Overload warning 1
Alarm content
Detail
Detail name
No.
E1.1 Thermal (1) The load was over 85%
overload
warning 1
during operation
E1.2 Thermal (1) The load was over 85%
overload
warning 2
during operation
E1.3 Thermal (1) The load was over 85%
overload
warning 3
during operation
E1.4 Thermal (1) The load was over 85%
overload
warning 4
during operation
E1.5 Thermal (1) The load was over 85%
overload error 1
during a stop
E1.6 Thermal (1) The load was over 85%
overload error 2
during a stop
E1.7 Thermal (1) The load was over 85%
overload error 3
during a stop
E1.8 Thermal (1) The load was over 85%
overload error 4
during a stop
There is a possibility that regenerative power may exceed permissible regenerative power of built-in
regenerative resistor or regenerative option.
Cause
Check the effective
power exceeded 85% load ratio.
of the permissible
regenerative power of
the built-in regenerative
resistor or regenerative
option.
[AL. 50 Overload 1] or [AL. 51 Overload 2] can occur.
Cause
Check it with the check method for [AL. 50.1].
to the alarm level of [AL.
50.1 Thermal overload
error 1 during
operation].
Check it with the check method for [AL. 50.2].
to the alarm level of [AL.
50.2 Thermal overload
error 2 during
operation].
Check it with the check method for [AL. 51.1].
to the alarm level of [AL.
51.1 Thermal overload
error 3 during
operation].
Check it with the check method for [AL. 50.3].
to the alarm level of [AL.
50.3 Thermal overload
error 4 during
operation].
Check it with the check method for [AL. 50.4].
to the alarm level of [AL.
50.4 Thermal overload
error 1 during a stop].
Check it with the check method for [AL. 50.5].
to the alarm level of [AL.
50.5 Thermal overload
error 2 during a stop].
Check it with the check method for [AL. 51.2].
to the alarm level of [AL.
51.2 Thermal overload
error 3 during
operation].
Check it with the check method for [AL. 50.6].
to the alarm level of [AL.
50.6 Thermal overload
error 4 during a stop].
Check method Check result
It is 85% or more.
Check method Check result
1 - 104
Action Target
Reduce the [A]
frequency of [B]
positioning. [WB]
[RJ010]
Increase the
[GF]
deceleration time
constant.
Reduce the load.
Use a regenerative
option if it is not
being used.
Action Target
[A]
[B]
[WB]
[RJ010]
[GF]