Battery Warning; Excessive Regeneration Warning - Mitsubishi Electric MELSERVO-JE Instruction Manual

1. SERVO AMPLIFIER TROUBLESHOOTING
Alarm No.: 9B Name: Error excessive warning
Alarm content
Detail
Detail name
No.
9B.1 Excess droop (10) Servo motor shaft was
pulse 1
warning
(11) An encoder is
9B.3 Excess droop Check it with the check method for [AL. 9B.1].
pulse 2
warning
9B.4 Error excessive (1) The torque limit value
warning during
0 torque limit
Alarm No.: 9F Name: Battery warning
Alarm content
Detail
Detail name
No.
9F.1 Low battery (1) The battery cable is not
(2) The battery voltage is
Alarm No.: E0 Name: Excessive regeneration warning
Alarm content
Detail
Detail name
No.
E0.1 Excessive (1) The regenerative
regeneration
warning
Droop pulses have exceeded the warning occurrence level.
Cause
Measure the actual
rotated by external position under the
force. servo-lock status.
Replace the servo
malfunctioning. motor, and then check
the repeatability.
Check the torque limit
is 0. value.
The battery voltage for absolute position detection system decreased.
Cause
Check if the battery
connected to CN4. cable is connected
correctly.
Check the battery
low. The battery is voltage with a tester.
consumed.
The regenerative power may exceed the permissible regenerative power of the 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.
Check method Check result
It is rotated by
external force.
It is not rotated by
external force.
It is not repeatable.
The torque limit
value is 0.
Check method Check result
It is not connected.
It is connected.
It is less than 4.9 V
DC.
Check method Check result
It is 85% or more.
1 - 49
Action Target
Review the [A]
machine. [B]
[C]
Check (11).
Replace the servo
motor.
Do not input a [A]
command while the [B]
torque limit value is [C]
0.
Action Target
Connect it correctly. [B]
[C]
Check (2).
Replace the battery.
Action Target
Reduce the
[A]
frequency of [B]
positioning. [C]
Increase the
deceleration time
constant.
Reduce the load.
Use a regenerative
option if it is not
being used.