Mitsubishi Electric MELSERVO-J4 Instruction Manual Trouble Shooting page 66

1. TROUBLESHOOTING
Alarm No.: E2 Name: Servo motor overheat warning
Alarm content
Detail
Detail name
No.
E2.1 Servo motor (1) The temperature of the
temperature
warning
Alarm No.: E3 Name: Absolute position counter warning
Alarm content
Detail
Detail name
No.
E3.1 Multi-revolution (1) The travel distance from
counter travel
distance
excess warning
E3.2 Absolute (1) Something near the
position
counter
warning
(2) An encoder is
E3.5 Encoder Check it with the check method for [AL. E3.2].
absolute
positioning
counter warning
Alarm No.: E4 Name: Parameter warning
Alarm content
Detail
Detail name
No.
E4.1 Parameter (1) Parameter value set
setting range
error warning
Alarm No.: E5 Name: ABS time-out warning
Alarm content
Detail
Detail name
No.
E5.1 Time-out during (1) The wiring of I/O signals
ABS data
transfer
(2) The sequence program
E5.2 ABSM off during Check it with the check method for [AL. E5.1].
ABS data
transfer
E5.3 SON off during
ABS data
transfer
[AL. 46.2 Abnormal temperature of servo motor 2] may occur.
Cause
Check it with the check method for [AL. 46.2].
linear servo motor or
direct drive motor
reached 85% of the
occurrence level of [AL.
46.2 Abnormal
temperature of servo
motor 2].
The multi-revolution counter value of the absolute position encoder exceeded the maximum range.
Absolute position encoder pulses are faulty.
Cause
Check the value of the
the home position multi-revolution
exceeded 32768 counter.
rotation in the absolute
position system.
Check the noise,
device caused it. ambient temperature,
etc.
Replace the servo
malfunctioning. motor, and then check
the repeatability.
Out of the setting range was attempted to write during parameter writing.
Cause
Check the parameter
from servo system setting value set with
controller is outside the servo system
setting range. controller.
A response from the programmable controller was over 5 s at the absolute position erased data transfer.
ABSM (ABS transfer mode) turned off during the absolute position erased data transfer.
SON (Servo-on), RES (Reset), or EM2/EM1 (Forced stop) turned off during the absolute position erased
data transfer.
Cause
Check if the I/O signal
is incorrect. wire is disconnected
or connected loosely.
Check the sequence
is incorrect. program.
Check method Check result
Check method Check result
It is over 32768
rotation.
It has a failure.
It has no failure.
It is not repeatable.
Check method Check result
It is out of setting
range.
Check method Check result
It has a failure.
It has no failure.
The sequence
program is incorrect.
1 - 59
Action Target
[A]
[B]
[WB]
Action Target
Review operation [A]
range. Execute the
home position return
again.
Take [A]
countermeasures [B]
against its cause. [WB]
[RJ010]
Check (2).
Replace the servo
motor.
Action Target
Set it within the [B]
range. [WB]
[RJ010]
Action Target
Repair or replace the [A]
I/O signal wire.
Check (2).
Modify the sequence
program.