Mitsubishi Electric MR-J5-G Series User Manual page 79

[AL. 069.4_Reverse rotation stroke end detection - Command excess error]
Cause
1.
The command position exceeded 30 bits from
the position which was detected after detecting
LSN (Reverse rotation stroke end).
2.
The reverse rotation stroke limit switch is not
connected to LSN (Reverse rotation stroke
end).
3.
The controller has malfunctioned.
4.
There is a problem with the surrounding
environment.
[AL. 069.5_Upper stroke limit detection - Command excess error]
Cause
1.
The command position exceeded 30 bits from
the position which was detected after detecting
FLS (Upper stroke limit).
2.
The upper stroke limit switch is not wired or
the switch is positioned incorrectly.
3.
There is a problem with the surrounding
environment.
4.
The controller has malfunctioned.
[AL. 069.6_Lower stroke limit detection - Command excess error]
Cause
1.
The command position exceeded 30 bits from
the position which was detected after detecting
RLS (Lower stroke limit).
2.
The lower stroke limit switch is not wired or the
switch is positioned incorrectly.
3.
There is a problem with the surrounding
environment.
4.
The controller has malfunctioned.
Check/action method
Review the operation pattern so that the command does not exceed 30 bits.
Check if the limit switch is connected correctly.
Replace the controller.
Check the noise, ambient temperature, and other conditions, and implement
appropriate countermeasures for the cause.
If there is noise, take countermeasures to reduce the noise.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
Check/action method
Review the operation pattern so that the command does not exceed 30 bits.
Check if the limit switch is connected correctly or if the switch is positioned
incorrectly.
Check the noise, ambient temperature, and other conditions, and implement
appropriate countermeasures for the cause.
If there is noise, take countermeasures to reduce the noise.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
Replace the controller.
Check/action method
Review the operation pattern so that the command does not exceed 30 bits.
Check if the limit switch is connected correctly or if the switch is positioned
incorrectly.
Check the noise, ambient temperature, and other conditions, and implement
appropriate countermeasures for the cause.
If there is noise, take countermeasures to reduce the noise.
Refer to "Noise reduction techniques" in the following manual.
MR-J5 User's Manual (Hardware)
Replace the controller.
1 SERVO AMPLIFIER TROUBLESHOOTING
1.3 Handling methods for alarms/warnings
1
Model
[G]
[WG]
Model
[G]
[WG]
Model
[G]
[WG]
77