[Al. 069_Command Error] - Mitsubishi Electric Melservo-J5 MR-J5 Series User Manual

[AL. 069_Command error]

• When the software limit is activated, the command position exceeded 32 bits (-2147483648 to 2147483647).
• When the software limit is activated, the command position exceeded 30 bits (-536870912 to 536870911) from the value
that was set.
• The command position exceeded 30 bits (-536870912 to 536870911) from the position which was detected after detecting
LSP (Forward rotation stroke end) or LSN (Reverse rotation stroke end).
• The command position exceeded 30 bits (-536870912 to 536870911) from the position which was detected after detecting
FLS (Upper stroke limit) or RLS (Lower stroke limit).
[AL. 069.1_Forward rotation-side software limit detection - Command excess error]
Cause
1.
The command position exceeded 32 bits when
the software limit is activated.
2.
The command position has exceeded 30 bits
from the software limit setting value.
3.
The controller is malfunctioning.
4.
There is an abnormality in the surrounding
environment.
[AL. 069.2_Reverse rotation-side software limit detection - Command excess error]
Page 57 [AL. 069.1_Forward rotation-side software limit detection - Command excess error]
[AL. 069.3_Forward rotation stroke end detection - Command excess error]
Cause
1.
The command position exceeded 30 bits from
the position which was detected after detecting
LSP (Forward rotation stroke end).
2.
The forward rotation stroke limit switch is not
connected to LSP (Forward rotation stroke
end).
3.
The controller is malfunctioning.
4.
There is an abnormality in the surrounding
environment.
Check/action method
Check if the command is set for a position which exceeds 32 bits. Set the
command position correctly.
Check the software limit.
[Pr. PT15 Software position limit +]
[Pr. PT17 Software position limit -]
Replace the controller.
Check the noise, ambient temperature, and others, 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.
Replace the controller.
Check the noise, ambient temperature, and others, 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)
1 SERVO AMPLIFIER TROUBLESHOOTING
1.3 Handling methods for alarms/warnings
1
Model
[G]
[WG]
Model
[G]
[WG]
57