IAI MSEL, Instruction Manual, Page: 165 / 234

Chapter 6
Troubleshooting
157
In the panel window, the error numbers follow E in the display.
Error No. Error name Description, action, etc.
41D ABS unit encoder error (3) [Detail & Cause]
It is detected the axis has moved with speed more than
the set rotation speed for an external reason during power
cutoff in Simple Absolute Type.
[Countermeasure]
1) Remove the cause of axis movement and conduct an
absolute reset.
2) Set the rotation speed allowable setting to applicable
setting for higher rotation speed than current.
421 SCARA / linear axis simultaneous
indication error
SCARA and linear movement axes were specified
simultaneously. SCARA and linear movement axes cannot
be specified or operated at the same time. Check the axis
pattern, position data, etc.
* SCARA only.
424 Size over error of position number
data in response message
[Detail & Cause]
The expanded point number in the received command is
not supported, so a response cannot be sent successfully.
[Countermeasure]
Check the communication message and so on.
42F Positioning timeout error when
home position determined
Positioning did not finish at home-return operation.
It can be concerned that there was an error in servo-motor
gain adjustment or interference of the actuator at the
home-return operation.
491 IA Net stop detection error at IAI
protocol transfer
IA Net is not working properly during the IAI protocol
transfer in IA Net.
Confirm that the IA Net board is mounted in the
appropriate way or the IA Net is working properly.
492 IA Net IAI protocol mail sending
error
IAI protocol communication failed in IA Net.
Check the condition of IA Net connection, communication
station number, I/O parameters No. 602 to 605, etc.
49B SEL program source symbol
management domain sum check
error
[Detail & Cause]
An error was detected in SEL program data stored in the
flash ROM.
[Countermeasure]
SEL program will be initialized. Contact IAI in case the
same error occurs even after flash ROM writing is
conducted.
49C SEL program source symbol
management domain ID error
[Detail & Cause]
An error was detected in SEL program data stored in the
flash ROM.
[Countermeasure]
SEL program will be initialized. Contact IAI in case the
same error occurs even after flash ROM writing is
conducted
49D Symbol definition table
management domain sum check
error
[Detail & Cause]
An error was detected in the symbol definition table data
stored in the flash ROM.
[Countermeasure]
The symbol definition table data will be initialized. Contact
IAI in case the same error occurs even after flash ROM
writing is conducted
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49E Symbol definition table
management domain ID error
[Detail & Cause]
An error was detected in the symbol definition table data
stored in the flash ROM.
[Countermeasure]
The symbol definition table data will be initialized. Contact
IAI in case the same error occurs even after flash ROM
writing is conducted