Mitsubishi Electric MELSEC iQ-R Series Manual page 54

No. Procedure
6 Module
recognition
7 Module control
start
For the direct change
The troubleshooting when a module is changed directly is shown in the following table for each step in online module change.
No. Procedure
1 Module
removal
2 Module
recognition
3 Module control
start
4 TROUBLESHOOTING
52
4.2 Troubleshooting by Symptom
Symptom
After 'Module recognition request
flag' (SM1606) is turned on,
'Online module changing status'
(SD1617) does not become
Module recognition completion
(8).
After 'Module control resumption
request flag' (SM1608) is turned
on, 'Online module changing
status' (SD1617) does not
become Normal operation (0).
Symptom
After the module is removed, the
READY LED on the CPU module
(RUN LED on the remote head
module) does not flash (interval of
400ms).
After a new module is mounted,
the RUN LED on the module does
not turn on.
The READY LED on the CPU
module (RUN LED on the remote
head module) does not turn on.
Check item
Is 'Online module change error
flag' (SM1618) on?
Is 'Online module change error
flag' (SM1618) on?
Check item
Is 'Online module change error
flag' (SM1618) on?
Is 'Online module change error
flag' (SM1618) on?
Is 'Online module change error
flag' (SM1618) on?
Action
When 'Online module change error flag' (SM1618) is on,
take the corrective actions corresponding to the error
code stored in 'Online module change error code'
(SD1618). ( MELSEC iQ-R CPU Module User's
Manual (Application))
After that, try again from the step of module recognition.
( Page 37 Module recognition)
When 'Online module change error flag' (SM1618) is off,
the CPU module or remote head module may be in
failure. Replace the CPU module or remote head module.
When 'Online module change error flag' (SM1618) is on,
take the corrective actions corresponding to the error
code stored in 'Online module change error code'
(SD1618). ( MELSEC iQ-R CPU Module User's
Manual (Application))
When 'Online module change error flag' (SM1618) is off,
the CPU module or remote head module may be in
failure. Replace the CPU module or remote head module.
Action
When 'Online module change error flag' (SM1618) is on,
take the corrective actions corresponding to the error
code stored in 'Online module change error code'
(SD1618). ( MELSEC iQ-R CPU Module User's
Manual (Application))
After that, try online module change from the start again.
When 'Online module change error flag' (SM1618) is on,
take the corrective actions corresponding to the error
code stored in 'Online module change error code'
(SD1618). ( MELSEC iQ-R CPU Module User's
Manual (Application))
As an alternative corrective action, remove and mount the
module again.
When 'Online module change error flag' (SM1618) is on,
take the corrective actions corresponding to the error
code stored in 'Online module change error code'
(SD1618). ( MELSEC iQ-R CPU Module User's
Manual (Application))
As an alternative corrective action, remove and mount the
module again.