Mitsubishi Electric Melsec Q Series User Manual page 124

7 ONLINE MODULE CHANGE
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(2) Dismounting of module
(a) After choosing [Diagnosis] - [Online module change] on GX Developer to
enter the "Online module change" mode, double-click the module to be
changed online to display the "Online module change" dialog box.
(b) Click the "Execution" button to enable a module change.
If the following error dialog box appears, click the [OK] button, dismount the
module as-is, and mount a new module.
(c) After confirming that the "RUN" LED of the module has turned off, remove
the terminal block and dismount the module.
POINT
Always dismount the module. If mounting confirmation is made without the module
being dismounted, the module will not start properly and the "RUN" LED will not be
lit.
MELSEC-Q
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