Trouble Shooting Information for C7000VP series
1.20 E750-0002
Description
There are some reported instances from the field where, when the machine was relocated the
necessary work was done according to the procedure ‘Relocating the Machine.’ At this time,
however, not the drawer connector mount but each connector was detached from the backside
of the sub station. This caused an error in plugging each connector at the new installation place,
ultimately leading to the error code E750-0002.
- E750-0002 can be displayed when the model name informed by the main controller does
not match with that stored in the DC controller (i.e., same series but different model).
Cause
Communication error occurred between the DC controller software and the main controller
software because the connectors were plugged mistakenly.
Field Remedy
Although it's difficult to identify a connector plugged to the wrong jack from the error code, when
the same error occurs at time of relocation of this machine or service work for the drawer
connector mount, check to see if each connectors are connected to the correct jack.
Note:
When detaching/re-attaching the drawer connector to connect the main station and sub station
during installation or relocation, be sure to work not by the connector but by the drawer
connector mount to prevent errors in plugging connectors.
1.21 E750-2012
Description
There are some reported instances from the field where, at time of replacement of the fixing
intermediate assembly (FM2-9291) the two short connectors for identifying the destination
failed to be reattached, resulting in the error code E750-2012.
- E750-2012 can be displayed when the combination of the DC controller software and the
fixing assembly is not correct.
Field Remedy
When replacing the fixing intermediate assembly, be sure to follow the cautions described in
Appendix 3 ‘Points to Note When Replacing Primary/Secondary Fixing Intermediate Unit.’
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