Browse FAQs

What can cause an CFB or cabinet circuit B error on the ATV630 and ATV930 Process drives?

Published date: 25 September 2018

Issue:
What can cause an CFB or cabinet circuit B error on the ATV630 and ATV930 Process drives?

Product Line:
ATV630 and ATV930 Process drives

Environment:
All 

Cause:
The monitoring function has detected an error on the digital input assigned to [Cabinet Circuit B Assign].
CFB is active when the detected error duration longer than [Cabinet Circuit B Delay] FdB.

Resolution:
The fault can only appear if a cabinet input has been configured as Cabinet Circuit B error.
The stop type when the fault appears is configurable.
The acquisition time of LI is 2ms.
Probable cause:
The monitoring function has detected an error on the digital input assigned to [Cabinet Circuit B Assign].
CFB is active when the detected error duration longer than [Cabinet Circuit B Delay] FdB.
Remedies:
• Check the connected device (door switch, thermal switch,…) and its wiring.
• Check the parameters CFAB (high/low assignment of the cabinet IO)

Was this helpful?

What can we do to improve the information ?

Can't find what you are looking for?

Reach out to our customer care team to receive information on technical support, assistance for complaints and more.