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What Error 7 Fault means in the Altivar 58 Drive.

FA12148

30/09/2014

Error 7 in Altivar 58 Drive indicates the defect of communication between the display device and the control board. 

Main probable causes of the fault:
 
1. Bad immunity (Display cable too long, bad grounding connection). 
2. The baud rate of the RS485 serial link has been changed.