ABB A7AC fault code meaning
ABB / A7AC
Series: ACH531, ACQ531
I/O module internal error
drive
Meaning: Internal error in the I/O module.
Possible causes
Source: ACH531 Firmware Manual P130; ACQ531 Firmware Manual P112
Series: ACM510-S
IO module internal error
drive
Meaning: Calibration data is not stored in the IO module.
Possible causes
Source: ACM510-01S_04S Drive Firmware Manual P359
Series: ACS180
Main IOMCU internal error
drive
Meaning: Calibration data is not stored in the main IOMCU.
Possible causes
Source: ACS180 Machinery Control Program Firmware Manual P317
Series: ACS280
Main IOMCU internal error
drive
Meaning: Calibration data is not stored in the main IOMCU.
Possible causes
Source: ACS280 Firmware Manual P335
Series: ACS380
I/O module internal error
drive
Meaning: Calibration data is not stored in the IO module.
Possible causes
Source: ACS380 Machinery Control Program Firmware Manual P431
Series: ACS530
I/O module internal error
drive
Meaning: I/O module internal error
Possible causes
Source: ACS530 Firmware Manual P264