ABB ACS 400 User Manual page 149

16 **
DC BUS RIPPLE
17
UNDERLOAD
18
19
DDCS LINK
20 - 26 **
HARDWARE ERROR
Full display blinking (ACS100-PAN)
"COMM LOSS" (ACS-PAN)
** Note! These faults are indicated by a red blinking LED and are reset by turning the power off for a
while.
ACS 400 User's Manual
• Ripple voltages on the DC bus are too large.
• Mains phase may be missing
• Fuse may be blown
Motor load is too low. Check for a problem in the driven equipment.
Refer to parameters 3013 – 3015.
Reserved
Problem with DDCS link.
• Check the DDCS option module and the optic fibres.
• Check the status of the fieldbus adapter. Refer to appropriate
fieldbus adapter manual.
• Check connections between external control system and fieldbus
adapter.
• Alternatively, check the status of the IO extension modules (NDIO),
required by PFC block.
Refer also to "DDCS Option Module Manual" and parameters 5004 –
5007.
Hardware error. Contact supplier.
Serial link failure. Bad connection between the control panel and the
ACS 400.
139