ABB ACH550-01 User Manual page 387

Alarm
Display
code
2003
UNDERVOLTAGE
2004
DIR LOCK
2005
IO COMM
2006 1
AI LOSS
2007 2
AI LOSS
382
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Description
The undervoltage controller is active. Check for
and correct:
• undervoltage on mains.
The change in direction being attempted is not
allowed. Either:
• do not attempt to change the direction of motor
rotation, or
• change parameter 1003
direction change (if reverse operation is safe).
Fieldbus communication has timed out. Check for
and correct:
• fault setup (3018
COMM FAULT TIME
• communication settings
MODULE or Group 53: EFB PROTOCOL
appropriate)
• poor connections and/or noise on line.
Analogue input 1 is lost, or value is less than the
minimum setting. Check:
• input source and connections
• parameter that sets the minimum (3021)
• parameter that sets the alarm/fault operation
(3001).
Analogue input 2 is lost, or value is less than the
minimum setting. Check:
• input source and connections
• parameter that sets the minimum (3022)
• parameter that sets the alarm/fault operation
(3001).
Diagnostics and maintenance
ACH550-01 User's Manual
to allow
DIRECTION
and 3019
COMM FAULT FUNC
)
(Group 51: EXT COMM
as