
376 Diagnostics and maintenance
ACH550-01 User's Manual
2003 UNDERVOLTAGE The undervoltage controller is active. Check for
and correct:
• undervoltage on mains.
2004
DIR LOCK 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 to allow
direction change (if reverse operation is safe).
2005
IO COMM Fieldbus communication has timed out. Check for
and correct:
• fault setup (3018
COMM FAULT FUNC and 3019
COMM FAULT TIME)
• communication settings (Group 51: EXT COMM
MODULE or Group 53: EFB PROTOCOL as
appropriate)
• poor connections and/or noise on line.
2006
AI1 LOSS 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).
2007
AI2 LOSS 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).
Alarm
code
Display Description
Kommentare zu diesen Handbüchern