ABB ACS550 User Manual page 251

ACS550 User's Manual
Alarm
code
2004
2005
2006
2007
2008
2009
2010
2011
2012
Display
The change in direction being attempted is not allowed. Either:
DIR LOCK
• Do not attempt to change the direction of motor rotation, or
• Change parameter 1003
reverse operation is safe).
Fieldbus communication has timed out. Check for and correct:
IO COMM
• Fault setup (3018
• Communication settings
Group 53: EFB PROTOCOL
• Poor connections and/or noise on line.
1 Analog input 1 is lost, or value is less than the minimum setting.
AI LOSS
Check:
• Input source and connections.
• Parameter that sets the minimum (3021).
• Parameter that sets the alarm/fault operation (3001),
2 Analog input 2 is lost, or value is less than the minimum setting.
AI LOSS
Check:
• Input source and connections.
• Parameter that sets the minimum (3022).
• Parameter that sets the alarm/fault operation (3001).
Panel communication is lost and either:
PANEL LOSS
• Drive is in local control mode (the control panel displays LOC), or
• Drive is in remote control mode (REM) and is parameterized to
accept start/stop, direction or reference from the control panel.
To correct check:
• Communication lines and connections.
• Parameter 3002
• Parameters in
REFERENCE SELECT
Drive heatsink is hot. This alarm warns that a
DEVICE
may be near.
OVERTEMP
R1...R4 & R7/R8: 100 °C (212 °F)
R5/R6: 110 °C (230 °F)
Check for and correct:
• Fan failure.
• Obstructions in the air flow.
• Dirt or dust coating on the heat sink.
• Excessive ambient temperature.
• Excessive motor load.
Motor is hot, based on either the drive's estimate or on temperature
MOTOR TEMP
feedback. This alarm warns that a
near. Check:
• Check for overloaded motor.
• Adjust the parameters used for the estimate (3005...3009).
• Check the temperature sensors and
MEAS.
Not used.
RESERVED
Motor is operating in the stall region. This alarm warns that a
MOTOR STALL
fault trip may be near.
STALL
Description
to allow direction change (if
DIRECTION
and 3019
COMM FAULT FUNC
(Group 51: EXT COMM MODULE
as appropriate).
.
PANEL COMM ERR
Group 10: START/STOP/DIR
(if drive operation is REM).
MOT OVERTEMP
Group 35: MOTOR TEMP
251
).
COMM FAULT TIME
or
and Group 11:
fault
DEVICE OVERTEMP
fault trip may be
MOTOR
Diagnostics