ABB ACQ810 - Fault History; Alarm Messages Generated by the Drive

314 Fault tracing
Fault history
When a fault is detected, it is stored in the fault logger with a time stamp. The fault
history stores information on the 16 latest faults of the drive. Three of the latest faults
are stored at the beginning of a power switch-off.
Parameters 08.01 Active fault and 08.02 Last fault store the fault codes of the most
recent faults. Selected active faults are shown by 08.20 Pump fault word.
Alarms can be monitored via alarm words 08.05 Alarm word1 … 08.08 Alarm word4
and 08.21 Pump alarm word. Alarm information is lost at power switch-off or fault
reset.
Alarm messages generated by the drive
Code
Alarm (fieldbus code),
other information
Cause What to do
2003 SAFE TORQUE OFF
(0xFF7A)
08.05 Alarm word1 b3
Programmable alarm: 30.07
Sto diagnostic
Safe torque off function is
active, i.e. safety circuit
signal(s) connected to
connector XSTO is lost.
Check safety circuit connections. For
more information, see appropriate drive
hardware manual, description of
parameter 30.07 (page 196), and
Application guide - Safe torque off
function for ACSM1, ACS850 and
ACQ810 drives (3AFE68929814
[English]).
2004 STO MODE CHANGE
(0xFF7A)
08.05 Alarm word1 b4
Error in changing Safe
torque off supervision, i.e.
parameter 30.07 Sto
diagnostic setting could not
be changed to value Alarm.
Contact your local ABB representative.
2005 MOTOR
TEMPERATURE
(0x4310)
08.05 Alarm word1 b5
Programmable alarm: 31.01
Mot temp1 prot
Estimated motor
temperature (based on
motor thermal model) has
exceeded alarm limit
defined by parameter 31.03
Mot temp1 almLim.
Check motor ratings and load.
Let motor cool down. Ensure proper
motor cooling: Check cooling fan, clean
cooling surfaces, etc.
Check value of alarm limit.
Check motor thermal model settings
(parameters 31.09…31.14).
Measured motor
temperature has exceeded
alarm limit defined by
parameter 31.03 Mot temp1
almLim.
Check that actual number of sensors
corresponds to value set by parameter
31.02 Mot temp1 src.
Check motor ratings and load.
Let motor cool down. Ensure proper
motor cooling: Check cooling fan, clean
cooling surfaces, etc.
Check value of alarm limit.
2006 EMERGENCY OFF
(0xF083)
08.05 Alarm word1 b6
Drive has received
emergency OFF2
command.
To restart drive, activate Run enable
signal (source selected by parameter
10.11 Run enable) and start drive.
2007 RUN ENABLE
(0xFF54)
08.05 Alarm word1 b7
No Run enable signal is
received.
Check setting of parameter 10.11 Run
enable. Switch signal on (e.g. in the
fieldbus Control Word) or check wiring of
selected source.