ABB ACQ80-04 Firmware Manual page 208

208 Fault tracing
Warning / Aux. code
(aux code visible only
Code
on assistant control
(hex)
panel and drive
composer)
AFF6 Identification run
B5F6 Identification run
B5A0 STO event
Programmable
event:31.22 STO
indication run/stop
D506 Pump cleaning not
possible
D5B0 Pump min speed
D5B1 Start delay active
FA90 STO diagnostics
failure
Cause
Motor ID run will occur at next
start.
Motor ID run completed
successfully.
Safe torque off function is
active, ie. safety circuit
signal(s) connected to
connector STO is lost.
Pump cleaning not started as
the drive is not in remote
control.
This alarm occurs when the
start command is provided and
the actual speed of the motor
(01.01) is not increasing
above 79.51 Pump minimum
speed within the time
calculated by the drive
software internally.
The warning resets
automatically after the time
defined in 79.61 Fault reset
time elapses and if start
command is active, the drive
restarts automatically.
This alarm occurs if more than
three start occurs within one
minute.
The software is not working
properly.
What to do
Informative warning.
Informative warning.
Check safety circuit connections. For
more information, see chapter The Safe
torque off function in the Hardware
manual of the drive and description of
parameter 31.22 STO indication run/stop
(page 109).
Set the drive to remote control mode.
Check the pump minimum speed
set in 79.51 Pump minimum
This warning resets automatically after
five minutes and if start command is
present, drive starts automatically.
Restart the control unit.
speed.