ABB ACS580MV Quick Manual page 46

46 Fault tracing
Code Warning
(hex)
A2B1 Overcurrent
A2B4 Short circuit
A3D0 Grid
ridethrough
A5F4 Control unit
battery
A7EE Panel loss
Cause
Output current has
exceeded internal
alarm limit.
Short-circuit in motor
cable(s) or motor.
Grid voltage is below
the internal threshold
so the drive is
operating in low
voltage ridethrough
mode.
The battery of the
control unit is low.
Control panel or PC
tool selected as
active control
location for drive has
ceased
communicating.
What to do
Check motor load.
Check acceleration times in
parameter group 23 Speed reference
ramp (rpm operation mode) or 28
Frequency reference chain (Hz
operation mode).
Also check parameters 46.01 Speed
scaling and 46.02 Frequency scaling.
Check motor and motor cable
(including phasing and delta/star
connection).
Check there are no contactors
opening and closing in motor cable.
Check that the data in parameter
group 99 Motor data corresponds to
the motor rating plate.
Check that there are no power factor
correction capacitors or surge
absorbers in motor cable.
Check motor and motor cable for
cabling errors.
Check that there are no power factor
correction capacitors or surge
absorbers in motor cable.
Check the transformer secondary
voltage.
Replace control unit battery. Refer to
the HW manual for instructions on
battery replacement.
This warning can be suppressed
using parameter 31.40.
Check PC tool or control panel
connection.
Check control panel connector.
Disconnect and reconnect the control
panel.
Replace control panel in mounting
platform.