Diagnostics 69
D4B0 Running dry Dry run protection is activated. Check the pump inlet for sufficient
water level. Check dry run protection
settings in parameter group 82 Pump
protections.
D4B1 PV max volt The DC bus voltage in the inverter is
above the voltage set in 79.43 PV
cell max voltage.
• Check the number of PV cells
connected in series.
• Ensure that voltage is less
than the voltage set in 79.43 PV cell
max voltage.
FF61 ID run Motor ID run was not completed
successfully.
Check
• nominal motor values in parameter
group 98 User motor parameters.
• that no external control system is
connected to the drive.
• that no operation limits prevent the
completion of the ID run. Restore
parameters to default settings and
try again.
• that the motor shaft is not locked.
Cycle the power to the drive (and its
control unit, if powered separately).
FF63 STO diagnostics
failure.
SW internal malfunction. Reboot the control unit (using
parameter 96.03 Control board boot
or by cycling power.
FF81 FB A force trip A fault trip command through fieldbus
adapter A.
Check the fault information provided
by the PLC.
FF8E EFB force trip A fault trip command through
embedded fieldbus interface.
Check the fault information provided
by the PLC.
Code
(hex)
Fault / Aux. code aux
code visible only on
assistant control panel
and drive composer)
Cause What to do
1 – Maximum current limit too low B – (Asynchronous motors only)
Speed dropped to zero during ID run.
2 – Maximum speed limit or calculated field
weakening point too low
C – (Permanent magnet motors only). First
acceleration did not finish within reasonable time.
3 – Maximum torque limit too low D – (Permanent magnet motors only). Second
acceleration did not finish within reasonable time.
4 – Current measurement calibration not
finished within reasonable time
E…10 – Internal error
5...8 – Internal error 11 – (Synchronous reluctance motors only). Pulse
test error.
9 – (Asynchronous motors only).
Acceleration not finished within reasonable
time.
12 – Motor too large for advanced standstill ID
run.
A – (Asynchronous motors only).
Deceleration not finished within reasonable
time.
13 – (Asynchronous motors only). Motor data
error.
ACQ80R0-R8 QIG.book Page 69 Friday, February 1, 2019 1:18 PM
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