Table 61: Fault codes
Fault
code
Fault ID Fault name
Possible cause
How to correct the fault
8
600
System fault
There is no communication
between the control board
and the power.
Reset the fault and restart the
drive.
If the fault occurs again, ask
instructions from the distributor
near to you.
602
Watchdog has reset the
CPU.
603
The voltage of auxiliary
power in the power unit is
too low.
604
Phase fault: Output phase
voltage does not agree to
the reference.
605
Fault in CPLD, but there is
no detailed information
about the fault.
606
The software of the control
unit is not compatible with
the software of the power
unit.
Download the latest software from
the Danfoss website. Update the
drive with it.
If the fault occurs again, ask
instructions from the distributor
near to you.
607
The software version cannot
be read. There is no soft-
ware in the power unit.
Update the power unit software.
If the fault occurs again, ask
instructions from the distributor
near to you.
608
A CPU overload. A part of
the software (for example
application) has caused an
overload situation.
Reset the fault and restart.
If the fault occurs again, ask
instructions from the distributor
near to you.
609
Access to the memory is
failed. For example, the
retain variables could not be
restored.
610
Necessary device properties
cannot be read.
8
647
System fault
Software error.
Download the latest software from
the Danfoss website. Update the
drive with it.
If the fault occurs again, ask
instructions from the distributor
near to you.
648
Invalid function block is
used in the application. The
system software is not com-
patible with the application.
649
A resource overload. A
parameter loading, restor-
ing or saving malfunction.
FAULT TRACING
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