8.6 List of alarms and faults
Axxxxx Alarm
Fyyyyy: Fault
Table 8-6 The most important alarms and faults
Number Cause Remedy
F01000 Software error in the CU Replacing the Control Unit.
F01001 Floating point exception Switch the Control Unit off and on again.
F01015 Software error in the CU Upgrade firmware or contact technical support.
F01018 Power-up aborted more than once
1. Switch the module off and on again.
2. After this fault has been output, the module is powered up with the
factory settings.
3. Recommission the inverter.
A01028 Configuration error Explanation: Parameterization on the memory card has been created with
a different type of module (Article number, MLFB).
Check the module parameters and recommission if necessary.
F01033 Switching over units: Reference pa‐
rameter value invalid
Set the value of the reference parameter not equal to 0.0 (p0304, p0305,
p0310, p0596, p2000, p2001, p2002, p2003, r2004).
F01034 Switching over units: Calculation of
the parameter values after refer‐
ence value change unsuccessful
Select the value of the reference parameter so that the parameters involved
can be calculated in the per unit notation (p0304, p0305, p0310, p0596,
p2000, p2001, p2002, p2003, r2004).
F01040 Parameters must be saved Save parameters (p0971).
Switch the Control Unit off and on again.
F01044 Error loading data from memory
card
Replace the memory card or the Control Unit.
A01053 System overload measured The maximum computing power of the Control Unit was exceeded. The
following measures reduce the load on the Control Unit:
● Use only one data record (CDS and DDS)
● Only use the safety features of the basic functions
● Deactivate the technology controller
● Use the simple ramp-function generator rather than the extended ramp-
function generator
● Do not use any free function components
● Reduce the sampling time of the free function blocks
F01054 System limit exceeded
A01101 Memory card not available Insert a memory card or deactivate alarm A01101.
Activate message for a memory card that is not inserted
(Page 380)
F01105 CU: Insufficient memory Reduce number of data sets.
F01122 Frequency at the probe input too
high
Reduce the frequency of the pulses at the probe input.
F01205 CU: Time slice overflow Contact technical support.
F01250 CU hardware fault Replacing the Control Unit.
F01512 An attempt has been made to es‐
tablish a conversion factor for scal‐
ing which does not exist
Create scaling or check transfer value.
Alarms, faults and system messages
8.6 List of alarms and faults
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 407
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