Siemens CU240B-2 - Page 415

Alarms, faults and system messages
9.5 List of alarms and faults
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2016, FW V4.7 SP6, A5E34259001B AC
415
Table 9- 8 The most important alarms and faults
Number
Cause
Remedy
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 booted 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
parameter 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 in-
volved can be calculated in the per unit notation (p0304, p0305, p0310,
p0596, p2000, p2001, p2002, p2003, r2004).
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
F01122 Frequency at the probe input too
high
Reduce the frequency of the pulses at the probe input.
A01590 Motor maintenance interval
elapsed
Carry out maintenance and reset the maintenance interval (p0651).
A01900 PROFIBUS: Configuration tele-
gram faulty
Explanation: A PROFIBUS master is attempting to establish a connection
with a faulty configuration telegram.
Check the bus configuration on the master and slave side.
A01910
F01910
Setpoint timeout The alarm is generated when p2040 ≠ 0 ms and one of the following
causes is present:
• The bus connection is interrupted
• The Modbus master is switched off
• Communications error (CRC, parity bit, logical error)
• An excessively low value for the fieldbus monitoring time (p2040)
A01920 PROFIBUS: Cyclic connection
interrupt
Explanation: The cyclic connection to PROFIBUS master is interrupted.
Establish the PROFIBUS connection and activate the PROFIBUS master
with cyclic operation.
F03505 Analog input, wire-break Check the wiring for interruptions.
Check the level of the injected signal.
The input current measured by the analog input can be read out in r0752.
A03520
Temperature sensor fault
Check that the sensor is connected correctly.