Siemens CU240B-2 Parameter Manual page 731

F30903 Power unit: I2C bus error occurred
Reaction: OFF2 (IASC/DCBRAKE, NONE, OFF1, OFF3, STOP2)
Acknowledge: IMMEDIATELY
Cause: Communications error with an EEPROM or A/D converter.
Fault value (r0949, interpret hexadecimal):
80000000 hex:
- internal software error.
00000001 hex ... 0000FFFF hex:
- module fault.
Remedy: Re fault value = 80000000 hex:
- upgrade firmware to later version.
Re fault value = 00000001 hex ... 0000FFFF hex:
- replace the module.
A30920 (F) Temperature sensor fault
Reaction: NONE
Acknowledge: NONE
Cause: When evaluating the temperature sensor, an error occurred.
Alarm value (r2124, interpret decimal):
1: Wire breakage or sensor not connected (KTY: R > 2120 Ohm).
2: Measured resistance too low (PTC: R < 20 Ohm, KTY: R < 50 Ohm).
Remedy: - make sure that the sensor is connected correctly.
- replace the sensor.
A30999 (F, N) Power unit: Unknown alarm
Reaction: NONE
Acknowledge: NONE
Cause: An alarm occurred on the power unit that cannot be interpreted by the Control Unit firmware.
This can occur if the firmware on this component is more recent than the firmware on the Control Unit.
Alarm value (r2124, interpret decimal):
Alarm number.
Note:
If required, the significance of this new alarm can be read about in a more recent description of the Control Unit.
Remedy: - replace the firmware on the power unit by an older firmware version (r0128).
- upgrade the firmware on the Control Unit (r0018).
F50510 FBLOCKS: Logon of the run-time group rejected
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: When the run-time groups of the free function blocks attempted to log on with the sampling time management, the
logon of at least one run-time group was rejected.
Too many different hardware sampling times may have been assigned to the free function blocks.
Remedy: - Check number of available hardware sampling times (T_sample < 8 ms) (r7903).
F50511 FBLOCKS: Memory no longer available for free function blocks
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: When the free function blocks were activated, more memory was requested than was available on the Control Unit.
Remedy: Not necessary.
A50513 (F) FBLOCKS: Run sequence value already assigned
Reaction: NONE
Acknowledge: NONE
Cause: An attempt was made to assign a run sequence value already assigned to a function block on this drive object to
another additional function block on the same drive object. A run sequence value can only be precisely assigned to
one function block on one drive object.
Remedy: Set another value that is still available on this drive object for the run sequence.
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Faults and Alarms
List of Faults and Alarms
3-731