Siemens CU230P-2 HVAC Parameter Manual page 649

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: NONE
Acknowledge: IMMEDIATELY
Cause: When the run-time groups of the free function blocks attempted to log on with the internal interface of 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: NONE
Acknowledge: IMMEDIATELY
Cause: When the free function blocks were activated, more memory was requested than was available on the Control Unit.
Remedy: None
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.
Alarm value (r2124, interpret decimal):
yyyyxxxx dec
xxxx = Parameter number that rejected the run sequence value.
yyyy = Parameter number that already has the run sequence value.
Remedy: Set another value that is still available on this drive object for the run sequence.
A50517 FBLOCKS: Int. meas. active
Reaction: NONE
Acknowledge: NONE
Cause: A Siemens internal measurement has been activated.
Remedy: Carry out a POWER ON (power off/on) for the Control Unit involved.
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Faults and Alarms
List of Faults and Alarms
3-649