Siemens Sinumerik 840D sl Diagnostic Manual page 838

Overview of Alarms
SINAMICS-Alarms
Cause: The following applies for CU31x:
Power supply fault in the power unit.
- the voltage monitoring on the DAC board signals an undervoltage fault on the module.
Remedy: Check the 24 V DC power supply for the power unit and if required replace the module.
230046 <location>Power unit: Undervoltage, alarm
Message %1
value:
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: Before the last new start, a problem occurred at the power unit power supply.
- the voltage monitoring in the internal FPGA of the PSA signals an undervoltage fault on the module.
Fault value (r0949):
Register value of the voltage fault register.
Remedy: Check the 24 V DC power supply for the power unit and if required replace the module.
230047 <location>Cooling system: Cooling medium flow rate too low
Message %1
value:
Drive object: A_INF, B_INF, S_INF, SERVO, VECTOR
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: Cooling system: Fault - flow rate has fallen below the fault value
Remedy:
230050 <location>Power unit: Supply overvoltage
Message -
value:
Drive object: All objects
Reaction: OFF2
Acknowledge: POWER ON
Cause: The following applies for CU31x and CUA31:
- the voltage monitoring on the DAC board signals an overvoltage fault on the module.
Remedy: - check the voltage supply for the Control Unit (24 V).
- if required, replace the module.
230052 <location>EEPROM data error
Message %1
value:
Drive object: All objects
Reaction: NONE
Acknowledge: POWER ON
Cause: EEPROM data error of the power unit module.
Fault value (r0949, interpret hexadecimal):
0: The EEPROM data read in from the power unit module is inconsistent.
1: EEPROM data is not compatible to the firmware of the power unit application.
Remedy: Re fault value = 0:
Replace the power unit module or update the EEPROM data.
Re fault value = 1:
The following applies for CU31x and CUA31:
Update the firmware \SIEMENS\SINAMICS\CODE\SAC\cu31xi.ufw (cua31.ufw)
230062 <location>The bypass contactor was opened under current
Message -
value:
Drive object: All objects
Reaction: NONE (OFF1, OFF2)
Acknowledge: IMMEDIATELY (POWER ON)
2-838
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009