Siemens SINUMERIK 840D sl Series Diagnostics Manual page 726

Overview of Alarms
Cause: The following applies for PSA XM and PSA GL:
Before the last new start, a problem occurred at the power module 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 module and if required replace the module.
230047 <location>Cooling system: Cooling medium flow rate too low
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: Cooling system: Fault - flow rate has fallen below the fault value
Remedy:
230105 <location>PM: Actual value sensing incorrect
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: At least one incorrect actual value channel was detected on the power stack adapter
(PSA).
The incorrect actual value channels are displayed in the following diagnostic parameters.
Remedy: Evaluate the diagnostic parameters.
If the actual value channel is incorrect, check the components and if required, replace.
230600 <location>SI MM: STOP A initiated
Reaction: OFF2
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The drive-based "Safety Integrated" function in the motor module (MM) has detected a
fault and initiated STOP A (pulse cancellation via the safety shutdown path of the motor
module).
- forced checking procedure of the safety shutdown path of the motor module
unsuccessful.
- subsequent response to fault F30611 (defect in a monitoring channel).
Note:
This fault results in the following safety stop response dependent on p9501:
- Motion monitoring not enabled (p9501 = 0) --> STOP A that can be acknowledged.
- Motion monitoring not enabled (p9501 = 0) --> STOP A that cannot be acknowledged
(POWER ON).
Fault value (r0949, decimal):
0: Stop request from the control unit.
1005: Pulses cancelled although SH not selected and there is not internal STOP A present.
1010: Pulses enabled although SH is selected or an internal STOP A is present.
9999: Subsequent response to fault F30611.
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005