Siemens SINUMERIK 840D sl Series Diagnostics Manual page 725
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- Function manual (2184 pages) ,
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08/2005
Cause:
24 V power supply fault for the power module.
- the 16 V threshold was fallen below.
Fault value (r0949):
24 V voltage [1 bit = 0.1 V].
The following applies for PSA XM and PSA GL:
Before the last new start, a problem occurred at the 24 V power module power supply.
- the set lower threshold for the 24 V power supply voltage (default setting 18 V) was fallen
below.
Remedy:
Check the 24 V DC voltage supply to power module.
230042
<location>Power module: Fan operating time reached or exceeded
Reaction:
NONE
Acknowledge:
NONE
Cause:
The maximum operating time of the fan in the power module is set in p0252.
This message indicates the following:
Fault value (r0949, decimal):
0: The maximum fan operating time is 500 hours.
1: The maximum fan operating time has been exceeded.
Remedy:
Replace the fan in the power module and reset the operating hours counter to 0 (p0251 =
0).
See also: p0251, p0252
230043
<location>Power module: Overvoltage 24 V
Reaction:
OFF2
Acknowledge:
POWER ON
Cause:
The following applies for PSA XM and PSA GL:
24 V power supply overvoltage for the power module.
- the set, upper threshold for the 24 V power supply voltage (default setting 31.5 V) was
exceeded.
Remedy:
Check the 24 V DC voltage supply to power module.
230044
<location>Power module: Overvoltage 24 V alarm
Reaction:
NONE
Acknowledge:
NONE
Cause:
The following applies for PSA XM and PSA GL:
Before the last new start, a problem occurred at the 24 V power module power supply.
- the set, upper threshold for the 24 V power supply voltage (default setting 31.5 V) was
exceeded.
Remedy:
Check the 24 V DC voltage supply to power module.
230045
<location>Power module: Undervoltage, supply
Reaction:
OFF2
Acknowledge:
POWER ON
Cause:
The following applies for PSA XM and PSA GL:
Power supply fault in the power module.
- 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.
230046
<location>Power module: Undervoltage, alarm
Reaction:
NONE
Acknowledge:
NONE
© Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
Overview of Alarms
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