Siemens SINUMERIK 840D sl Series Diagnostics Manual page 677

08/2005
Cause: The alarm threshold for overtemperature at the inverter heatsink has been reached. The
response is set using p0290.
If the temperature of the heatsink increases by an additional 5 K, then fault F30004 is
initiated.
Remedy: Check the following:
- is the ambient temperature within the defined limit values?
- have the load conditions and the load duty cycle been appropriately dimensioned?
- has the cooling failed?
205001 <location>Power module: Overtemperature chip
Reaction: NONE
Acknowledge: NONE
Cause: Alarm threshold for overtemperature of the power semiconductor in the AC converter has
been reached. The response is set using p0290.
If the chip temperature increases by an additional 15 K, then fault F30025 is initiated.
Remedy: Check the following:
- is the ambient temperature within the defined limit values?
- have the load conditions and the load duty cycle been appropriately dimensioned?
- has the cooling failed?
- pulse frequency too high?
See also: r0037, p0290
205002 <location>Power module: Overtemp. air intake
Reaction: NONE
Acknowledge: NONE
Cause: The alarm threshold for the air intake overtemperature has been reached. The response is
set using p0290.
If the air intake temperature increases by an additional 5 K, then fault F30035 is output.
Remedy: Check the following:
- is the ambient temperature within the defined limit values?
- has the fan failed? Check the direction of rotation.
205003 <location>Power module: Overtemperature electronics unit
Reaction: NONE
Acknowledge: NONE
Cause: The alarm threshold for the overtemperature of the electronics module has been reached.
The response is set using p0290.
If the temperature of the electronics module increases by an additional 5 K, then fault
F30036 is initiated.
Remedy: Check the following:
- is the ambient temperature within the defined limit values?
- has the fan failed? Check the direction of rotation.
205004 <location>Power module: Overtemperature rectifier
Reaction: NONE
Acknowledge: NONE
Cause: The alarm threshold for the overtemperature of the rectifier has been reached. The
response is set using p0290.
If the temperature of the rectifier increases by an additional 5 K, then fault F30037 is
initiated.
Remedy: Check the following:
- is the ambient temperature within the defined limit values?
- have the load conditions and the load duty cycle been appropriately dimensioned?
- has the fan failed? Check the direction of rotation.
- has a phase of the line supply failed?
- is an arm of the supply (incoming) rectifier defective?
© 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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