Siemens Sinumerik 840D sl Diagnostic Manual page 718

Overview of Alarms
SINAMICS-Alarms
Cause: The alarm threshold for overtemperature at the inverter heat sink has been reached. The response is
set using p0290.
If the temperature of the heat sink 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 unit: Chip overtemperature
Message -
value:
Drive object: A_INF, B_INF, S_INF, SERVO, VECTOR
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 (Power unit overload response)
205002 <location>Power unit: Air intake overtemperature
Message -
value:
Drive object: A_INF, B_INF, S_INF, SERVO, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The alarm threshold for the air intake overtemperature has been reached. For air-cooled power units,
the threshold is 42 °C (hysteresis 2 K). The response is set using p0290.
If the air intake temperature increases by an additional 13 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 unit: Electronics board overtemperature
Message -
value:
Drive object: A_INF, B_INF, S_INF, SERVO, VECTOR
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 initi-
ated.
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 unit: Rectifier overtemperature
Message -
value:
Drive object: A_INF, B_INF, S_INF, SERVO, VECTOR
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.
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009