Faults and Alarms
List of Fault and Alarm messages
3-392
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
A00504 Inverter OverTemperature
Reaction: NONE
Acknowledge: NONE
Cause: Warning level of inverter heat sink temperature, warning level of chip junction temperature, or allowed change in tem-
perature on chip junction is exceeded, resulting in pulse frequency reduction and/or output frequency reduction
(depending on parameterization in P0290).
Remedy: Note:
r0037 = 0: Heat sink temperature
r0037 = 1: Chip junction temperature (includes heat sink)
Check the following:
• Ambient temperature must lie within specified limits
• Load conditions and load steps must be appropriate
• Fan must turn when drive is running
A00505 Inverter I2T
Reaction: NONE
Acknowledge: NONE
Cause: Warning level exceeded, current will be reduced if parameterized (P0610 = 1)
Remedy: Check that load cycle lies within specified limits.
A00506 IGBT junction temperature rise warning
Reaction: NONE
Acknowledge: NONE
Cause: Overload warning. Difference between heat sink and IGBT junction temperature exceeds warning limits.
Remedy: Check that load steps and shock loads lie within specified limits.
A00507 Inverter temp. signal lost
Reaction: NONE
Acknowledge: NONE
Cause: Inverter temperature signal loss
Remedy: Check the following:
• the connection of the motor temperature sensor to the control unit
• the setting of p0601
A00511 Motor OverTemperature I2T
Reaction: NONE
Acknowledge: NONE
Cause: • Motor overloaded.
• Load cycles or load steps too high.
Remedy: Independently of the kind of temperature determination check:
• P0604 motor temperature warning threshold
• P0625 motor ambient temperature
If P0601 = 0 or 1, check the following:
• Check if name plate data are correct? If not perform quick commissioning. Accurate equivalent circuit data can
be found by performing motor identification (P1910=1).
• Check if motor weight (P0344) is reasonable. Change if neccesary.
• Via P0626, P0627, P0628 the standard overtemperatures can be changed, if the motor is not a Siemens stan-
dard motor.
If P0601 = 2, Check the following:
• Check if temperature shown in r0035 is reasonable.
• Check if the sensor is a KTY84 (other sensors are not supported)
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