Siemens SINUMERIK 840D sl Series Diagnostics Manual page 720

Overview of Alarms
Cause: The heatsink temperature sensor in the motor module is short-circuited.
Fault value (r0949, hexadecimal):
Bit 0: Module slot (electronics slot)
Bit 1: Air intake
Bit 2: Inverter 1
Bit 3: Inverter 2
Bit 4: Inverter 3
Bit 5: Inverter 4
Bit 6: Inverter 5
Bit 7: Inverter 6
Bit 8: Rectifier 1
Bit 9: Rectifier 2
Remedy: Contact the manufacturer.
230017 <location>Power module: Hardware current limit has responded too
often
Reaction: OFF2
Acknowledge: IMMEDIATELY
Cause: The hardware current limitation in the relevant phase (see A30031, A30032, A30033) has
responded too often. The number of times the limit has been exceeded depends on the
design and type of power module.
For infeed units, the following applies:
- closed-loop control is incorrectly parameterized.
- load on the infeed is too high.
- voltage sensing module incorrectly connected.
- commutating reactor missing or the incorrect type.
- power module defective.
The following applies to motor modules:
- closed-loop control is incorrectly parameterized.
- fault in the motor or in the power cables.
- the power cables exceed the maximum permissible length.
- motor load too high
- power module defective.
Fault value (r0949, binary):
Bit 0: Phase U
Bit 1: Phase V
Bit 2: Phase W
Remedy: For infeed units, the following applies:
- check the controller settings, if required, reset and identify the controller (p0340 = 2,
p3410 = 5).
- reduce the load, if required, increase the DC link capacitance or use a higher-rating
infeed.
- check the connection of the optional voltage sensing module.
- check the connection and technical data of the commutating reactor.
- check the power cables for short-circuit or ground fault.
- replace power module.
The following applies to motor modules:
- check the motor data.
- check the motor circuit configuration (star-delta).
- check the motor load.
- check the power cable connections.
- check the power cables for short-circuit or ground fault.
- check the length of the power cables.
- replace power module.
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SINUMERIK 840D sl/840D/840Di/810D Diagnostics Guide (DA), 08/2005 Edition
© Siemens AG, 2005. All rights reserved
08/2005