Siemens Sinumerik 840D sl Diagnostic Manual page 936

Overview of Alarms
SINAMICS-Alarms
Remedy: Reduce the current controller frequency.
233804 <location>Encoder 3: Checksum error
Message %1
value:
Drive object: All objects
Reaction: A_INFEED: OFF2 (NONE)
SERVO: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
VECTOR: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: A checksum error has occurred when reading-out the program memory on the Sensor Module.
Fault value (r0949, interpret hexadecimal):
yyyyxxxx hex
yyyy: Memory area involved.
xxxx: Difference between the checksum at POWER ON and the current checksum.
Remedy: - check whether the permissible ambient temperature for the component is maintained.
- replace the Sensor Module.
233805 <location>Encoder 3: EPROM checksum error
Message %1
value:
Drive object: All objects
Reaction: A_INFEED: OFF2 (NONE)
SERVO: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
VECTOR: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: Internal parameter data is corrupted.
Fault value (r0949, interpret hexadecimal):
01: EEPROM access error.
02: Too many blocks in the EEPROM.
Remedy: Replace the module.
233806 <location>Encoder 3: Initialization error
Message %1
value:
Drive object: All objects
Reaction: A_INFEED: OFF2 (NONE)
SERVO: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
VECTOR: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
Acknowledge: PULSE INHIBIT
Cause: The encoder was not successfully initialized.
Fault value (r0949, interpret hexadecimal):
1, 2, 3: Encoder initialization with the motor rotating.
Remedy: Acknowledge the fault.
233811 <location>Encoder 3: Encoder serial number changed
Message -
value:
Drive object: All objects
Reaction: A_INFEED: OFF2 (NONE)
SERVO: OFF1 (NONE, OFF2, OFF3)
VECTOR: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009