Encoder 2: Hardware Logic Unit Failed; Encoder 2 Drive-Cliq: Telegram Error - Siemens Sinamics S120 Diagnostic Manual

SINAMICS alarms
232813 <location>Encoder 2: Hardware logic unit failed
Message value: Fault cause: %1 bin
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
Acknowledge: PULSE INHIBIT
Cause: The DRIVE-CLiQ encoder fault word supplies fault bits that have been set.
Fault value (r0949, interpret binary):
Bit 0: ALU watchdog has responded.
Bit 1: ALU has detected a sign-of-life error.
Remedy: Replace encoder
232820 <location>Encoder 2 DRIVE-CLiQ: Telegram error
Message value: Component number: %1, fault cause: %2
Drive object: SERVO_COMBI, SERVO_SINUMERIK828
Reaction: OFF1 (IASC/DCBRAKE, NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: A DRIVE-CLiQ communication error has occurred from the Control Unit to the encoder involved.
Fault value (r0949, interpret hexadecimal):
yyxx hex: yy = component number, xx = fault cause
xx = 01 hex:
CRC error.
xx = 02 hex:
Telegram is shorter than specified in the length byte or in the receive list.
xx = 03 hex:
Telegram is longer than specified in the length byte or in the receive list.
xx = 04 hex:
The length of the receive telegram does not match the receive list.
xx = 05 hex:
The type of the receive telegram does not match the receive list.
xx = 06 hex:
The address of the component in the telegram and in the receive list do not match.
xx = 07 hex:
A SYNC telegram is expected - but the received telegram is not a SYNC telegram.
xx = 08 hex:
No SYNC telegram is expected - but the received telegram is one.
xx = 09 hex:
The error bit in the receive telegram is set.
xx = 10 hex:
The receive telegram is too early.
Remedy: - carry out a POWER ON.
- check the electrical cabinet design and cable routing for EMC compliance
- check the DRIVE-CLiQ wiring (interrupted cable, contacts, ...).
See also: p9916 (DRIVE-CLiQ data transfer error shutdown threshold slave)
796
Diagnostics Manual, 07/2010, 6FC5398-8BP40-0BA0
Alarms