Sinumerik Alarm 310505 Axis %1 drive %2 measuring circuit error of absolute track, code %3

Sinumerik Alarm 310505 Axis %1 drive %2 measuring circuit error of absolute track, code %3

Parameters:
%1 = NC axis number
%2 = Drive number
%3 = Fine error coding

Definitions:
• Absolute encoder (EQN 1325) Monitoring of the encoder hardware and the EnDat interface
• More accurate diagnostics via MD5023: $MD_ENC_ABS_DIAGNOSIS_MOTOR (diagnostics for absolute track on motor measuring system).
• Bit nos. and their meaning:
• Bit 0 Lighting failed
• Bit 1 Signal amplitude too small
• Bit 2 Code connection error
• Bit 3 Overvoltage
• Bit 4 Undervoltage
• Bit 5 Overcurrent
• Bit 6 Battery change necessary
• Bit 7 CRC error (evaluate bit 13), note: see below
• Bit 8 Encoder cannot be used, assignment of absolute track to incremental track not allowed
• Bit 9 C/D track for ERN 1387 encoder incorrect or EQN encoder connected
• Bit 10 Log cannot be aborted
• Bit 11 SSI level detected in data cable
• Bit 12 TIMEOUT while reading measured value
• Bit 13 CRC error (evaluate bit 7), note: see below
• Bit 14 (810D) Wrong IPU submodule for direct measuring system
• Bit 15 Encoder defective
• CRC error: CRC error bit 7 and bit 13, meaning:
• Bit 7: 0, bit 13: 1 CRC error from SIDA-ASIC
• Bit 7:1, bit 13: 0 Control check byte error
• Bit 7: 1, bit 13: 1 Error on correction of absolute track by incremental track
• Bits 12 and 15: Zero level monitoring SSI
• Bits 14 and 15: Idle level monitoring SSI

Reactions:
– Mode group not ready.
– Channel not ready.
– Channel not ready.
– NC Start disable in this channel.
– NC Stop on alarm.
– The NC switches to follow-up mode.
– Alarm display.
– Interface signals are set.

Remedy:
• Check encoders, encoder lines and connectors between drive motor and 611D module. Check for temporary interruptions (loose contact) caused, for example, by movements in trailing cable. If necessary, replace the motor cable.
• Incorrect cable type
• Controller hardware not suitable for EnDat interface (e.g. control module with EPROM)

Program Continuation:
Switch control OFF – ON.