Siemens SINUMERIK 840D Diagnostics Manual page 623

10.04
Program Continuation:
310505
Parameters:
Definitions:
Reactions:
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Diagnostics Guide (DA), 10.04 Edition
• MD_1179 $MD_INVERTER_DERATING_ASYN (derating factor at 8kHz)
• MD_1175 $MD_INVERTER_THERM_CURR_ASYN (limit current power section for PE
MSD)
• MD_1177 $MD_INVERTER_RATED_CURR_ASYN (limit current power section for PE
MSD).
Switch control OFF - ON.
Axis %1 drive %2 measuring circuit error of absolute track, code %3
%1 = NC axis number
%2 = Drive number
%3 = Fine error coding
• Absolute encoder (EQN 1325) Monitoring of the encoder hardware and the EnDat inter-
face
• More accurate diagnostics via MD5023: $MD_ENC_ABS_DIAGNOSIS_MOTOR (diag-
nostics 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
- Mode group not ready.
- The NC switches to follow-up mode.
- Channel not ready.
- NC Start disable in this channel.
- Interface signals are set.
- Alarm display.
- NC Stop on alarm.
- Channel not ready.
1 Alarms
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