10.03
6-197
Siemens AG, 2003. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
Bit no. NoteMeaning
Bit 8 Encoder cannot be used
Illegal assignment between absolute and incremental
tracks
Bit 9 C/D track on ERN1387 encoder faulty or EQN encoder
connected
Bit 10 Protocol cannot be interrupted
Bit 11 SSI level in data line detected
Bit 12 TIMEOUT while reading measured value See 2)
Bit 13 CRC error (evaluate bit 7 as well) See 1)
Bit 14 Incorrect IPU submodule for direct measuring signal See 3)
Bit 15 Encoder faulty see 2) 3)
1)
CRC error: Bits 7 and 13 Meaning:
0 1 CRC error from SIDA-ASIC
1 0 Check byte error
1 1 Error in correction of absolute track via
increment track
2) Bit 12 and Bit 15: Zero-level monitoring SSI
3) Bit 14 and Bit 15: Idle-level monitoring SSI
Mode group not ready.
Under certain circumstances it can be switched over across the entire channel
via MD.
Channel not ready.
NC start disable.
NC stopped in response to alarm.
The NC switches to follow-up mode.
Alarm display.
Interface signals are set.
Please inform the authorized personnel/service department.
S Check encoder, encoder leads and connectors between drive motor and
611D module: check for temporary interruptions (loose contact) - e.g.
caused by movements in cable tow.
S Replace motor and cable if necessary
S Incorrect cable type
S Controller hardware not suitable for EnDat interface (e.g. closed-loop control
module with EPROM)
Switch control system OFF and ON again.
Response
Remedy
Continue program
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