Siemens Sinumerik 840D Series Function Manual page 192

6 Hydraulics Diagnostics
300 508
Explanation
Response
Remedy
Continue program
300 511
Explanation
Response
Remedy
Continue program
6-192
Axis %1, drive %2 zero mark monitoring motor measuring system
%1 = NC axis number
%2 = drive number
Error in modulo (16/10) incrementation of encoder mark number on zero marker
crossings. Increments have been lost or extra increments trapped.
The alarm can be reconfigured using MD 11412:
ALARM_REACTION_CHAN_NOREADY (channel not ready).
Mode group not ready.
Under certain circumstances it can be switched over across the entire channel
via MD.
Channel not ready.
NC stopped in response to alarm.
NC start disable.
The NC switches to follow-up mode.
Alarm display.
Interface signals are set.
Please inform the authorized personnel/service department. Use original
Siemens pre-assembled encoder cables (high degree of shield protection).
Check encoder, encoder cable for cable break and shield bonding point. Check
shielding surface on front panel (top screw), replace closed-loop control mod-
ule. Check distance between gear wheel and sensor on gear wheel encoders. If
a BERO is installed, it is not the BERO signal which is monitored, but the zero
marker of the encoder.
Switch control system OFF and ON again.
Axis %1, drive %2 measuring function active
%1 = NC axis number
%2 = drive number
The measuring function (e.g. frequency response measurement) was active as
the power supply was switched on (power-up). The measuring function may be
have been started illegally internally.
NC not ready.
Under certain circumstances it can be switched over across the entire channel
via MD.
Channel not ready.
NC stopped in response to alarm.
NC start disable.
The NC switches to follow-up mode.
Alarm display.
Interface signals are set.
Stop the measuring function
Reset NCK
Switch control system OFF and ON again.
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
 Siemens AG, 2003. All rights reserved
02.99
10.03