Siemens Sinumerik 840D Series Function Manual page 210

6 Hydraulics Diagnostics
Remedy
Continue program
310 758
Explanation
Response
Remedy
Continue program
6-210
The blocking frequency
S
drive MD 5514: SPEED_FILTER_1_SUPPR_FREQ or
S
drive MD 5210: OUTPUT_VCTRL_FIL_1_SUP_FREQ or
S
drive MD 5213: OUTPUT_VCTRL_FIL_2_SUP_FREQ or
S
drive MD 5268: FFW_FCTRL_FIL_1_SUP_FREQ or
S
drive MD 5288: OUTPUT_FIL_1_SUP_FREQ
must be lower than the reciprocal of two velocity controller clock cycles in
MD 5001: SPEEDCTRL_CYCLE_TIME, i.e. less than
1/(2*MD 5001*31.25 microsec).
Cancel alarm in all channels by pressing RESET. Restart part program.
Axis %1, drive %2 natural frequency > Shannon frequency
%1 = NC axis number
%2 = drive number
The natural frequency of a velocity filter is higher than the Shannon sampling
frequency defined by the sampling theorem.
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.
The natural frequency in Hz of a velocity must be less than the reciprocal of two
velocity controller clock cycles.
Speed filter:
MD 5520 * 0.01 * MD 5514 < 1 / ( 2 * MD 5001 * 31.25 microsec)
S
BSF natural frequency MD 5520: SPEED_FILTER_1_BS_FREQ
S
BSF blocking frequency MD 5514: SPEED_FILTER_1_SUPPR_FREQ
S
Set an identical speed controller cycle MD 5001:
SPEEDCTRL_CYCLE_TIME
Cancel alarm in all channels by pressing RESET. Restart part program.
SINUMERIK 840D/SIMODRIVE 611 digital, HLA Module (FBHLA) - 10.03 Edition
 Siemens AG, 2003. All rights reserved
08.99
10.03