Siemens SINUMERIK 840C - Manual (Page 350)

09.95 6 NC Machine Data (NC MD), NC Setting Data (NC SD)
6.7 Axis-specific MD 2 (axial data 2)
Compensation time constant quadrant error compensation
(SW 2 and SW 3)
1236*
Default value Lower input limit Upper input limit Units
0 0 16 000 0.1 ms
Active on
NC Stop
1st compensation time constant 3) 1236*
Default value Lower input limit Upper input limit Units
150 0
16 000
99 999 999 (as from SW 4.4)
0.1 ms
Active on
NC Stop
MD 1236* defines the recovery time for the compensation setpoint pulse when operation is
without its adaptation. MD 1236* applies to neural and conventional quadrant error
compensation. If the adaptation of the recovery time constant (neural QEC only) is selected
(MD 1812*, bit 2 = 1), MD 1236* defines the filter time constant in the middle of the working
range, MD 1364* defines the value for acceleration 0.
Minimum compensation (as from SW 1) 1240*
Default value Lower input limit Upper input limit Units
0 0 16 000
0.01 % 2)
0.1 (mV)
Active on
NC Stop
See Section Functional Descriptions for installation of the friction feedforward control function.
Range limit 1 1244*
Default value Lower input limit Upper input limit Units
0 0 16 000 100 (units MS/s 2 )
Active on
NC Stop
Range limit 2 1248*
Default value Lower input limit Upper input limit Units
0 0 16 000 100 (units MS/s 2 )
Active on
NC Stop
Range limit 3 1252*
Default value Lower input limit Upper input limit Units
0 0 16 000 10000 (units MS/s 2 )
Active on
NC Stop
Smoothing time constant (SW 2 and higher) 1256*
Default value Lower input limit Upper input limit Units
0
60 3)
0
16 000
99 999 999 3)
MS
Active on
NC Stop
See Section entitled ”Functional Descriptions” for installation of the quadrant error
compensation function.
_______
1) As from SW 2
2) As from SW 3
3) As from SW 4
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50 6–165
SINUMERIK 840C (IA)