Computer Drive Installation Instructions
09.95 6 NC Machine Data (NC MD), NC Setting Data (NC SD)
6.7 Axis-specific MD 2 (axial data 2)
Measuring circuit assignment 2nd measuring system
(as from SW 2)
1388*
Default value Lower input limit Upper input limit Units
0 0
5030000 analog (as from SW 2)
15021000 (as from SW 3)
30021000 (as from SW 5)
–
Active on
Power On
Active: After POWER ON.
Only applies to feed axes.
The second measuring system is defined in the same way as the first measuring system with
MD 200*.
Feedforward control factor 8th parameter set
(as from SW 4)
)
1392*
Default value Lower input limit Upper input limit Units
0 +0 1 000 0.1 %
Active on
NC Stop
This MD has the same meaning as MD 312*, see also functional description of parameter set
switchover.
Position control cycle
1396*
Default value Lower input limit Upper input limit Units
1 1 64 –
Active on
Power On
NC MD 1396* modifies NC MD 155 ”Position controller sampling time”, i. e. the controller can
be slowed down by a factor of 2 to 64.
Permissible values:
1, 2, 4, 8, 16, 32, 64
The following applies:
Position control cycle time = Position control basic cycle x MD 1396*
Interpolation cycle
Conditions: –––––––––––––––––––– >1 (integer)
Axial pos. control cycle
See also MD 466*
P component compensatory controller
1420*
Default value Lower input limit Upper input limit Units
0 0 16 000 1
Active on
NC Stop
Note: As from SW 4, for 8 parameter sets
I component compensatory controller
1424*
Default value Lower input limit Upper input limit Units
0 0 16 000 1
Active on
NC Stop
Note: As from SW 4, for 8 parameter sets
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Siemens AG 1992 All Rights Reserved 6FC5197- AA50 6–173
SINUMERIK 840C (IA)