Siemens SINUMERIK 840C User Manual

Page 358

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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

©

Siemens AG 1992 All Rights Reserved 6FC5197- AA50

6–173

SINUMERIK 840C (IA)

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