Fdd Parameter Sets (611D); Msd Parameter Sets (611D) - Siemens SINUMERIK 840C Installation Instructions Manual

12 Functional Descriptions
12.27.1 Parameter set switchover (up to SW 3)
Part program
a)
M43
M3 S1000
b)
NCK
parameter set
SERVO
parameter set
Drive
parameter set
a) Spindle gear stage selection through user M function to PLC (M43 in example)
b) Gear stage selection through programming of S value (semi-automatic)

FDD parameter sets (611D)

There is no selection of parameter sets available for feed drives. The PLC control and status
signals (DB 29, DW K + 122, bits 0 - 2; DB 29, DW K + 120, bits 0 - 2) have no effect, but
are still transferred.

MSD parameter sets (611D)

A selection of eight parameter sets is available for a main spindle drive via the PLC control
signals DB31, DW K + 74, bits 0 - 2. The active parameter set is displayed via status signals
DB 31, DW K + 72, bits 0 - 2. The MSD parameter set and NCK gear stages can be linked by
means of bit 4 in MD 522*. If the bit is reset, then the MSD parameter set is switched over
with the NCK actual gear stage. In this case, control bits DW K + 74 have no effect.
*
NC MD 522 . 4 is active only with 523
12–272
Setpoint gear stage
b)
DB 31, DR K+0, bit 0-2
DB 31, DR K+1, bit 0-2
Actual gear stage
NCK
Spindle
Actual gear stage
SERVO
Spindle
Setpoint parameter set
DB 31, DR K+74, bit 0-2
MD 522*, bit 4
611D MSD
DB 31, DR K+72, bit 0-2
Actual parameter set
*
. 0 "Extended parameter set switchover".
© Siemens AG 1992 All Rights Reserved
04.96
PLC
6FC5197- AA50
SINUMERIK 840C (IA)