Siemens SINUMERIK 840C Installation Instructions Manual page 293

6 NC Machine Data (NC MD), NC Setting Data (NC SD)
6.6.1 General MD bits (general bits)
NC MD 7
5028
(as
from
SW 6)
Mirroring of the axis in question of the 4th machine coordinate system at the coordinate origin
opposite the collision monitoring coordinate system.
Bit 0-2=1 Mirroring of the axis in question
Bit 0-2=0 No mirroring
Active:
NC MD 7
5029
Bit 0 The dynamic limit switch for ELG following axes can be operated without
dead-time compensation in certain cases. Not the actual value but the
precalculated "actual value" is used for calculation. The function is activated
via MD 5029.0 and axis-specifically via MD 584*.1.
NC MD 7
CSB CSB
input 7 input 6
5030
signal from signal from
as from
UPS: power UPS: power
failure failure
SW 3
Bit 0-7=1 Definition of the CSB input used for the uninterruptible power supply (UPS)
signal "Power failure"
Bit 0-7=0 UPS signal not active in NCK
Active: immediately
Note:
See also Section 12.35 in the Functional Description.
NC MD 7
5038
5039
Default value: 0000 0001
Because a SINUMERIK 840C is always equipped with a PLC (135 WB), bit 0 of MD 5038 must
always be set to 1 and bits 1 to 7 to 0. With 1 in bit 0 of MD 5039, the control indicates that
the PLC has been recognized.
Active: On POWER ON
6–108
Bit No.
6 5 4
Power On
Bit No.
6 5 4
Bit No.
6 5 4
CSB CSB
input 5 input 4
signal from signal from
UPS: power UPS: power
failure failure
Bit No.
6 5 4
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Siemens AG 1992 All Rights Reserved
3 2 1
4th MCS 4th MCS
mirroring Z mirroring Y
3 2 1
3 2 1
CSB CSB CSB
input 3 input 2 input 1
signal from signal from signal from
UPS: power UPS: power UPS: power
failure failure failure
3 2 1
SINUMERIK 840C (IA)
01.99
0
4th MCS
mirroring X
0
Dynamic
software
limit switch
for following
axes (as
from SW 5)
0
CSB
input 0
signal from
UPS: power
failure
0
Declaration
of PLC
PLC config.
display
6FC5197- AA50