Siemens SINUMERIK 880 SW 6 Planning Manual page 269

8 Spindle/PLC Interface (DB 31)
8.3 Signals to spindle
SPINDLE OVERRIDE ACTIVE
1 signal: The set spindle (speed) override is taken into account when determining the set
speeds.
0 signal: The set spindle override values are not taken into account. A value of 100 % is
always set.
Note:
The override value is generally set with the switch on the machine control panel.
Example of application:
This signal can be used to enable the speed override switch on the machine control panel
during the test phase of a new NC part program (e.g. with the keyswitch).
SPINDLE OVERRIDE
The spindle (speed) override is taken into account when determining the set speeds for the
spindle if the SPINDLE OVERRIDE ACTIVE signal is set. The override value determines the
percentage of the programmed set speed output to the spindle.
The override value is generally set with the switch on the machine control panel. Refer to the
following table for the assignment of switch positions to the percentage values and their codes.
Position Code
D C B A
1 0 0 0 1
2 0 0 1 1
3 0 0 1 0
4 0 1 1 0
5 0 1 1 1
6 0 1 0 1
7 0 1 0 0
8 1 1 0 0
9 1 1 0 1
10 1 1 1 1
11 1 1 1 0
12 1 0 1 0
13 1 0 1 1
14 1 0 0 1
15 1 0 0 0
16 1 0 0 0
Note:
The percentage values given in the table are standard values which are stored as machine
data. They can be changed if required.
–
8 16
Override value
in %
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
120
©
Siemens AG 1991 All Rights Reserved
05.91
DW K + 1, bit 12
DW K + 1, bit 8 to 11
6ZB5 410-0HE02
SINUMERIK 880 (PJ)