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8 Spindle/PLC Interface (DB 31)
05.91
8.2 Signals from spindle
Signal chart
S=0
S=6000
S=2000
t
1
2
3
4
5
1:
Speed limit of selected gear stage, e.g. 5000
2: Maximum chuck speed, e.g. 4000
3:
Programmed S values in main memory
4: PROGRAMMED SPEED TOO HIGH signal
5: SPINDLE IN SET RANGE signal
Example of application:
The PROGRAMMED SPEED TOO HIGH interface signal can be used to interrupt further exe-
cution of the NC program and output a corresponding message.
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
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SPINDLE IN SET RANGE
DW K, bit 13
1 signal:
Actual speed in defined range about set speed (set range).
0 signal:
Actual speed outside set range.
Notes:
•
The set speed is derived from the programmed speed or, in the case of constant cutting
speed (G96), from the calculated speed, taking the speed override and speed limiting
values into account (see PROGRAMMED SPEED TOO HIGH interface signal).
•
The set range is determined by the set speed and the "Spindle speed tolerance"
(MD 444*).
Example of application:
Enabling of axis movements (e.g. by cancelling GENERAL FEED DISABLE interface signal)
after a speed change by setting a new S value or after changing gear
.
8
–
6
©
Siemens AG 1991 All Rights Reserved 6ZB5 410-0HE02
SINUMERIK 880 (PJ)