Technology Option F01 08.2012
6SE7087-6QX70 (Version AN) Siemens AG
9-6 Compendium Motion Control SIMOVERT MASTERDRIVES
• Teach-in: allows the current position to be saved in an NC block
in setup mode
• Velocity, acceleration and time override
• Collision monitoring via external input
• Simulation mode for testing automatic programs without a motor,
e.g. for recording the position setpoint curve with M function
simulation
♦ Roll feed [830]:
• Automatic cut-to-length feature for presses, punching machines
and cross-cutters in start/stop mode
• Definable velocity/ acceleration profile of traversing curve. This
achieves optimum cycle times with the lowest possible material
wear and slippage.
• Switchover possible between external machine encoder and
motor encoder (at standstill)
• The loop count (number of cut-to-length processes) can be
programmed.
Positioning drives in the following fields are typical applications of
MASTERDRIVES MC:
♦ Woodworking machines
♦ Roll feeds for presses
♦ Packaging machines
♦ Drive tasks in the glass, brick and tire industries and in general
mechanical engineering applications
The following figure shows an example application for the automatic
function on an automatic drilling machine in the woodworking industry:
0 mm
100 mm
B
A
C
D
E
150 mm
170 mm
220 mm
250 mm
190
1000
2000
1500
V
[mm/min]
t [s]
A B C ED A
N5 N10 N15 N20 N25
NC-Program
N5 X150 F2000 G44 D1: Block no. 5: move to position
150 mm at velocity 2000 mm/min,
save tool offset (G44) in D1 (100 mm)
N10 X170 F190: Block no. 10: move to position
170 mm at velocity 190 mm/min
N15 X220 F1000: Block no. 15: move to position
220 mm at velocity 1000 mm/min
N20 X250 F190: Block no. 20: move to position
250 mm at velocity 190 mm/min
N25 X 0 F1500 D0: Block no. 25: return to initial position
0 and deselect tool offset (D0)
Drill
Fig. 9-5 Example of an automatic program
Applications for the
positioning function
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