Signal Waveforms Of Function Generator (Sw 3) - Siemens SINUMERIK 840C Installation Instructions Manual

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9 Drive Servo Start-Up Application (as from SW 3)
9.3.3 Signal waveforms of function generator (as from SW 3)
9.3.3
D Square-wave (speed setpoint)
Conditions
Explanation
D Sawtooth (speed setpoint)
9–26
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Signal waveforms of function generator (as from SW 3)
Speed
setpoint
+A
–A
Fig. 9.6
Operating mode
Signal type
E1
E2
T1
T2
A
O
While starting and braking is in progress, the speed setpoint is output with a de-
lay via a filter. The speed setpoint amplitude acts in relation to the set speed off-
set.
The axis/spindle is traversed at the set amplitude during period T1 (Period). The
amplitude is output with the opposite sign during period T2 (pulse width).
Speed
setpoint
+A
O
–A
Fig. 9.7
ManualsBase.com
O
E1
T1
: Speed setpoint
(position controller cycle)
: Square-wave
: Switch-on instant (NC Start hardkey)
: Switch-off instant (e.g. NC Reset)
: Period
: Pulse width
: Amplitude (+/–)
: Speed offset
E1
Siemens AG 2001 All Rights Reserved 6FC5197–jAA50
T2
E2
T1
E2
SINUMERIK 840C (IA)
09.95
10.94
t
t

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