Siemens SINUMERIK 840C Installation Instructions Manual page 648

09.95
10.94
Conditions
Explanation
D Staircase (speed setpoint)
Conditions
Explanation
D Noise signal
Note
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SINUMERIK 840C (IA)
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Operating mode
Signal type
E1
E2
T1
A
O
The speed setpoint is output with a delay via a filter during braking.
The speed setpoint amplitude acts in relation to the speed offset.
Speed
setpoint
+A2
+A1
–A1
–A2
Fig. 9.8
Operating mode
Signal type
E1
E2
T1
A1
A2
O
Starting and braking are implemented with a delay via a filter. The amplitude
changes in cyclical operation are output in step form.
Amplitudes A1 and A2 are calculated symmetrically to the offset line.
This waveform corresponds to that of a square-wave signal, but with statistically
varying pulse width and period.
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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)
: Speed setpoint
(position controller cycle)
: Sawtooth
: Switch-on instant (NC Start hardkey)
: Switch-off instant (e.g. NC Reset)
: Period
: Amplitude (+/–)
: Speed offset
O
E1
: Speed setpoint
(position controller cycle)
: Staircase
: Switch-on instant (NC
Start hardkey)
: Switch-off instant (e.g. NC Reset)
: Period
: Amplitude 1 (+/–)
: Amplitude 2 (+/–)
: Speed offset
T1
E2
t
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