1 Introduction 07.90
1.5 Measuring principle
1.5 Measuring principle
1.5.1 Probe signal evaluation
Two inputs for connecting touch trigger probes are provided on the SINUMERIK interface
module.
If a measuring point is to be approached, a travel command is transmitted to the position
control loop and the probe is moved towards the measuring point. A point behind the expected
measuring point is defined as the position setpoint value. The actual axis value at the time of
the switching position is measured and the drive is stopped as soon as the probe makes
contact. The remaining ”distance to go” is deleted.
Fig. 1.15 Probe signal evaluation
NC
Probe
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a
Measuring
cycle
Delete
distance
to go
Actual
value
Actual value
measurement
Position control
1–14 © Siemens AG 1990 All Rights Reserved 6FC5197- AB70
SINUMERIK 840/850/880 (BN)
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