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Parameterization VLM60 User Manual
ASTECH GmbH page 13
Holdtime
Serves to set a time period in which the last detected velocity value continues to be output on the pulse
output. After that, zero is output.
ho ldtime [n] n = 10 ... 65535 (unit: ms) default: 250
If signal failures occur during a measuring process, this parameter can be used to prevent the pulse output
from being continuously switched on and off. The value for Holdtime should normally be greater than or equal
to Average.
Illumination
Serves to control the intensity of the white light LED. A fixed value or automatic mode can be set.
illu mination [n] n = 0 ... 30 – fest, a – automatic default: a (automatic)
The parameter should be left at the Automatic setting. If the parameter is set incorrectly, measurement
failures due to over- or under-control are possible.
PO1Factor
Used to set a scaling factor for the first pulse output (see chapter 2.2). With a value of 1, a frequency of 100 Hz
is output at a speed of 0.1 m/s.
po1f actor [f] f = -2500.0 ... 2500.0, <> 0 default: 1.000000
The factor corresponds to the specification pulses per millimeter of object movement.
PO1Hold
Serves to set the hold behavior (freezing) of the first pulse output. A time dependency can be set (in 100 ms
steps) or a dependency on the switching input (TRIGGER). With time dependence, the set time is added to
Holdtime . With the dependence on the switching input, the last velocity value is held regardless of a running
measurement or a signal failure as long as the switching signal is set.
po1h old [n] n = 0, 3, 4, 10 ... 255 default: 0
0 off (no freezing of the pulse output)
3 HIGH-Level at switching input (TRIGGER)
4 LOW-Level at switching input (TRIGGER)
10 1 s + holdtime
…
255 25,5 s + holdtime
PO1On
Serves to set on or off the first pulse output.
po1on [n] n = 0 (off), 1 (on) default: 1
This parameter does not influence the measuring activity, but only the activity of the first pulse output.