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6.2.2 Start-up delay
The start-up delay suppresses an error signal as long as the machine is in the
process of starting and has not yet reached its minimum speed� After application
of the operating voltage the start-up delay is active only once�
If the plant is started and stopped frequently, linking the drive and speed monitor
power supplies ensures that the start-up delay is effective each time the machine
is switched on
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6.2.3 Background compensation
With this function a possible predamping of the sensor can be suppressed�
Predamping can occur during installation of the device, for example� Background
compensation of the device adjusts the sensing range so that the sensor goes into
an undamped state and it can detect the object again�
During background compensation there must not be any object in the
desired detection range�
6.2.4 Teach offset
This parameter allows setting of an offset between the taught process value and
the resulting switching value�
Example: Teach offset = 80 % / NO
If a teach process is carried out while a motor is running at a nominal rpm of
3600 pulses/min, the switching point is set to 2880 pulses/min� In the event of
underspeed (<2880 pulses/min) the output switches off�
6.2.5 Prescaler
The prescaler is a divider to calculate the actual rpm as process data value (PDV)
in an application with several cams on an axis�
The measurement limit is reduced by this divider�