Switching Thresholds; Broad-Range Power Supply - Knick ProLine P52000 VPD Manuel Utilisateur

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Function Description
The device features 3-port isolation: complete galvanic isolation between
the input, output and power supply.
The housing is made from silicone-free materials. Its insulation properties
are achieved by potting with a silicone-free polyurethane casting resin.

Switching Thresholds

Multi-range models provide a rotary switch for selecting the switching
threshold. Microcontrollers in the voltage presence detector detect the
switch positions of rotary switch S1 and convert them into corresponding
control signals for the limit values. Microcontrollers monitor the voltage
presence detector functions. For monitoring with clearly specified switching
threshold, fixed-range models without rotary switches are used.

Broad-Range Power Supply

The voltage presence detectors of the ProLine product line have a broad-range
power supply that can be operated over a wide range of AC or DC voltage. It
allows the voltage presence detector to be supplied with power directly from
the accumulator battery, for example.
Power Good Output
The product has an optional "Power Good" output to signal that it is ready for
operation.
For the Solid State Relay high Z open output status, it is possible to differen-

tiate between No power supply and Input voltage above threshold value, see
page 65.