Intended Use - Pepperl+Fuchs HID2891 Manual

Frequency Converter HiD2891
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Intended use

This device is used to transmit and convert signals between field devices and the process control
system/the control unit.
output with an open collector and is converted into an analog output signal proportional to the input
frequency.
The frequency alarm and error detection are reported via the relay output or error bus output.
The parameters of the analog output can be set to create a current sink or current source or as voltage
with two different voltage ranges. The device can be adjusted with the DIP switches or by control
program PACTware
The device is suitable for connecting field devices used in potentially explosive areas. In this device,
the field circuits are intrinsically safe and galvanically separated from the non-intrinsically safe circuits.
The device constitutes the electrical separation between the potentially explosive (field side) and the
safe area (process side) of a plant. The intrinsically safe input (field side) is securely separated in
conformity with EN 50020 from the output, programming input, and the supply (process side).
For more information (on certificates, data sheets and the instruction manual), please refer to our
website at www.pepperl-fuchs.com/pa (entry in product search: HiD2891).
The HiD2891 frequency converter is a 1-channel, bus-
powered device. It transfers and converts the input
frequency of a large number of signals (mechanical
contact, proximity switches, magnetic encoders, current
or voltage signal) from the potentially explosive area into
signals for the safe area.
The input signal is transferred to an insulated transistor
TM
.
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