PD 800 series DPIs and I/O devices are made up of two parts: The Terminal Base Module and the Electronics Device.
The Terminal Base Modules are snap-locked directly on a DIN-Rail and interlocks with neighboring modules to ensure stability.
The Terminal Base Module has two terminals for all the channels for connection to the process signals, respecting the demand for only one wire in each terminal, ensuring a safe and straight forward design- and installation process. One of the two terminals is with the negative supply and the other is the input / output terminal. Having only one wire in each terminal enables that the wiring to/from process signals can be done directly, without the need for any further intermediate terminals.
The Terminal Base provides also a power rail for connections to the power supply, as well as guides for the Light-Link interface.
Power Specifications
Current supplied by Power Rail: Max. 5 A
Current at spade connectors: Max. 10 A
BASE MODULE BM 106
The analogue inputs in the PD850 module are Sourcing Analogue Inputs 4-20 mA (BM101/104).
Base module BM106 differs from BM101 / BM104 in that this Base Module includes a current mirror function, which allows connection of active analogue 4-20 mA sensors/transmitters.
An active analogue 4-20 mA sensor/transmitter can be connected to the PD850 Multi Function by connecting (L+) in the sensor to +24V DC, (Output) the output from the sensor is connected to the analogue I/O terminal and (L-) in the sensor is connected to 24VGND.
Calibration error: @ Tamb. 20 °C..Max. +/- 0.25 % of full scale.
Please see the schematic for details.
