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Installation
-
Input
Wiring Procedures
Release M
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
29
April 2017
2.6 Input Wiring Procedures
Wiring the recorder
Using the information contained in the model number, select the appropriate wiring diagrams from the
figures listed below and wire the recorder accordingly.
Wiring Requirements
Refer to
Ferrite Filter Locations
AC Line Power
Thermocouple, RTD, Radiamatic, mV, or 0
–5 Vdc Inputs
4
–20 mA Inputs
0
–10 Vdc Inputs
4
–20 mA Current Outputs or Auxiliary Outputs #2 and #3
Position Proportional Control Outputs
Relay Control Outputs
– Time Proportioning
Alarm #1 and #2 Outputs and Digital Inputs
Alarm Outputs #3, #4, #5, and #6
RS485 Modbus Communications
Auxiliary Output
Ferrite filter locations (CE Mark)
Inside of the enclosure, install ferrite suppression filters on all wires connected to the recorder. ©Fair-Rite
Products Corp. part number 0443164151, or equivalent, shall be installed as shown in Figure 2-11, one
filter for each circuit group. Cable with an outer jacket diameter larger than 6.7 mm (0.264 in.) may require
the outer jacket to be removed to fit the required one turn in the filter, or the selection of a different cable.
Shield Wiring
The shield wires of all cables, except the Modbus RS485 communications cable, should be tied to earth
ground at the recorder end and to earth ground through a .0047µF Capacitor at the other end of the cable.
An example of shield wiring to an external ground bus bar is shown in Figure 2-11.