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Installation
-
Input
Wiring Procedures
30
DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual
Release M
April 2017
Trans-
former
Mother PCB
Number
1 & 2
Alarm/
Digital
Inputs
Ferrite Beads
Fair-Rite 0443164151
Honeywell Part
Number 51197612
or
Steward 28B2024-0A0
(quantity 5)
Control Output
Relays
Alarm Relays
Current Output 1
Slidewire 1
Auxiliary Output
A.C.
Main
Digital Inputs 1 & 2
Transmitter Power
Inputs 1–2
23128
Washer - Quantity 5
Processor
Board
Modbus RS485
Communications
1
2
3
3
3
3
3
3
2
2
2
2
2
3
External Ground Bus Bar
To Earth
Ground
Shield Wiring
1
Recorder grounding, rear of case—Use 3/4-inch braided copper conductor.
2
Use cable fitting to support wiring and hold in place. Place the washer on the inside of
the recorder between the case and the fastening nut to protect the recorder conductive
case coating.
3
Ferrite filter location—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.
Figure 2-11 Ferrite filter locations and shield wiring (CE Mark)
AC line power
Refer to Figure 2-12 and follow the procedure in Table 2-11 to connect the AC line power.
WARNING
Be sure that the line voltage is OFF before connecting the power wires to the recorder
or personal injury could result.
This equipment is suitable for connection to 120/240 Vac, 50/60 Hz, power supply mains. It is the user’s
responsibility to provide a switch and non-time delay (North America), quick-acting, high breaking
capacity, Type F, (Europe) 1/2 A, 250 V fuse(s) or circuit-breaker as part of the installation. The switch or