Automated Logic InterOP8500 Технические инструкции - Страница 11

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1. Turn the Johnson panel power switch off.

2. Determine the type of signal received by

the field termination board. Consult the

Johnson Controls manuals if necessary.

The InterOP8500 must be configured to

receive the same type of input as the

previously removed Johnson boards.

3. Set the InterOp8500 jumpers as follows:

• For RTD mode insert a jumper for the

individual input. The jumpers are

located along the lower right side of the

InterOP8500 board (see Figure 13).

NOTE

NOTE If using a solid-state current

switch on a digital input, the resistance

must drop low enough for the module to

recognize it.

• For voltage and potentiometer mode,

remove the jumpers. (Current mode can

be configured by adding an external

As specified by the

sensor manufacturer.

Isolated

DC Power

Supply

XX VAC

120 VAC

ungrounded

Revised 7/10/01 • InterOP8500

Field Termination

Board

Sensor

4-20mA

250 ohm

Transducer

resistor

Figure 14. Analog Input Wiring for 4-20 mA Signal

sense resistor. For 4-20mA use a 250

ohm resistor Figure 14). Turn the

InterOP8500's power switch on.

Unsw itched Inputs

Jum p er in P la ce =

RTD M o d e

Sw itched Inputs

Jum p e r R e m ove d =

V oltag e Mode

Figure 13. Analog Input Jumpers

Connect to Analog Input

Connect to Analog Common (unswitched)

Grip

He re

InterOp8500