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Input configuration, Correct jumper positioning, Normally open/normally closed dry contacts – Sensaphone SCADA 3000 Users manual User Manual

Page 48: Input configuration -2

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SCADA 3000 User’s Manual

Figure 1: Removing terminal blocks

INPUT CONFIGURATION

Correct Jumper Positioning

It is extremely important that you position the jumpers correctly on the SCADA 3000. The

input jumpers are located directly behind the Input terminal strip. There is one jumper for

each input (16 total). Note that each jumper connects four pins. If you look closely at the

jumpers, you will note that each one reveals two thin metal strips. When the jumper is fit into

place, the strips contact the header pins corresponding to the input you are setting. The strips

must be positioned vertically, not horizontally, for your inputs to work. (See illustration

below.) Please be particularly careful when positioning the jumpers.

Figure 2: Correct Jumper positioning

Normally Open/Normally Closed Dry Contacts

Dry contact sources consist of relays or switches that are isolated and have no external volt-

age applied. These devices can be connected directly to the input terminals without regard for

polarity. Note that Solid State outputs may be polarity sensitive. If using Solid State outputs,

observe the polarity markings next to the terminal strip on the SCADA 3000. Choose an input

and connect the wires to the corresponding screw terminals for that input. The configuration

jumper should be set to the TMP/DRY position. The following figure shows how to connect a

dry contact sensor: