Sensaphone SCADA 3000 Users manual - Manual (Page 48)

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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: