Hardware Installation
28 SCX 920 Installation Guide
Powering Up the SCX 920
Warning
Before powering up the controller, be sure the board is jumpered for the
correct input voltage.
Before you proceed, be sure the following are correct:
1. Be sure you have jumpered the proper input voltage.
2. Be sure the battery is connected.
3. Be sure the AC power is wired properly. Check to be sure all three
wires have been connected.
4. Be sure the controller has a true earth ground.
5. Be sure you have used the proper cables and wires and correct
lengths.
6. Be sure you have properly labeled the tag with the name of the
controller before removing it.
7. Be sure the Infinet cable has been properly wired.
8. Be sure the Infinet cable shields are properly connected.
If you have completed all previous sections in this manual, you are now
ready to power up the controller.
Turn on the AC power source (or close the power connection) and the
controller starts automatically. The following occurs (also occurs when
you press RESET):
1. If the controller has been off, relays remain off. If you have pressed
RESET, relays de-energize.
2. If the controller has been off, analog outputs remain off. If you have
pressed RESET, analog outputs are set to 0 V.
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