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17.2 Relay Channel (and Relay Settings)
Follow these steps to configure the relay operation (see Figure 17-3):
1. To enable a relay, check the box labeled On. To disable the relay, uncheck the box.
2. Notice the channel number (1 through 4).
Figure 17-3) Relay channel settings
3. Name the relay channel to identify the relay on the Maintenance display.
4. Set the normal position of the relay armature. For example, relays that are “Normally
Energized” will de-energize to trip the relay, and when the rack loses power. Relays that are
“Normally De-Energized” will energize to trip but will not energize (trip) when the rack loses
power (see section 9.6.1).
5. Set the latching state. Latched relays will hold their state until a RESET event occurs.
NOTE
Configure modules and channels prior to configuring relay voting logic.
Relays will transition to the de-energized state on loss of power, during monitor re-
configuration, or during a firmware upgrade.
If your machine is running, relays must be externally isolated from trip circuits before servicing
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