4.5. Configuring Relays

The Common Alarm Relay (or Main Board Relay) has three (3) configuration parameters that allow the relay:

• to be assigned to a fault condition or status point
• to be assigned a delay period before activating the relay after the alarm or status condition changes states
• to operate in a latching or non-latching mode
  

By default, the Main Board Relay is configured to indicate the status of the Common Alarm, but this may be changed to indicate the status of any ATevo alarm or status state.

If this relay is configured to be ‘latching’, it will change to the active state after the configured time delay, and remain in the active state even if the alarming condition is no longer present. Latched relays must be cleared manually to ensure that they are acknowledged. See Section 9.6 for instructions on how to clear (or reset) latched relays.

Clicking on each toggle below will reveal a screenshot of how each relay setting is changed:

Common Alarm Relay Configuration

MENU > RELAYS > ‘Relay Configuration’

Relay Fault Condition

MENU > RELAYS > ‘Relay Configuration’ > ‘Fault’ > select desired condition

Relay Latching Status

MENU > RELAYS > ‘Relay Configuration’ > ‘Latching’ > select desired status

Relay Time Delay

MENU > RELAYS > ‘Relay Configuration’ > ‘Delay’ > set number of seconds