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Honeywell MPA1
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Document 800-26311_ A - April 2020
Interlock
Actions
Then Execute (Alarm Action) – Specifies the reacting
component’s action when the trigger’s change of state occurs.
Select the action from the available options.
Upon Resuming (Normalcy) – Specifies the reacting
component’s action when the trigger returns to the normal state.
Select the action from the available options.
Following are the available Input Reactor actions in the
drop-down lists:
Unshunt Reactivates the input point.
Shunt Ignores alarms from the input point.
Follow The reacting point (second point) takes on the same
state as the triggering point (first point).
Invert Follow The reacting point (second point) takes on the
opposite state as the triggering point (first point).
No action The reacting point (second point) does nothing in
response to the state change of the triggering point (first point).
No change of state.
Timed Shunt Ignores alarms from the input point for a
specified amount of time.
Following are the available Output Reactor actions in the
drop-down lists:
De-energize Remove energy from an output point or group. On
a system, the normal state of an output point or group is
"de-energized".
Energize The state of an output point or group. Output points
and groups are in a normal state when they are "de-energized". An
energized state means that the output or group is active.
Follow The reacting point (second point) takes on the same
state as the triggering point (first point).
Invert Follow The reacting point (second point) takes on the
opposite state as the triggering point (first point).
No action The reacting point (second point) does nothing in
response to the state change of the triggering point (first point).
No change of state.
Pulse Energizes the output point or group for a specific amount
of time.
Pulse Off Becomes unshunted for the programmed shunt time,
followed by a return to the shunted state.
Configuration Description

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