Honeywell MS-2 User Manual download pdf (Page 41)

Operation Operating Instructions

MS-2/MS-4 PN 51512:E 01/18/05 41

Zone Supervisory LED

A yellow LED for each zone that blinks if the zone has been programmed for

supervisory and a supervisory condition exists on the corresponding zone. It turns on

steady when the Acknowledge or Alarm Silence button is pressed.

Note that an I

smoke detector freeze condition is displayed as a supervisory condition.

The zone does not have to be programmed as a supervisory for this to occur.

Zone Trouble LED

A yellow LED for each zone that blinks to indicate that a trouble exists on the

corresponding zone. It turns on steady when the Acknowledge or Alarm Silence button

is pressed.

Zone Maintenance LED

A yellow LED for each zone that blinks to indicate that a I

smoke detector on the

corresponding zone is dirty or in need of maintenance. It turns on steady when the

Acknowledge or Alarm Silence button is pressed.

Earth Fault LED (on main circuit board)

A yellow LED that blinks to indicate a ground fault condition on the system. A ground

fault occurs when zero impedance between the FACP and earth ground exists. The

LED turns on steady when the Acknowledge or Alarm Silence button is pressed.

Battery Fault LED (on main circuit board)

A yellow LED that blinks to indicate a low battery or no battery condition on the FACP.

It turns on steady when the Acknowledge or Alarm Silence button is pressed.

Charger Fault LED (on main circuit board)

A yellow LED that blinks to indicate a battery charger fault. It turns on steady when

the Acknowledge or Alarm Silence button is pressed.

4.4 Operation

Normal mode is the standard mode of operation. In this mode, the panel continuously

monitors system status. When no alarm or trouble conditions exist, the control panel

will be in the following state:

• all LEDs will be off (except the AC Power LED)

• the Notification Appliance Circuits will be off

• all relays are in their normal state

• the onboard piezo sounder will be off

• I3 smoke detectors will be polled for maintenance and freeze conditions on initial

entry into Normal mode. Thereafter, each device will be polled every hour for

freeze and every four hours for maintenance conditions

All alarm and system trouble conditions are annunciated on the control panel’s LEDs.

Note: To ensure that the system is functioning properly, the FACP will perform a freeze

check five minutes after the panel is reset, followed by a maintenance check. If there is

no freeze or maintenance condition, the panel will continue to monitor for freeze

conditions every hour and maintenance conditions every four hours.

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Honeywell MS-2 User Manual Page 41

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