Instruction manual

ECLIPSE OMEGA MATRIX INSTRUCTION MANUAL
2-12
MAIN ALARM LIGHT
An alarm condition triggers the following events:
• The red main alarm light flashes.
• The matrix’s internal alarm buzzer sounds.
• Any installed alarm relay outputs switch to active (the normally open contact
closes and the normally closed contact opens). When the alarm relay activates,
it can cause an externally connected device like a light or buzzer to switch on.
• One of the six auxiliary red alarm lights may go on to more precisely indicate
the source of the alarm condition. (These lights are discussed in further detail
later in this section.)
ALARM RESET BUTTON
When you press the alarm reset button, the following events take place, even if
the alarm condition has not been corrected:
• The internal audible alarm buzzer stops buzzing.
• Any wired relay contacts return to their inactive state. If these relays are
connected to external alarm lights or alarm buzzers, those lights or buzzers
shut off.
If the original alarm condition still exists, the red main alarm light on the matrix’s
front panel continues to flash. The red main alarm light only stops flashing when
all original sources triggering the alarm are corrected.
If a new alarm condition or conditions occur before the original alarm conditions
are corrected, the internal buzzer and relay contacts will not reactivate. They will
only reactivate after all original alarm conditions are corrected.
AUXILIARY ALARM LIGHTS
When an alarm condition occurs, any of the six auxiliary alarm lights may switch
on, in addition to the main alarm light, to help you diagnose the alarm
condition. The following sections describe the six auxiliary alarm lights.
External Alarm (“Ext Alarm”)
The “external” alarm (labelled “EXT ALARM”) light switches on to indicate that
an alarm condition has triggered the built-in relay outputs to turn on any
externally installed alarms such as lights or bells. You connect the external alarm
to the matrix through the 9-pin D-type connector on the matrix’s rear panel
labeled “Alarm I/O.”
Temp Alarm
The red “temp” alarm light switches on to indicate one or both of the following:
• The active CPU card has detected a temperature in the matrix above a
threshold.