Omni30 User Manual
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© Omniflex
UMC1620AR04
5. OPERATION
5.1 Power-up
When power is applied to the Omni30, the unit commences an automatic, built-in circuit test
routine. This results in the unit sounding the audible for approximately half a second followed by
the cyclic illumination of each lamp in turn starting at lamp 1 to the last lamp and back to 1 again
etc. in a “marching sequence”.
If no internal faults are detected in the unit, then this test mode display continues until the ACCEPT
Pushbutton is pressed or until an input changes to the alarm state.
If an internal fault is detected, then the unit will display a fault indication by continuously flashing
one of the lamps. If this occurs, then the unit must be sent for service.
If a new alarm occurs while the Omni30
is in this test routine, the unit will immediately revert to its
normal mode of operation and will deal with the alarm state according to the pre-selected alarm
sequence.
5.2 Normal Operation
During the normal operation, the Omni30 will deal with any alarm states according to its pre-set
alarm sequences. (The instructions for setting-up these sequences are given in section 4.3).
Section 7 provides detailed block diagrams for the function of each alarm sequence.
When an alarm condition occurs and the horn sounds, the operator should depress the relevant
pushbuttons, where necessary, according to the pre-selected alarm sequence.
When the Omni30 is put into its test routine by depressing the TEST pushbutton, any existing
alarm states are “remembered” and the alarm annunciator will revert to its previous state when it
returns to its normal mode of operation.
If a new alarm state occurs while the Omni30 is performing its test routine, the unit will immediately
revert to its normal mode of operation and deal with the alarm state according to the pre-selected
alarm sequence.
5.3 Test Functions
5.3.1 Overview of the Test Functions
The Test button operates as a combined lamp test and circuit test function.
No information is lost during the entire test routine, and each alarm display returns to the
exact state it was in before the test.
5.3.2 Pressing the Test Button
When the Test button is pressed, the unit checks the results of its regular full circuit test, and
if all checks performed pass, then a conventional lamp test is performed, by illuminating all of
the lamps while the Lamp Test Pushbutton is held down. When the Test pushbutton is
released, the Omni30 reverts to the state it was in before the Test button was pushed.
If the circuit Test fails then the unit enters its “marching sequence” test routine described in
Section 5.3.5 and the test failure code will be displayed by flashing one of the lamps
continuously.
In this way, the display/annunciator Test button acts both as a Lamp Test and Circuit
Function.
