ORYX202 ORYX204 ORYX208 Conventional Fire Panels
– INSTALLATION & OPERATION MANUAL
PRMAN-0047 ORYX200 S21 Fire Panel Range Rev 02.00 220224.docx
E&OE
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Cut-Off Mode
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If the current draw exceeds 2.5 A, the General Fault Relay and the 27.5 V DC output LED will be
on solid.
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The output will shut down immediately and will attempt to restore every 30 seconds.
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When current draw is reduced to below 2.5 A, the 27.5 V DC output will restore automatically
into OVERLOAD MODE condition after 30 seconds. General Fault Relay remains ON.
‒
When current draw is reduced to below 1.8 A, the 27.5 V DC output will restore automatically
into BOOST MODE condition after 30 seconds. General Fault Relay remains ON.
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When current draw is reduced to below 1.2 A, the relay and charger will restore automatically
within 30 seconds. The Output fault LED will be solid on and requires a hard or soft reset to
clear.
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When there is a short across positive and negative of the output, all LED indications will
illuminate, and the General Fault relay will activate. The output will attempt to reset itself every
four seconds until the fault is cleared.
1.8.4.3
PSU INFORMATION INDICATIONS
◼
Load Test
The Load Test LED is on for 15 seconds whilst test is conducted, battery charger is switched off
(successful test = Normal, failed test = Battery Fault). First load test takes place 10 minutes after start-up and
every 4 hours thereafter.
◼
CPU Running
The CPU Running LED will flash once every second to indicate that the CPU controlling the PSU2A
functionality, is healthy. It the LED stops flashing, or flashes irregularly please return the product to the
supplier.
1.8.5
FAULT RELAYS/OUTPUTS
The power supply is provided with two potential free relays dedicated as follows:
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AC Supply Fault Relay
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Common PSU Fault Relay
In addition, a 26 V DC Supply Fault output is provided to utilise for fault monitoring to an opto input. This output
follows the condition of the General Fault relay. If a general fault is present on the power supply, the 26 V DC
will drop to 0 V DC
. Connect the opto input’s positive to Supply Fault, and the negative to output GND. Refer to
Figure 21
PSU Relays