Shield Aura - Ground Trouble Indication; System Power; Standby and Alarm Current; 5.25 a Power Supply

Ground Trouble Indication
A ground trouble indication occurs on the Aura Fire Alarm ControlPanel when 30K Ohms or less exists between
the ground and either DC RTN or +24 VDC of the power supply.
System Power
When ACpower is present, the system operates entirely from AC power(primary). During an ACpower failure,
the entire system load is transferred to the standby batteries (secondary).
Standby and Alarm Current
Standby and Alarm Currents of the Aura Fire Alarm ControlPanel with two loops are provided below. Two loop
operation includes System A Panel Module, System B Panel Module, and the Dual Loop Panel Module. Two
loop operation represents the minimum board configuration of the Aura Fire Alarm ControlPanel. The data
excludes all external loads. Primary loads assume a fully charged battery.
5.25 A Power Supply
Standby Load
(mA)
Alarm Load (mA) Description
162 mA @ 230 VAC 177 mA @ 230 VAC
Line current for standby and alarm when battery charge current is less than 30
mA.
560 mA @ 24 VDC 650 mA @ 24 VDC
Battery current for standby and alarm when ACpower failure condition is
present.
10.25 A Power Supply
Standby (mA) Alarm (mA) Description
176 mA @ 230 VAC 181 mA @ 230 VAC
Line current for standby and alarm when battery charge current is less than 30
mA.
550 mA @ 24 VDC 620 mA @ 24 VDC
Battery current for standby and alarm when ACpower failure condition is
present.
The data provided above for standby and alarm current includes loads of a two loop fire control panel alone and
excludes current loads from external devices or equipment.
Appendix A: Specifications
SHIELD Fire, Safety & Security Ltd
Aura Fire Alarm Control Panel Installation Manual
Version 1.00 |June 2019 |MAN-1431VS
Page 107