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4.6.2.2 AX-PSU-6 Battery Connections
AX-PSU-6 Battery Charger:
Supervised charger 2.0A (Maximum 45Ah).
NON-POWER LIMITED
Charging voltage 27.4 VDC typical, temperature
compensated.
Start the AX-PSU-6 power supply charger on AC power first
then connect the batteries.
If AC power is not available, the AX-PSU-6 can be started
directly from the batteries. Connect a fully charged set of
batteries and press the “START FROM BATTERY” push
button.
The battery charger provides deep discharge protection.
Battery power will be disconnected when voltage falls below
19V (nominal).
Note: If the batteries are disconnected the charger output
is turned off.
Internal series resistance of the batteries is continuously
checked. If the internal series resistance increases above 0.8Ω
then the AX-PSU-6 will indicate a trouble condition.
4.6.2.3 AX-PSU-6 24 VDC and Trouble/Fault Contact Wiring
The AX-PSU-6 24 VDC power output terminals 0V and +V0 get
connected to the power input terminals +24V and GND on the AV-
AMP-80 audio amplifier module.
POWER LIMITED
The AX-PSU-6 Form C power supply trouble/fault relay contact is a
fail-safe relay which transfers on loss of power or any other power
supply trouble condition. This trouble/fault relay contact must be
monitored by the intelligent fire alarm control panel.
UNSUPERVISED, POWER LIMITED
Note: The AX-PSU-6 power supply trouble/fault relay contact, in
addition to the trouble relay contact located on the AV-AMP-80
audio amplifier module must be monitored by the intelligent fire
alarm control panel.
COM NO NC
OV +VO
-BAT +BAT
2
4
6
8
1
3
5
7
24 VDC (-)
24 VDC (+)
Trouble Relay
Contact (fail-safe)
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