Power Supply Unit; Configuration - Honeywell Galaxy 3-48C Installation Manual

Power Supply Unit

Power Supply Unit
The Galaxy 3 Series Power Supply Unit is available in 2 variants.
The Galaxy Power Unit is a 3 ampere power supply. The Galaxy Power RIO is a Power Unit plus an on-
board Remote Input Output (RIO) module. Each variant can be integrated with all Galaxy control panels, with
the exception of the Galaxy 8. The number of Power Units or Power RIO's that can be used on a system is
limited by the number of RIO's that can be added to each panel.
Off-wall
Tamper
LID OW
TAMP TAMP
Bell-Box
LK5
+14.5
connection
0V
F1
F4
0V
+12V2 F3
0V
+12V1
Comms A(DO)
Line B(DI)
Control Unit
OP4 LK4
OP3
Outputs LK3
OP2
LK2
OP1
LK1
1 2 3 4 5
1/2 3/4
Zones 1-8

Configuration

The Galaxy Power Supply Unit (PSU) consists of 2 modules, the Power Block and the Control Unit. The
PSU can be connected to the Galaxy 3 Series control panel via the RS485 (AB) line. The PSU can be used in
place of a standard RIO to overcome power problems that arise when the additional RIO is fitted distant to
the control panel.
A 6-way jumper lead connects the Power Block to the Control Unit.
The PSU has 8 zones and 4 outputs. Each PSU takes one of the 4 RIO address (2 - 5). Addressing is identi-
cal to that described for RIO Modules.
The 4 outputs are switched 0V (0V active). Without the jumper links (LK1-4) fitted, the outputs will float in
the OFF state. They can apply a +12V signal, if required, by fitting the appropriate pull-up jumper supplied.
LK5 will short out the off-wall tamper if it is not used.
The SLAVE and E/E links must be in place for normal operation.
FAULT OP AC: This is an open collector transistor which is normally off. The output is activated by an AC
failure.
FAULT OP BAT:This is an open collector transistor which is normally off. The output is activated by a
Battery Low or Battery Fail condition.
FAULT OP POWER: This is an open collector transistor which is normally off. The output is activated by
low voltage present in +12V1, +12V2 or +14.5V.
HEATSINK
13.8
From
0V
14.5
Power
0V
BT
Block
LED2 AC/F
(AC)
+BAT
-BAT
F2
Rotary
LED1
Address
(comms)
Switch
SLAVE
E/E
AC BATPWR 0V
FAULT OP
6 7 8
5/6 7/8
Figure 3-5. Power Supply Unit
Galaxy 3 Series Installation Manual
Power Block
13.8V
0V
To Control
14.5V
0V
Unit
BT
AC/F
Power
Header
WARNING: The Power Block PCB
is connected to mains voltage. Always
disconnect mains supply for at least
1 minute before removing the box lid.
3-12
Mains
Terminal
NEUTRAL
Block
LIVE