Power Supply Unit; Configuration - Honeywell Galaxy 2 Series Installation Manual

Galaxy 2 Series Installation Manual

Power Supply Unit

The Galaxy 2 Series Power Supply Unit (PSU) is available in two 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. Both variants are configured in the same way.
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
1/2 3/4
Zones 1-8

Configuration

The Galaxy Power Supply Unit (PSU) consists of two modules, the Power Block and the Control Unit. The
PSU can be connected to the Galaxy 2 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 (Power RIO variant) has eight zones and four outputs. Each variant of the PSU takes one of the
four RIO address (2 - 5). Addressing is identical to that described for RIO Modules.
The four 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 or +12V2 .
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
5 6 7 8
5/6 7/8
Figure 20. Power Supply Unit
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.
29
PSU
Mains
Terminal
NEUTRAL
Block
LIVE