Installation Manual

Galaxy 3 Series Installation Manual
2-9
Stand-by Battery
The Galaxy 3 Series control panels can accommodate up to 2 x 17 Ahr batteries. Ensure that the battery
connector leads on the control panel Powers Supply Unit (PSU) are connected to the correct terminals on the
battery.
CAUTION: There is a risk of explosion if the battery is replaced by an incorrect type.
Dispose of used batteries according to the instructions.
Table 2-3. Battery/Control Panel connections
Battery Start-up
The system can be powered up via the Battery Start-up jumper if there is no AC power. To do this, short
out the Battery Start-up jumper for the duration of the configuration process only. Never leave the Battery
Start-up connected or else deep discharge of the Stand-by Battery will occur.
On-Board Power Supply Unit
The on-board Power Supply Unit (PSU) supplies and monitors power to the system and peripherals. The
following table shows the fuse name and value in amps.
G3-144/G3-520: The Galaxy 3 Series control panel contains four fuses. Details are given in the table below.
NOTE: The G3-48 does not require fuse AUX2.
Table 2-4. On-board PSU Fuses
Power Monitoring Characteristics: Low battery level: 11.2V
Deep discharge protection: 10.5V
Overvoltage protection: 14.7V
Stand-by Battery
lenaPlortnoCyrettaB
TAB-lanimretev-
TAB+lanimretev+
FUSE NAME VALUE (AMPS) MONITORS TYPE
AUX1 1.0 RS485 Line 1, RIO 0, Zones 1-8: +12V,
on-board comms
20 mm, anti-surge
AUX2 1.0 RS485 Line 2, RIO 1, zones 1-8 +12V 20 mm, anti-surge
BATT 1.6 Battery 20 mm, anti-surge
BELL 1.0 Outputs RIO 0 1-4, RIO 1 1-4, Horn output 20 mm, anti-surge
G3-48
The PSU total capacity is 1.5A. Internally the PSU
is split in two in order to ensure sufficient current is
always available for stand-by battery recharge.
The PSU capacity is broken down as follows:
• Battery: 0.75A
• Control PCB: 0.25A
• AUX +12V: 0.5A
G3-144/520
The PSU total capacity is 2.5A. Internally the PSU is
split in two in order to ensure sufficient current is al-
ways available for stand-by battery recharge.
The PSU capacity is broken down as follows:
• Battery: 1.25A
• Control PCB: 0.25A
• AUX +12V: 1.00A
The PSU is available for zones/outputs and peripherals.