Outback Power Systems GS4048A Installation Manual - Manual (Page 28)

Installation
26 900-0160-01-00 Rev A
AUX Wiring
The Radian inverter has two sets of terminals which can respond to different criteria and control many
functions. These include cooling fans, vent fans, load diversion, fault alarms, and the Advanced
Generator Start (AGS) function.
The
12V AUX terminals are a switched 12 Vdc power supply. They can control any of the Auxiliary
Output functions available in the system display (MATE3).
The
12V AUX terminals can supply up to 0.7 amps at 12 Vdc (8.4 watts). This is sufficient to drive a
small fan or a relay controlling a larger device. The terminals accept wire up to #14 AWG (0.0032 in²) or
2.5 mm². This circuit contains electronic overcurrent protection, which resets after being overloaded.
No additional fuses are required for the 12V AUX terminals.
The
RELAY AUX terminals are “dry” relay contacts with no voltage. Their most common function is to
serve as a switch for the start circuit of an automatic generator using the generator control functions.
However, they can be programmed for other auxiliary functions as well. These terminals can conduct
up to 10 amps at up to 30 Vdc or 250 Vac.
CAUTION: Equipment Damage
This circuit has no overcurrent protection. A fuse of no larger than 10 amps must
be installed to protect the circuit. Since the internal circuitry of the
RELAY
AUX terminals does not incorporate overcurrent protection, it is the responsibility
of the installer to ensure the circuit is protected. Internal failure that results from
lack of protection is not covered by the Radian warranty.
Each set of terminals has its own set of programmed criteria.
NOTE: The menus for each set of terminals have identical options available, but can control
independent functions. For example, the
RELAY AUX terminals can be used for generator control,
while the 12V AUX terminals can simultaneously be used to control a vent fan in the battery box.
The control logic for the terminals is not always located in the same device. Radian Auxiliary functions
are located within the inverter itself and are described with other inverter functions. Although
inverter-based functions require the system display for programming, they will function even if the
display is removed. However, AGS programming is located within the system display and will not
work if the display is removed. Other devices may also be able to control the terminals.
For generator control, see page 27.
Figure 21 AUX Connections for Vent Fan (Example)
In this example, the 12V AUX terminals directly
drive a 12-volt vent fan. The + and – wires on the
fan are connected to the
AUX terminals.
NOTE: If another device is used, such as a larger
fan, it must not draw more than 0.7 amps.
Fan