User manual

20 of 148
2.4 Powering the GSC400 and Basic Connections
Menu Location
Page
1
Engine Logic
Advanced Setup > Engine Logic
47
2
Battery Logic
Advanced Setup > Battery Setup
57
3
Extra Relay
Logic
Advanced Setup > Outputs Setup >
Extra Relay
69
There are a group of 8 spade terminals on the back of the GSC400. Their
functions are described below.
Table 3 – Basic GSC400 Connections
Terminal Name as it appears on
label
Installation Notes
Extra NO
These are the dry contacts of the Extra
Relay Output. The extra relay can be set
to the same features as the configurable
outputs. See Table 18 on page 69 for a list
of the possible features the extra relay
output can be set to.
By default this is programmed to preheat
(glow plug).
Extra Common
- Bat
+ Batt and - Batt are used to power the
GSC400. Connect to 12 or 24VDC. The
two + Batt connections are tied together
internally as well as the two - Batt
connections. Only one - Batt and + Batt
connections are required to power the
GSC400. The other + Bat and - Bat can
be used to power external devices or left
unconnected.
- Bat
+ Bat
+ Bat
Crank
When on, this provides battery voltage up
to 20A (24VDC) or 40A (12VDC) to the
generator starter motor.
Fuel
When on, this provides battery voltage up
to 20A (24VDC) or 40A (12VDC) to power
the generator fuel pump or ECU.
Ensure wire gage is sufficient; otherwise (especially during cranking) there could
be a voltage drop across the cable to the controller from the battery causing the
GSC400 to display the wrong voltage and negatively affecting the battery related
features of the controller.
The relay amperage ratings are for a purely resistive load. Inductive loads have
an initial peak current that must be taken into account.