User manual

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2.7 AC Voltage / AC Frequency
Menu Location
Page
1
AC Voltage
Advanced Setup > AC Voltage
58
2
AC Frequency
Advanced Setup > AC Frequency
58
The GSC400 controller requires a neutral reference from the generator. All
voltages are measured line to neutral and then converted for display as line to
line if required.
Battery negative needs to be connected to the neutral of the electrical system as
the GSC400 AC voltage sensing requires a battery negative reference. Follow
all appropriate standards.
The GSC400 may not sense AC Voltage and Current properly if VFD (Variable
Frequency Drives) devices are connected to the generator. The harmonic
frequency must be below 260Hz.
Do not place more than 600VAC line to line on the GSC400 AC Voltage
terminals.
1A fuses should be placed in series with the voltage sensing wires to the
GSC400 – see Figure 4 above. Place close to the sensing source.
For runs longer than 5ft use twisted pair cabling. User is responsible for testing
for applications requiring over 5ft of wire.
The GSC400 supports the following voltage configurations (Refer to Figure 6
below for three phase configurations):
1. Single Phase
a. Two Wire (120VAC) (Connect to Phase A). Connect phase B to
neutral if you experience problems.
b. Three Wire (120 / 240VAC) (Connect to Phase A and B)
2. Three Phase (Connect to Phase A, B, and C)
a. Wye (4 wire)
b. Four Wire Delta
c. Three Wire Delta (1:1 transformers required to create a neutral
reference). This is not supported by Dynagen.
Corner Neutral Delta configurations are not supported.
With three wire Delta and (4 wire) Wye configurations it is possible to use 2:1
voltage transformers to step down the voltage by ½. This allows AC voltage
sensing up to 1200VAC line to line. This is not possible for 4-wire delta
configurations. Refer to Figure 6 below. This is not supported by Dynagen.