DynaGen GSC400 Series - Page 19

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Terminal
Detail
Terminal
Location
Wire
Size
(AWG)
Current
max.
Function
RS485-A 1 18 7mA RS485 Connection High
Ground 2 18 7mA Ground Terminal
Connection
RS485-B 3 18 7mA RS485 Connection Low
RS485-A 4 18 7mA RS485 Connection High
Ground 5 18 7mA Ground Terminal
Connection
RS485-B 6 18 7mA RS485 Connection Low
RS485
(Modbus)
For safety, it is highly recommended to install a
switch on either the RS485 A or B lines locally at the
generator. This can be used to prevent an
unexpected start remotely while performing maintenance or repairs.
Terminal Wire Size
(AWG)
Current
max.
Function
Phase A* 18 7mA Monitor Generated AC Voltage
Phase B* 18 7mA Monitor Generated AC Voltage
Phase C* 18 7mA Monitor Generated AC Voltage
Neutral 18 7mA AC Voltage Neutral connection
AC Voltage
Sensing
*Place 1A fuse between the hot lines and the voltage sensing terminals of
GSC400.
Terminal
Detail
Terminal
Location
Wire
Size
(AWG)
Current
max.
Function
Phase A 1 18 5A Phase A current sensing
CT-
Phase B 2 18 5A Phase B current sensing
CT-
Phase C 3 18 5A Phase C current sensing
CT-
Phase A 4 18 5A Phase A current sensing
CT+
Phase B 5 18 5A Phase B current sensing
CT+
Phase C 6 18 5A Phase C current sensing
CT+
AC Current
Sensing
It is extremely important to connect each phase to the
appropriate terminal location. Never mix phase inputs.
Always match terminal details to the matching terminal
location.
The current transformers (CTs) negative leads must be terminated
individually into the GSC400 AC Current connector. DO NOT
CONNECT TOGETHER.