Generator Set Control + (GSC+)
Functions and features of the GSC+
Illustration 56 g00634036
The Location of the GSC+ on the EMCP II+ Control
Panel
The left side of the control panel contains the
generator set control + (GSC+). The GSC+ is the
main component of the system. The GSC+ displays
generator output, generator set functions, fault
conditions and key engine parameters. The GSC+
accepts information from the operator, magnetic
pickup, oil pressure sensor, water temperature
sensor and optional remote sources. This information
is used to determine the “on/off” state of the engine's
air, fuel, and starter.
In the very basic operating conditions, the GSC+
receives a signal to run the generator set. The GSC+
turns on the engine's fuel and starter. When the
engine speed reaches the crank termination speed,
the starter is disengaged. When the GSC+ receives a
signal to stop the engine, the GSC+ shuts the fuel off.
The functions of the GSC+ are listed below.
• The GSC+ controls the normal starting and
stopping of the engine.
• The GSC+ shows engine conditions and
generator output information on two displays. The
displays also show fault codes and GSC+
programming information.
• The GSC+ monitors the system for faults. If a fault
occurs, the GSC+ performs a controlled fault
shutdown or provides a fault alarm annunciation.
The GSC+ uses indicators and displays in order to
describe the fault.
• The GSC+ contains programmable features for
certain applications or customer requirements.
The features of the GSC+ are listed below.
• Cycle Crank : The GSC+ can be programmed to
crank for adjustable time periods. For
programming instructions, refer to the Systems
Operation, Testing and Adjusting, RENR2484,
“Electronic Modular Control Panel II + (EMCP II
+)”.
• Governor Control : When the engine oil
pressure increases past the low oil pressure set
point, the GSC+ will indicate to the governor that
the governor should increase the engine speed
from idle rpm to rated RPM.
• Cooldown : Upon receiving a signal to perform a
normal shutdown, the GSC+ will wait a
preprogrammed amount of time before shutting
the engine down by means of the fuel control.
• Automatic Operation : While in the automatic
mode, the GSC+ can be started by a remote
initiate signal (contact closure). Upon loss of the
signal (contact opening), the GSC+ will perform a
normal shutdown.
• Alarm Module Communication : The GSC+ can
transmit fault and alarm conditions to an alarm
module (AM).
• Power Down : The EMCP II+ system is designed
to remove power from the GSC+ when the engine
control switch (ECS) is in the OFF/RESET mode
and when the proper jumper wire is removed. The
GSC+ will not allow the power down until the crank
termination relay and the fuel control relay are
both off for about 70 seconds. If the wire is not
removed, the GSC+ will remain powered up. For
the wiring diagram and the location of the jumper
wire, refer to the Systems Operation, Testing and
Adjusting, RENR2484, “Electronic Modular
Control Panel II + (EMCP II+)”.
• Fuel Solenoid Type : The GSC+ can be
programmed to work with either an energized to
run (ETR) fuel system or an energized to
shutdown (ETS) fuel system.
SEBU7125-13
45
Operation Section
If Equipped
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