S.I.C.E.S. S.R.L.

GC 315

GC 400

Genset controller for Synchro/parallel applications


8 x Digital inputs


8 x Digital outputs


3 x Analogue inputs


2 x Analogue outputs


AND/OR Logic control


Event history log


USB port






Ethernet connection
GC400 version


(2G/4G/5G ready)
Link version


TIER4 final Stage V


5G ready
Link version


GC400 is a comprehensive controller particularly suggested for managing different types of synchro/parallel applications, especially for MPM (Multiple Prime Mover) and MSB (Multiple Stand-by) power plants, where the synchronization of several gensets is required.

GC400 design allows an easy and fast installation, thanks to the internal load sharing and synchronizer.

GC400Mains version, is the perfect controller for those plants where the reverse synchronization is required to avoid any drop voltage on load.

All the GC400 versions have a direct interface via CAN J1939 with a wide range of electronic engines (Volvo Penta, Scania, Perkins, MTU, Deutz, Cummins, John Deere, Caterpillar and others) and they can be also used with traditional engines by the embedded analogue sensors.

Further details

This controller can be combined with all Sices controllers, as GC600, DST4602Evolution.
All the parameters can be set directly by the controller’s keyboard or, alternatively using the free software tool (BoardPRG3), available from SICES’ website.

The graphic display is a user-friendly interface, useful for a quick visualization of measures and alarms coming from the genset.
Events and DTC logs can be accessed from the front panel and read on the display.

GC400 supports several communication interfaces for the local or remote control.
A version with built in GPRS/GPS tracking (GC400Link) is particularly suited for mobile or rental applications, where asset tracking and monitoring is required.


Rear view connections and dimensions

  • True RMS readings on generator voltages and currents. Neutral measure included.
  • Additional current measurement for neutral or ground fault protection.
  • Active, reactive and apparent power measurements.
  • Engine speed measurement by pick-up, frequency or W.
  • Graphic display with self or manual adjustable contrast based on the temperature.
  • Insulated and auto-supplied J1939 and MTU MDEC CAN interface.
  • Interface with traditional MPU engines.
  • USB, RS232 and insulated RS485 serial port with MODBUS RTU protocol, ethernet
  • interface with MODBUS TCP protocol.
  • Real time clock with battery.
  • Events and data recording.
  • SIMONE and SicesSupervisor monitoring system for remote control (App iOS and Android available).

Embedded functions

  • Engine diagnostic code.
  • Periodical test.
  • Real time clock with internal rechargeable lithium battery.
  • Fuel pump management.
  • 126 Events log.
  • Pre-glow and coolant heater management.
  • Remote start and stop.
  • Override function.
  • Hours counter for the maintenance schedule.
  • Daily counter with embedded calendar for the maintenance.
  • Embedded alarm horn.
  • Engine speed measurement by pick-up, frequency or W.
  • Programmable by PC or using the keyboard of the controller.
  • Remote firmware update.
  • SMS communication.
  • DHCP, DNS, NTP and SNMP Support are available.
  • N.1 Threshold as load shedding.
  • Internal active and reactive regulation.
  • Internal load-sharing.
  • Internal synchronizer.
  • Powerful load management suitable for plants composed by gensets of different powers.
  • CAN interface for ECU connection (J1939 and MTU MDEC).
  • Insulated CAN interface for PMCBUS application (LOAD–SHARING and parallel management).
  • Up to 16 gensets connected together.
  • Up to 4 alternative configurations.
  • Easy plant configuration.
  • N.3 Levels of power reserve for expected changes of load.
  • Load and unload ramps.
In case of multiple gensets in parallel to mains where the reverse synchronization is required, it is necessary to use one GC400 for each genset + one MC400 for the management of the MCB.

Multilingual device

Default display languages:

Additional languages downloadable with boardprg tool:


  • Mains live / Disabled.
  • Generator live.
  • GCB status.
  • MCB status (for GC400Mains only).
  • BUS live.
  • Engine running.
  • Engine cooling.

Generator protections

  • Underfrequency (81U).
  • Overfrequency (81O).
  • Undervoltage (27).
  • Overvoltage (59).
  • Reverse power (32P).
  • Loss of excitation (Reverse reactive 40).
  • Time dependent overcurrent (51,51V).
  • Instantaneous overcurrent (50, 50V).
  • Generator overload (from external contact of circuit breaker).
  • Max. auxiliary current.
  • Synchro-check (25).
  • Phase sequence (47).
  • Currents and Voltages unbalance (46/47).
  • Differential protection (64).
  • Ground fault protection (50N).
  • Negative sequence (46-I2).

Engine protections

  • Fuel reserve.
  • Min./Max fuel level.
  • Battery failure (min./max. Voltage).
  • Min./Low oil pressure.
  • Min./Max. coolant and oil temperature.
  • Closing failure of mains contactor or genset contactor.
  • Engine over crank.
  • Belt breakage.
  • Operating conditions not reached.
  • Emergency Stop
  • Max power.

Mains protections

  • Rate of Change of Frequency (81R ROCOF).
  • Vector shift.
  • Undervoltage (27).
  • Overvoltage (59).
  • Underfrequency (81U).
  • Overfrequency (81O).
  • Supply voltage: 7…32 Vdc.
  • Power consumption: typical less than 2W (Auto mode, Standby, AMF active, LCD Lamp Saving active).
  • Operating frequency 50Hz or 60Hz.
  • LCD with backlight.
  • Operating temperature: -25 °C to 60 °C.
  • Protection degree: IP65 (gasket included).
  • Weight: 750gr.
  • Overall dimension: 244 (W) x 178 (H) x 40 (D) mm.
  • Panel cut-out: 218 (W) x 159 (H) mm.
  • Graphic display dimensions: 70x38mm - 128x64 pixel.
  • Specific function for French market EJP / EJP-T.
  • EMC: conform to EN61326-1.
  • Safety: built in conformity to EN61010-1.

Commercial datasheets

For more information

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