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Advanced synchro parallel genset controller with internal load sharing, synchronizer and PLC functions

sices srl DST4602Evolution gen-set controller


DST4602Evolution is the top-level device among Sices controllers.
It is an highly configurable genset controller for advanced and complex parallel applications, where a huge number of settings are required (functions and parameters) for the genset management, and its auxiliary circuits.

DST4602Evolution allows to connect up to 24 gensets on the same bus, working in island mode and in parallel with the mains.
Thanks to the controller’s high configurable level and built-in PLC functions (with PID blocks), DST4602Evolution can be used for CHP power plants equipped with Gas, Diesel, Biofuel and Dual fuel Engine.
The controller also features fully integrated Air-Fuel Ratio (AFR) control, furthering its ability for such applications.

DST4602Evolution is fully equipped with internal Load Sharing, Synchronizer and W and VAR regulation. This controller includes a CAN J1939 interface, supporting a wide range of engines (Volvo Penta, Scania, Perkins, MTU, Deutz, Cummins, John Deere, Caterpillar and others).
It can be also used with traditional engines, where measurements and control are performed by the embedded analogue interfaces.

DST4602Evolution can be used together with all Sices genset controllers (GC600, GC400). In case of multiple gensets in parallel with the mains where the reverse synchronization is required, and it can be also interfaced with the Sices mains controllers (MC200, MC400), to avoid in this way any further blackouts on the loads.

The controller’s configurable parameters make standard and customized tasks easy to manage. All the parameters can be set directly by the controller’s keyboard or, alternatively using the free software tool (BoardPRG3), available from Sices’ website. It is also available a free PLC software editor, (SicesPlcEditor) to set the PLC logics.

The enhanced and large 7” graphic colour display with TFT technology, is a user-friendly interface, conceived for a quick and easy visualization of measures and alarms coming from the genset. This controller stores events and periodical data in the internal memory, this information can be read from the front panel display.

DST4602Evolution provides several communications interfaces for local or remote control. In case of complex applications, like Oil&Gas stations, the inbuilt protections can be expanded by using the external protection relay D-PRO.


  • Operating mode selection (available in two versions):
    • with selector key
    • with two dedicated push buttons
  • Engine START and STOP pushbutton
  • GCB and MCB command using push buttons
  • ACK/MODE (acoustic alarm silencing and other aux functions)
  • Four ARROW keys for LCD display selection mode, window selection, parameter change and other
  • EXIT, ENTER and SHIFT keys


  • Digital UP/DOWN commands for speed governor and AVR
  • Mains and Genset circuit breaker management
  • True RMS readings on generator and mains voltages and on generator currents, with an additional current measurement for neutral or differential protection
  • Active, reactive and apparent power measurements
  • Frequency and power measurements on mains input
  • 20 fully programmable digital inputs with possibility of additional several inputs
  • 16 fully programmable digital outputs with possibility of additional several outputs
  • Several communication tools (RS232, Insulated RS485, RJ45 Ethernet, USB port)
  • Large TFT graphic coloured display 7’’ 800x480 pixel
  • Real Time Clock, events and data recording
  • Remote control systems
  • KEMA Certification - Guideline BDEW (DE)

Dynamic support of the grid

The dynamic support to the grid is available: automatic adjustment of the active power output based on the mains frequency value.
This feature allows the genset to support the grid in case of over/under production.

Default display languages:

Additional languages:

  • Supply voltage: 8…33 Vdc
  • Power consumption: less than 7W (+5W for display lamp) typically
  • Rated Genset frequency: 50 or 60 Hz
  • Digital Input: opto-insulated
  • Static outputs: 500mA @ 25°C, 360mA @ 50 °C, 20 Apk
  • Auxiliary relays outputs: 1/2,5/4A 30V
  • Weight: 1,6kg
  • Overall dimension: 260 (W) x 202 (H) x 86 (D) mm
  • Panel cut-out: 240 (W) x 172 (H) mm
  • Panel mounting: by means of stud-bolt
  • Protection Grade: IP54 (front panel, by means of additional keylock protective cap and gasket)
  • EMC: compliant with EN61326-1
  • Safety: built in compliance with EN61010-1

Display Features

  • DST4602Evolution 800x480 Pixel TFT, 7’’
  • Colour display
  • Overall dimension: 155(L) x 93(H) mm
  • Operating temperature: -20 °C to 60 °C
  • Stock temperature: -30 °C to 80 °C

AMF Mains protections

  • Undervoltage (27)
  • Overvoltage (59)
  • Underfrequency (81U)
  • Overfrequency (81O)
  • Voltage unbalance (47)
  • Phase sequence (47)

Loss Of Mains (LOM) protections

  • Rate of Change of Frequency (81R ROCOF)
  • Vector shift
  • Undervoltage (27)
  • Overvoltage (59)
  • Underfrequency (81U)
  • Overfrequency (81O)

Generator protections

  • Max power
  • Underfrequency (81U)
  • Overfrequency (81O)
  • Undervoltage (27)
  • Overvoltage (59)
  • Power direction (32)
  • Loss of excitation (Reverse reactive 40)
  • Time dependent overcurrent (51) IDMT
  • Instantaneous overcurrent (50)
  • Phase overcurrent with voltage restraint/control (50V/51V)
  • Synchro-check (25)
  • Phase sequence (47)
  • Current and Voltage unbalance (46/47)
  • Ground Fault Protection (64) as alternative to neutral protection (50N)
  • Negative sequence (I2)

Possibility to extend the protections of the controller using Sices Protection Relay D-PRO.

Engine protections

  • Overspeed (12)
  • Incomplete sequence (48)
  • Belt-break
  • Coolant and lube oil temperature warning and alarm
  • Lube oil pressure warning and alarm
  • Max. power
  • Fuel level
  • Emergency stop

DST4602Evolution communications system

  • N. 1 Serial port RS232 with MODBUS RTU protocol
  • N. 1 Serial port RS232 or insulated RS485 with MODBUS RTU protocol
  • N. 1 USB port for firmware upgrade
  • N. 1 USB port with MODBUS RTU protocol
  • N. 1 Ethernet port with Modbus TCP protocol
  • Direct GSM and PSTN modem management
  • Automatic call or SMS in case of event

As option

  • Modem GSM
  • Rewind - Module interface for SIMONE using GPRS/GSM and GPS technology
  • Dance - Module interface for SIMONE using Ethernet technology
  • Supervision software SicesSupervisor3 and SIMONE
Depending on the application, two different single line diagrams on the front panel are available.

1. Including the GCB (not the MCB)

For those plants where the genset controller do not manage directly the MCB (Mains Circuit Breaker)

2. Including MCB + GCB

For those plants where is necessary to directly control the MCB (Mains Circuit Breaker): single genset working as emergency or in parallel to the mains.

For each local DST4602Evolution it is possible to add one or more remote displays, called DST4602Remote.
This solution is usually recommended in case of remote-control room where the genset monitoring is required. It is possible to connect up to 4 remote displays to a single DST4602Evolution controller.

Connection Between DST4602Evolution and DST4602Remote

  • Via RS485 Modbus RTU (max 800mt)
  • Via ethernet TCP/IP (max. distance 100mt without any hub)
  • If via ethernet, it is possible to connect several DST4602Remote to one local controller

Graphic display

DST4602Remote is equipped with a powerful 7’’ colour graphic display TFT - 800x480 pixel.

Key selector controls

  • Command disabled: no operation is allowed
  • Command enabled: all operations are allowed
  • Remote reset: reset of alarms/warnings

Push buttons

  • REMOTE START: starting is enabled if the operating mode of the local controller is in AUTO
  • REMOTE STOP: used to remotely stop the genset. If the genset has been started by the DST4602Remote, the “REMOTE STOP” stops the genset with the cooling operations.
    If the genset has been started by the local DST4602, the “REMOTE STOP” stops the genset immediately without any cooling operations.
  • GCB: for manual opening/closure of the Genset Circuit Breaker.


System safety can be increased with a dedicated password, on both local and remote controller.

DST4602Evolution has a built-in innovative and automatic start sequence, that allows to achieve a fast paralleling of several gensets in a maximum time of 9 - 15 sec. (it depends on the alternators and engines features).

The advanced system so called “Fast Paralleling” or “Dead Bus Paralleling”, is an effective solution for those sensitive stations where any mains failure, even for a few seconds, could cause huge problems to people and data security, by creating damages during the production processes (banks, hospitals, data centres, etc…).

Using the Fast Paralleling feature, gensets are switched on, synchronized and ready to supply the loads in a few seconds from the mains failure signal.

sices srl dst4602evolution redundancy
In sensitive contests, it is necessary to ensure a safe control of the genset.
Basically, a reliable control is achieved using a “Master unit” which is able to control the genset, combined to a “Back-up unit”.
The “Master unit” is equipped with a self-diagnostic system (watch dog), able to detect any failure of the controller.
After an elapsed and settable time, the “Back-up unit” automatically switches on, taking responsibility of controlling the genset.
When the “Master unit” is ON, the “Back-up unit” is OFF and vice-versa.
In this way, there is no command failures risks between the controllers.
The redundancy available is defined “warm type”, taking consideration that 6-7 seconds are required before the “Back-up
unit” is activated.
It is possible to configure the redundancy of the controllers as follows.
For each genset:
A) 2 x DST4602 compact
B) 2 x DST4602 SCM + N.1 DST4602 HMI (display).
With the case b) there is one common display (DST4602 HMI) and the backup is done on DST4602 SCM
(the internal box).
sices srl dst4602evolution redundancy

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