1. GENERAL DESCRIPTION
1.1 INTRODUCTION
This module controls up to three power sources: mains and two generators (MGG). It is also possible
to configure it to control mains and one generator (MG) or just two generators (GG). It features
isolated measurement of the voltages and frequency on all three sources as well as the current on the
load side. It has four operating modes selectable by the user: OFF, AUTO, MAINS, G1 or G2.
This module can be configured to be used as ATS or ATSO.
The user interface consists of a Graphical LCD display. A mode push button is provided to select the
operating mode and four push buttons are used to access a menu of parameters. The menu gives
access to all timers, set points and other parameters relevant to the control and protection of the
installation.
This module comes with RS485, USB and Ethernet communication ports. It also features a 4GB
MicroSD card for data and event logging. Data and event retrieval is done by either USB port or
Internet through a dedicated website.
The firmware could be easily upgraded on site via the USB interface using a desktop application or
any smart phone with a free Android app.
1.2 FEATURES
Microcontroller based design
Measurement and display of the voltages and frequency on the three power sources
Measurement and display of the current on the load side
Measurement and display of the power on the load side
All three supplies are monitored for over/under voltage, phase presence and sequence
All three supplies are monitored for over/under frequency
Load side is monitored for over current when it is not supplied by the Mains
Display of Software version, the internet connection status, the date and time
Alternate function to keep the running hours of the Gensets similar (For ATS)
Automatic switching between the two Gensets based on the load (For ATSO)
Weekly exerciser function
Ability to control contactor, motorized circuit breakers and motorized changeover switches
Easy to fit DIN standard 184X139 panel mount housing
Connection is via locking plug and socket connectors
Front panel LEDs for inputs status
Menu to provide access to all timers, set points and other parameters
Over / Under frequency alarm and shut down
Over / Under voltage alarm and shut down
Over current alarm and shut down
Operation by push buttons
USB interface
Ethernet interface (optional)
Serial RS485 Modbus protocol (optional)
4GB Micro SD card for event and data logging (optional)
Internet communication: no software installation required
Galvanic isolation for all three suppliers AC inputs
Parameters can be edited and updated from any remote interface at any time even when an engine
is running
Menu accessible from front panel as well as from the internet.
