Model 2000 ATS Control System

The Russelectric Model 2000 microprocessor-based control system is preprogrammed at the factory to control all operational functions of the automatic transfer switch.

The controller also senses the normal source and emergency source voltages and provides LED indicators to show whether the ATS is in the normal or emergency position, and to confirm that the CPU is running.

The controller has a 20-character, 4-line LCD display. A 5×5 character tactile keyboard allows easy access to the control system is used to select items from main and submenus, to set up adjustable parameters, to control the ATS, to obtain operational status, and to set up accessories.

The microprocessor board provides memory management, two asynchronous serial ports, battery-backed real-time clock, and microprocessor supervisory (power fail) circuit.

Default setup information and calibration data are stored on non-volatile EPROM. Changes to default setup information and calibration are stored on EEPROM.

A rechargeable NICad battery provides 5 VDC power to the controller during the engine start timing cycle when no AC or DC power is available.

Self-diagnostics perform periodic checks of the memory, I/O, and communications systems and, when an error is detected, invoke a software reset if required. A timer circuit invokes a hardware reset if program execution exceeds 1.6 seconds.

The system contains 3-phase, over/under voltage, over/under frequency, phase sequence detection and phase differential monitoring for both normal and emergency sources.

The controller uses industry-standard open architecture protocol for high-speed via ethernet communications with other controllers and to a master terminal.

The Accessory Setup and Service Screens allow accessory installation and changes to the system setup, calibration, and diagnostic functions. Password protection limits access to authorized personnel.

The optional Model 2000 Plus provides all the functions of the Model 2000 as well as the ability to monitor all key power data. For details, see the Russelectric RMCP data sheet.