Automatic Transfer Controller ATC5300

1. Microprocessor-based automatic transfer switch.
2. Two measure inputs for three-phase + neutral voltage.
3. DC 12-24-48 V power supply.
4. AC 220-240 V power supply.
5. Two 3-digit 7-segment LED displays.
6. 22 status and measure LED indicators.
7. 8-key membrane keypad.
8. RS 232 serial interface for set-up, remote control and supervision.
11. Non-volatile memory for events and statistical data.
12. 8 programmable digital inputs.
13. 7 programmable relay outputs (5 NO + 2 NC / NO)

Applications :-
1. Utility-to-utility, utility-to-generator or generator-to-generator changeover.
2. Control of motorized circuit breakers, motorized switches or contactors.
3. Generator management with automatic test and rotation-emergency.
4. Three-phase, two-phase or single-phase voltage controls.
5. L-L voltage and / or L-N voltage control.
6. Controls of minimum voltage, maximum voltage, phase loss, asymmetry, minimum frequency, maximum frequency, with independent enable and delay.
7. Voltage thresholds with programmable hysteresis.

This Automatic Transfer Controller block is easily insert in your schematic diagram and connect as you like way.

Power Supply Circuits :-
1. SENTRON ATC5300 has a double power supply circuit, that means that it can operate with both AC and DC supply or with only one of the two indifferently.
2. In presence of both power supplies, the energy is taken from the AC source. In this case only a little power is drawn from the DC source, needed to allow operation of the supply circuit itself.

For the line changeover, ATC can control different types of devices such as motorized circuit breakers, motorized changeovers or contactors. Depending on the type of changeover devices used with the ATC,appropriate wiring diagrams shall be used with related programming of programmable inputs / outputs. Programmable outputs are set by default for the application with motorized circuit breakers. See the attached wiring diagrams at the end of this manual. The device status feedback inputs shall be normally wired, so as to ensure reliable system operation. Nonetheless, it is however possible to avoid their wiring and set programmable inputs for other functions. In this case the unit behaves as if the device carried out at once the command sent.If the device status inputs are not used, then ATC, after power-on, sends an open command to bring the switching devices in a defined position. If instead the device status inputs are used, then ATC, after power-on, does not send commands to the switching device until the relative line status is not stable, that is when the presence / absence delay have elapsed. Internal control relays are neither interlocked electrically nor mechanically.