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HAT552/HAT553 DUAL POWER ATS CONTROLLER USER MANUAL
HAT552/HAT553 ATS Controller 2020-05-14 Version 1.1 Page 5 of 35
3 PERFORMANCE AND CHARACTERISTICS
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System type can be set to: Mains - Generator, Generator - Mains, Mains - Mains;
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132x64 LCD with backlight, optional Chinese and English display, push-button operation;
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Measure and display 2-channel 3 phase voltage, frequency and phase sequence;
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Display of A power/B power accumulated close times;
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Display of present continuous power supply time and A power/B power accumulated power supply
time;
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Over/under voltage, loss of phase, reverse phase sequence, over/under frequency protection
function;
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Auto/Manual mode transfer function: in manual mode, user can control the switch to close or open;
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All parameters are configurable. password verification is used to prevent non-professional error
operations;
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Commissioning can be done on site manually to execute genset start/stop operations;
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Switch Re-closing function is fitted;
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Breaker close output can be set to pulse or steady output;
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2-channel N wire isolated design;
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Real-time clock (RTC) display, and event log function, which can record 50 data cyclically.
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Scheduled start & stop generator function: running once monthly/weekly, and onload/offload running
are configurable;
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AC supply power can be phase voltage (L, N), supply range: (170-277)V;
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1 RS485 isolated communication port, has "remote control, remote measuring, remote
communication, remote adjusting" function with ModBus-RTU communication protocol; genset start,
genset stop, ATS close/open can be controlled remotely;
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Suitable for various AC system types (3 phase 4-wire, single-phase 2-wire, and 2-phase 3-wire);
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Modular design, self extinguishing ABS plastic shell, pluggable terminal, built-in mounting, compact
structure with easy installation.