Electronic Engine Control
1 OVERVIEW
HAT520NC ATS Controller is composed of the core microprocessor, which can precisely measure 3
phase/single phase voltage of 2 ways, make accurate judgment on abnormal voltages (power lost,
over/under voltage, over/under frequency, loss of phase, phase sequence wrong), and control ATS to
transfer after the delay has expired. It is suitable for No breaking ATS. When 1# power is abnormal,
controller can send signal to start genset after the "1# abnormal delay" has expired. "Three remotes"
(remote control, remote measurement, and remote communication) function can be implemented via
RS485 communication port.
2 PERFORMANCE AND CHARACTERISTICS
Controller performance and characteristics are shown as below:
- Measure and display 2-way 3-phase Voltage and Frequency:
1# 2#
Line voltage (Uab, Ubc, Uca) Line voltage (Uab, Ubc, Uca)
Phase voltage (Ua, Ub, Uc) Phase voltage (Ua, Ub, Uc)
Frequency Hz Frequency Hz
- Over/under voltage, loss of phase, phase sequence wrong, over/under frequency detection
function. As default, phase sequence wrong and over/under frequency detection are disable;
however, users can set the function as you need.
- RS485 communication port ( SG72 adaptor is needed). It can realize controller parameter
configuration function and it also can realize firmware update of controller.
- The normal delay of 1# or 2# power can be set (Range: 0~60s) and the Genset start delay can be
set (Range: 0~3600s).
- The abnormal delay of 1# or 2# power can be set (Range: 0~60s) and the Genset stop delay can be
set (Range: 0~3600s)s.
- "1# Master", "Each Backup" and "2# Master" can be set via controller front panel, to realize 1#
master power supply, 2# master power supply, or backup supply methods for each other to supply
power.
- Close output signal can be set as on intervals or as continuous output.
- 2-way N line isolated design.
- Auto/Manual mode transfer. In manual mode, ATS transfer 1# switch or 2# switch can be
implemented via panel pushbutton.
- LEDs mounted on front panel can clearly show ATS running status.
- The output contactor capacity of 1# and 2# power supply transfer relay (1# CLOSE, 2# CLOSE) is
16A AC250V, volts-free contact, can be directly used in driving switch to transfer etc.
- The output contactor capacity of Genset start relay (GENS START) is 7A AC250V/7A DC28V,
volts-free Normally Close contact.
- Suitable for various AC systems (3-phase 4-wire, 2-phase 3-wire and single-phase 2-wire).
- Modular design, flame retardant ABS plastic shell, pluggable terminal, built-in mounting, compact
structure with easy installation.
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Model Number : HAT520