Y-703N Automatic Transfer Switch Controller

Model: Y-703N

Rated Voltage: AC220V

Rated Current: 3A

Match:GA/GNF/S/N/L/SA/SN/Q

Certification: CE,CB,CCC

Standard: IEC 60947-6-1

Email: sale@lvma-ele.com

product details

The Y-703 controller is a split type dual power transfer switch controller. It detects the abnormality of grid parameters (over-voltage, under-voltage, phase failure, over-frequency, under-frequency, phase sequence, etc.) , and then automatically controls the transfer switch (Tse) to convert to the appropriate power supply according to the predetermined operation mode, ensure the continuity of power supply on the load side.

Functional characteristics

1. The measurement and control system is constructed with the microcontroller as the core, and the basic parameters of the power grid are calculated by the true RMS

2. The conversion delay and operation mode can be adjusted to meet different application scenarios;

3. The combination of segment code LCD and LED LAMP provides clear and accurate information

4. Configuration of programmable relay output contacts, active and passive fire signal interface, optional communication interface;

5. be able to check the switching times and fault records.

Main Technical Parameters

Working power supply	One-line/two-line A-phase power supply,voltage range AC80~320V , 50/60Hz
Operation mode of TSE	Self-input and self-recover(I circuit priority or II circuit priority can be selected)# Note 1,and mutual standby(self-input without self-recover ) #note 2
Real-time display of powergrid parameters	Display the voltage and frequency of I circuit and II circuit cyclically
Voltage measurement method	3 phase 4 line, neutral voltage measurement
Range and accuracy of voltage measurement	60~350V, accuracy ±1%+1 display word
Frequency measurement range	40Hz~75Hz
Voltage detection function	Lost phase detection,three-phase voltage over and under voltage detection
Phase sequence detection function	The default value is off. The buzzer alarms when the function is turned on
Frequency detection function	By default, transfer is not cast. If you need to transfer, you can enable it in the Setting
Passive fire input	Connect passive switch or contact outside
Active fire input	Connect DC9-36V active signal outside
Transfer time delay is adjustable	0~240s
Overvoltage and under-voltage is adjustable	Under-voltage 100 to 200V; Overvoltage: 200 to 300V
Start generator function	Relay contact output (programmable relay)
Generator start and stop time	Generator start and stop time: 0-240s
Programmable relay	Passive contact output, 3A/250V resistance, start generator is defaulted
Communication function (optional)	RS485 isolation interface over MODBUS
Recording function	It can record the failure transfer times, the voltage of each phase when they are failed and other parameters

Note1: Self-input and Self-recover (I line priority): When normal power is failed (lost phase, overvoltage, under-voltage), TSE will transfer to standby power automatically, when the main power restored, it will transfer back to normal power.

Note 2: Self-input without self-recover (two-line priority) : When the normal power is failed (lost phase, over-voltage, under-voltage), the TSE will transfer to standby power automatically, when the main power restored, it will not transfer back to normal power only when the standby power is failed, it will transfer back to normal power.

Note 3: ATS transfer failure status indicator: if the switch cannot complete the transfer within the specified time, at this time, the controller will stop transfer, and make the controller 8 indicator light flashing at the same time, press the "automatic/manual" button to cancel the transfer failed to change the indicator,8 indicators return to normal state.

Controller Function

Y-703 Automatic Transfer Switch Controller detail (1)

Serial	Name	Instruction
①	Main power status indicator	L1-N,L2-N,and L3-N indicate whether the A/B/C phase voltage of main power is normal.If the voltage is normal,it is on,and if it is abnormal,it is off
②	Main power closing indicator	When the main power closing signal is detected,the light will be on,and then transfer to main power delay the light flashing
③	LCD display	Display measurement value and set parameters and other information
④	Standby power closing indicator	When the standby power closing signal is detected,the light will be on,and then transfer to standby power delat the light flashing
⑤	Standby power status indicator	L1-N,L2-N,and L3-N indicate whether the A/B/C phase voltage of standby power is normal.If the voltage is normal,it is on,and if it is abnormal,it is off

	Manual/Auto	Press this button to transfer between manual and automatic working mode (only valid in the main interface,invalid in parameter setting state.)
	Double Off /return	In manual mode it is double off.In parameter setting state,it is return. Press this button to exit parameter setting
	Main power closing/data plus	In manual mode,it is main power closing key,in the menu browsing interface,it is the menu flip key,and in the parameter setting state,it is data plus key
	Standby power closing/data minus key	In manual mode,it is the standby power closing key,in the menu browsing interface,it is the menu down scroll key,and in the parameter setting state,it is data minus key
	Set/confirm	Press this key on the home screen to enter the menu browsing screen. Press this key on the menu browsing screen to set or confirm parameters key

Overall dimensions

Y-703N Automatic Transfer Switch Controller

Functional characteristics

Main Technical Parameters

Controller Function

Overall dimensions

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