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Y-702 Automatic Transfer Switch Controller

Rated Voltage: AC220V

Operating Frequency: 50Hz/60Hz

Voltage measurement accuracy: ± 1%

Frequency measurement accuracy: ± 0.05 Hz

Switching time: 0.5-30s (adjustable)

Communication Interface: RS485, Ethernet (optional)

Communication Protocol: Modbus RTU, TCP/IP (optional)

Working Temperature: -10 °C-+ 60 °C

Working environment humidity: ≤90% Rh (no condensation) 

Email: sale@lvma-ele.com

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product details
The Dual Power Automatic Transfer Switch Controller is a dual power supply system for the design of intelligent control equipment, designed to ensure that in the complex and changeable power environment, load can be sustained, stable and reliable power supply. Through the comprehensive monitoring of the two power supplies, it can accurately judge the status of the power supply, and quickly switch the power supply according to the preset logic, which effectively solves the problem of power interruption caused by power failure, widely used in hospitals, data centers, financial institutions, industrial production and other areas of high demand for power supply continuity.

Functional characteristics

Precise power supply monitoring
Voltage Monitoring: real-time, accurate measurement of two power supply voltage value, can set the over-voltage, under-voltage threshold. For example, for 220V mains, can accurately identify the voltage higher than 242V (overvoltage) or lower than 198V (undervoltage) abnormal situation.
Frequency monitoring: strictly track the frequency of the power supply to ensure its stability in the range of 50 Hz ± 0.5 Hz to ensure the normal operation of frequency-sensitive equipment.
Phase Monitoring: in the three-phase power supply system, accurately monitor the 120 ° phase difference between the phases, and timely detect anomalies such as excessive phase deviation or wrong phase order.
Intelligent switching control
Automatic switching: when the main power supply over-voltage, under-voltage, phase, abnormal frequency and other faults are detected, the controller automatically and quickly switches the load to the standby power supply in a very short time (usually tens of milliseconds to seconds) to ensure uninterrupted power supply to the load.
Manual switching: equipped with manual switching function, the operator can switch the power supply flexibly according to the actual needs through the button of the controller panel or the remote command.
Flexible switching logic: can customize the priority of the main power supply and standby power supply, by default, the mains often as the main power supply, generators, etc. as a backup power supply. At the same time, the switching delay function is set to avoid the false switching caused by the instantaneous fluctuation of the power supply, and the delay time can be flexibly adjusted within 0.5-5 seconds.
Multiple alarm prompts: when the power supply is abnormal or the system fails, the controller immediately sends out sound and light alarm signals to remind the staff to handle in time. The alarm information is displayed intuitively, including specific fault types such as over-voltage, under-voltage, lack of phase, abnormal frequency, etc. , which is convenient to quickly locate and solve the problem.
Convenient communication function: some models are equipped with RS485, Ethernet and other communication interfaces, which can be easily connected with the upper computer monitoring system to realize remote monitoring, remote operation and Remote data transmission. Through the monitoring center, the staff can know the status of the power supply and the working condition of the controller in real time, and issue control instructions remotely, which greatly improves the management efficiency.

Main Technical Parameters

Products model number

Y-701

Y-702

Installation method

Fission type

Display mode

Indicator light

LED

Rated duty

Uninterrupted duty

Self-input and self restore

■

■

Normal port and standby port share to each other

■

■

Generator auto-start function

■

■

Nomal power detect

■

■

Standby power detect

Four-phase lacking phase detection,three-phase over-voltage/under-voltage detection

Passive fire protection input

Four-phase lacking phase detection,three-phase over-voltage/under-voltage detection

(dc9-36v)active fire protection input

■

■

Active fire control input

■

■

Voltage real-time display

■

■

Normal power and standby power indication

□

■

Normal power and standby power

■

■

Over-voltage/under-voltage adjustable

■

■(F/F1)

Generator rev.Stop time adjustable

■

■

Programmable output

□

■

Rs485 communicating function

□

■

Product features

Y-701/702 FUNCTION OF EACH TERMINAL

R-

R+

GND

R1

485B (-)

485A (+)

EGND

□ R-&R+:DC9V-36V active fire control input enabled

□ GND&R1:short circuit,passive fire control unit enabled

□ 485A&485B:RS485--communication terminal,EGND--Frame Ground

Communication protocol parameters:

Local host:1(1-32,can be modified) Baud rate:9600bps

Data bit:8 Parity

bit:none

Stop bit:1

Y-702 Automatic Transfer Switch Controller detail (2)
□ M3,M4:standby power passive closing auxiliary output, outputting time depends on ATS Model; about 3 seconds within magnet exciting coil, Electric type ATS can be more than10 seconds.
□ L2:standby power active closing feedback input, only limited to phase A/B/C
□ A2:standby power phase A output, feedback to the closing standby power.
□ A2,B2,C2,N2:standby power three-phase&four-wire input
□ T1,T2:All off signal output, can be active or passive depends on ATS model, when equipped with PC class three sections ATS, it is 220AC active output, and it is passive when equipped with seclusion type ATS.
□ F2,F1,F:in Y-701 controller,F1 and F are starting generator signal output; in Y-702 controller, F1 and F are programmable output.
□ A1,B1,C1,N1:normal power three-phase&four-wire input
□ A1:A phase normal output, feedback to closing normal power.
□ L1:normal power active closing feedback input, only limited to phase A/B/C.
□ M1,M2:normal power passive closing auxiliary output, outputting time refers to M3&M4. 

Product dimensions

automatic-transfer-switch-6-1

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