Chinese Frequency Converter Supplier YS620 Smart Pump VFD for Irrigation & Water Supply

Product Item：YS620

1. Core Customizable Attributes (English, Concise for Importers/Distributors)
Voltage & Power: 220V/380V input, 0.75-22KW selectable
Dual Master Multi-Pump Control: 2 masters + 4 auxiliaries, auto switch + timed rotation
Motor Compatibility: Works with PMSM & asynchronous motors (one unit for two uses)
Protection Grade: IP54  
Easy Operation: quick setup, LCD panel, quick commissioning
Comprehensive Protection: Dry run, overvoltage, phase loss, overload & more
Communication: Dual RS485

Product Detail
FAQs

CLASSICAL YS620 PUMP INVERTER 0.75KW-7.5KW

MUTI-PUMP OPERATION

YS620 series intelligent pump drives: IP65,dust-proof,water-proof and can be mounted directly on the wiring box of motors,compatible with types of transducers.The operation system is easy and simple,reliable and good performance with low noise ,can use pumps to combine work.

Core Product Features

Pump motor protection (phase loss, overload, overvoltage, undervoltage, etc.)
Double main pumps online, backpack installation
Automatic restart for incoming calls and water supply recovery
Intelligent anti-freeze & anti-rust protection
Automatic shutdown in case of water shortage or pipe burst
Compatible with permanent magnet synchronous & asynchronous motors, one machine with two uses (industry-leading)

Industry-Leading Dual Main Pump Master-Auxiliary Multi-Pump System

The host detects pipe network pressure and transmits data to auxiliary units, automatically controlling the auxiliary machines' start/stop status and PID adjustment based on real-time pressure.
The host monitors auxiliary machine status in real time. If the host malfunctions, the standby host automatically takes over; if an auxiliary machine fails, the system skips it and starts the next one, ensuring automatic master-auxiliary switching for the pump set.
Master and auxiliary machines support timed sequential alternate operation, realizing uniform pump utilization and extending service life.

Selection table

Model	Output Power	Input&output Voltage	OutputRated Curren	AdaptiveMotor Power	Outline Dimentions ( mm)			Installation Diameter
	(KW)	(V)	(A)	(KW)	H	W	D	(mm)
YS620-2SR75A0	0.75	Single phase in 220VAC, Three phase out 220VAC	4	0.75	203	128	120	φ 4
YS620-2S1R5A0	1.5	Single phase in 220VAC, Three phase out 220VAC	7	1.5	203	128	120	φ 4
YS620-2S2R2A0	2.2	Single phase in 220VAC, Three phase out 220VAC	10	2.2	203	128	120	φ 4
YS620-4TR75A0	0.75	Three phase in and out 380VAC	2.1	0.75	203	128	120	φ 4
YS620-4T1R5A0	1.5	Three phase in and out 380VAC	3.8	1.5	203	128	120	φ 4
YS620-4T2R2A0	2.2	Three phase in and out 380VAC	5.1	2.2	203	128	120	φ 4
YS620-4T003A0	3.0	Three phase in and out 380VAC	7	3.0	203	128	120	φ 4
YS620-4T004A0	4.0	Three phase in and out 380VAC	9	4.0	286	204	138	φ 6
YS620-4T5R5A0	5.5	Three phase in and out 380VAC	13	5.5	286	204	138	φ 6
YS620-4T7R5A0	7.5	Three phase in and out 380VAC	17	7.5	286	204	138	φ 6

TECHNICAL PARAMETERS

Controlling Characteristic
Starting Torque	0.5Hz100%
Speed Adjustable Range	1:100
Speod-holding precision	±1.0%
Overload Capability	150% rated current for 60s 180% rated current for 1s
Acceleration/deceleration Time	0.1-3600s

Input&Output Parameters
Starting Frequency	0.01~10.00Hz
Input Voltage	220V/380±15%
Input Frequency Range	50/60Hz,fluctuation±5%
Output Voltage	0-rated input voltage
Output Frequency	0-200Hz

Peripheral Interface
Programmable Digital Input	2 way of digital terminal input
Programmable Analog Input	V:0-5V V(remote pressure gauge):0-10V C (pressure transducer ):4-20mA
Replay Output	1 way output,pragrammable
Open Collection Output	1 way output,pragrammable

Use Condition
Installation	Installation should be executed under the conditions of no direct sunlight,dust,corrosive gas,inflammable gas,oil mist,steam and water drop
Altitude	Lower than 1000m, service in derated capacity above 1000m.Derate 1% capacity every 100m increase in temperature
Environment Temperature	-10℃-+40℃,service in derated capacity for 40℃-50℃.Derate 4% capacity every 1℃ increase in height
Humidity	≤95%RH,no water condensation.
Vibration	<5.9m/52(0.6G)

Basic Functions
Command Running Channel	Three kinds of channels:1.Operational panel 2.Control terminal,3.Serial communication port,choose 1 and 2 for master drive and 3 for auxiliaries
Built-in PID	Advanced PID arithmetic to realize closed loop control system
Stall Speed Control	Automatically limit current and voltage at running period to prevent tripping due to frequent overcurrent or overvoltage
Master and Auxiliaries connection	Extensible RS485 design,one drive in the system can be master and controls the other auxiliary drives (4 at most) to work by communication mode,Master drive sends PID feedback information to the auxiliary drives and monitors status of auxiliaries in real time.Any failure of the auxiliary drives does not affect the others
Water Shortage Protection	If the drive detects the pipe pressure is lower than the water shortage pressure set value, the system stops working automatically.After set period time, it restarts automatically for specified times.If pressure restores to normal,system works normally,otherwise,system stops automatically in case of idle running of pump and prolongs pump lifetime to the maximum extent
High Pressure Alarm	When pressure exceeds set pressure,it stops running automatically to avoid damage on pipe network due to high pressure
Automatic Energy-saving Running	Automatically lower output voltage under light loading to save energy
Password Setting	4-bit password can be set with non-zero numbers,Exit password setting interface and the password will be valide in 1 minute
Parameters Locking	Define whether the parameter is locked in running or stopped status in case of misoperation

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FUNCTION OF DOUBLE MASTER CONTROLLED MUTI-PUMPS WORKING SYSTEM

Interoperation between master and auxiliaries by RS485 communication,5 auxiliaries at most.

Main master drive detects pipe pressure and sends the signal to the auxiliary and automatically commands the auxiliary to start or slop according to the pipe pressure and PID status.

Main master monilors the running status of auxiliaries,when the main master failed,the stand by master will aulomatically be switched into main master.When one auxiliary failed,the controlling signal will skip to slartl the next auxiliary,

so the muti-pumps can work alternatively.

Master and auxiliaries can work sequentially to balance the working time of each pump thus exiending lifetime of pumps.

At AUSENIST, we craft intelligent, tailored water pump inverters that turn clients’ unique ideas into high-performance reality. As a global leader in pump-driven smart water solutions, our customized VFDs integrate seamlessly with diverse systems—including agricultural irrigation, fire protection, municipal water supply, sewage treatment, building pressure boosting, mine drainage, and hotel water circulation pumps.

For pump manufacturers, we analyze your product’s power curve, operating environment, and market positioning, leveraging advanced PID control and energy-saving algorithms to build inverters that boost efficiency, extend lifespan, and enhance competitiveness. We also offer flexible OEM/ODM services, regional certification support, and specialized packaging for global shipping.

Backed by end-to-end technical support, our solutions reduce energy costs and simplify operations for end-users worldwide. Partner with AUSENIST, and gain a collaborator dedicated to delivering reliable, customized inverter solutions that meet your exact goals.

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Q: When will you arrange production?
A: We typically initiate production immediately upon receipt of your payment, provided the item is in stock. Otherwise, please consult with us to confirm the lead time.

Q: What is your accepted payment type?
A: We accept wire transfers, Paypal, Western Union, and Alibaba Trade Assurance. However, and Western Union, along with Alibaba Trade Assurance,

Q: Which logistic forwarders do you usually work with?
A: We collaborate with reputable logistics providers such as EMS, TNT, UPS, FedEx, and others. You also have the option to designate your own forwarder for shipment.

Q: What voltage range can you support?
A:

· Single 220V input, three-phase 220V output.

· Three-phase 220V input, three-phase 220V output.

· Three-phase 380V input, three-phase 380V output.

· Single-phase 380V input, three-phase 380V output.

· Single 220V input, three-phase 380V output.

· 220V/380V/480V/690V/1140V.

Q: How do you ensure product quality?
A: Our production strictly adheres to the ISO9001 quality control system. Following four rounds of quality inspection and high-temperature testing, we affix the "QA" pass label.

Q: Do you accept OEM business?
A: Yes, we gladly accept OEM and ODM projects with your authorization.

Q: Can I place a sample order?
A: Certainly, we encourage sample orders for quality testing. Mixed samples are also acceptable.

Q: What is the lead time?
A: Sample orders require 3-5 days, while mass production typically takes 1-2 weeks.

Q: Do you offer a guarantee for your products?
A: Yes, we provide an 18-month warranty.

Q: What is your return policy?
A: We accept returns within 30 days of delivery for items that are damaged or defective. Please contact our customer service team to initiate the return process.

Q: How can I track my order?
A: Once your order is shipped, you will receive a tracking number via email. You can use this number to track your shipment through the respective logistics provider's website.

Q: Are your products compliant with international standards?
A: Yes, our products are manufactured to meet or exceed international quality and safety standards. We ensure compliance with relevant regulations and certifications.

Q: Can I customize the specifications of a product?
A: Yes, we offer customization options for certain products. Please reach out to our sales team to discuss your specific requirements and receive a quote.

Q: What do I do if I encounter technical issues with a product?
A: In case of technical issues, please contact our technical support team. They will provide assistance, troubleshooting guidance, or arrange for necessary repairs or replacements.

Q: Is international shipping available?
A: Yes, we offer international shipping. Shipping costs and delivery times vary based on the destination. Please contact us for specific information regarding international shipments.

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Quanzhou Ausenist Technology Co., Ltd