PD20 Series Smart Pro Pump Drive

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Website: http://vfd-drive.com/2-3-pd20-series-smart-pro-pump-drive.html

PD20 series smart pro pump drive has an IP65 rated enclosure, providing excellent dustproof and waterproof performance. It is possible to be mounted on various types of pump motor junction boxes and compatible with a broad range of pressure sensors. Our smart pro pump drive is featured by high reliability, low noise level, stable performance as well as easy operation. The expansion RS485 interface can be configured independently from standard RS485 interface, preventing affect to each other. Coupled with independent RTC, this system is capable of accomplishing multi-pump control for both the main and auxiliary pumps.

Power range

220V single-phase input: 0.75-2.2kW
380V three-phase input: 0.75-18.5kW

Features

Superior protection
Excellent dustproof and waterproof performance
Perfect fitting, lightweight and stable operation
CE certified
Designed in accordance with international standard certificate requirements
Supporting export to worldwide
Improved water supply function
Two RS485 communication interfaces, suitable for monitoring multiple pump operation
RTC function, time-based and programmable
Completely activating various functions of the pump
Europe introduced design concept
Deliberate design represents exceptional quality
Precise processing provides high reliability
Wide range of applications
Non-negative pressure water supply system
Secondary pressure-boosting water supply system
Water treatment, circulating water system
Air conditioning cold and hot water system
Small water supply system for villa

Specifications

Control Features	Control Mode	V/F Control
	Startup Torque	1Hz 100%
	Speed Adjustment Range	1:20
	Speed Accuracy	±1.0%
	Overload Ability	20% Rated current 60s, 150% rated current 1s
	V/F curve	Straight line；quadratic curve
	Acceleration and Deceleration Time	Acceleration and deceleration time range：0.1-800s
Input and Output Features	Input Voltage Range	220V/380V±15% Single Phase 220V/Three Phase 380V±15%
	Input Frequency Range	50/60Hz±5%
	Output Voltage Range	Three phase 0-rated input voltage
	Output Frequency Range	0~50/60Hz
Outer Port Features	Programable Digital Input	2-way digital input terminals
	Communication Ports	Standardly equipped with 1-way sheilded RS 485, can be extended with another way of RS 485
	Programable Analog Input	2-way, can be set as current/voltage input by parameter settings; input voltage range: 0-10V; input current range: 0/4-20mA
	Analog Power Supply	Dual power supply: 4-13V (adjustable)/24V
	Relay Output	1-way output, programable
	Open Collector Output	1-way output, programable
	Analog Output	Reversed
Basic Functional Features	Operation Command Route	4 Routes: 1. Keypad control; 2. Digital input terminal control; 3. Communication control; 4. Water inlet pressure control
	Built-in Clock	Built-in RTC for LCD keypad series
	PID Built-in PID	Advanced PID calculation, convenient to realize close-loop control
	Host-auxiliary online system	Can be extended to dual RS 485 communication; A driver can be set as the host in the system to control the work of other auxiliary drivers by communication (up to 5 auxiliary drivers). The host sends PID feedback to the auxiliary drivers and detects the state of them in real time. If there is an error, it will automatically skip this auxiliary driver, you can set a backup host. The host can communicate with the upper machine at the same time without being affected; The auxiliary drivers can also communicate with other devices at the same time.
	AVR Function	Can automatically keep the output voltage stable when grid voltage fluctuates; This function is invalid when gird voltage decreases as factory setting.
	Stall Control	Automatically limit output current and voltage during running, to prevent frequent overcurrent and overvoltage trips
	User Password Setting	A 4-digit password can be set, which is a non-zero number; after setting, exit the password setting interface, it will take effect after 1 minute
	Parameter Lockup Function	Define whether the parameters are locked under running or stop state to prevent misoperation
Pump control functions	Automatic Energy Saving Running	Automatically lower output voltage at light load to achieve energy saving
	Automatically Startup when Powered on	Optional: automatically startup when powered on, or startup delay
	Antifreeze Function	Antifreeze operation selection, frequency, time, period
	Water Leak Detection	Optimizing dormancy control by water leakage detection coefficient
Water Supply Protection	High Pressure Warning	Detect the feedback pressure and protect the pipe network
	Low Pressure Warning	Detect the feedback pressure and protect the pipe network & pump
	Dry Run Protection	There are a variety of dry run protection detection methods (including sensorless methods). When the driver detects that the water pressure of the pipe network is lower than the dry run pressure, the system automatically stops working, and after a set time, it automatically restarts a specified number of times, if water pressure recovers to normal, the system enters the normal working state, otherwise, the system automatically shuts down to prevent the pump from idling in the absence of water, and extend the service life of the pump to the greatest extent.
Application Environment	Altitude	Less than 1000m, derating above 1000m, 1% per 100m
	Environment Temperature	-10 ℃ ～ ± 40 ℃, 40 ℃ -50 ℃ derating, 4% per 1 ℃
	Vibration	< 5.9/S2(0.6G)
	Storage Temperature	-40℃~ 70℃
	Installation Environment	Being dust and splash proof, the product is installed in a place not exposed to direct sunlight. Note: Although this product has a high grade of protection, it is not an explosion-proof product, and is not allowed to immerse in water.

Application of PD20 Pump Drive in a Public Bath Center

The public bath center in Jixi city is a large-scale leisure facility that integrates bathing, accommodation and catering, where a large amount of water is required. Under this condition, they required frequency conversion constant pressure water supply system to realize automatic operation on the basis of power and water saving. Taking into account the difference in the amount of water required in different functional areas, we have designed a suitable solution tailored to their frequency conversion drive application.

Features

The VFD has a splash-proof enclosure and easy for wiring, which can be directly mounted on the back side of pump, eliminating the installation of the VFD inside the control cabinet and greatly saving space and cost.
Each variable frequency pump is operated independently, the pressure can be adjusted and freely set.
The system can be operated automatically after being powered on, it eliminates the need for professional electrician and significantly saves labor costs.
It is featured by stable pressure, high uniformity of cold and hot water, providing customers with comfortable experience.

Diagram

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