Cumark Es350p Multi-Pump Controller VFD 1.5kw 2.2kw Variable Frequency Drive Frequency Converter for Water Pump Systems

• Customization: Available
• Application: Three Phase Transducer, Single-phase Transducer, High Frequency Converter Transducer
• Output Type: Triple
• Model NO.: ES350P
• Principle of Work: Vector Control Transducer
• Switch Mode: PWM Control
• Main Circuit Type: Current
• Voltage of Power Supply: Low Voltage Variable-Frequency Drive
• Link of Transformation: AC-DC-AC Variable-Frequency Drive
• Nature of DC Power: Current Variable-Frequency Drive
• Function: Pump
• Brand: Cumark
• Condition: 100% Original
• Warranty: 20 Months
• Package: Carton Box
• Shipping Term: TNT DHL FedEx EMS UPS
• Lead Time: 7-12 Days
• Delivery Time: 7-15 Days
• Quality: 100% Tested Workable
• Payment Term: Trade Assurance Tt \Western Union
• Service: OEM/ODM
• Certificate: CE ISO9001 CCC
• Power Range: 0.4-4kw
• Phase: 3 Phase/1 Phase
• Voltage: 380V
• Sample: Approval
• Material: PCB/IGBT
• Transport Package: Cartons or Wooden Cases
• Specification: 24.5*18*10CM
• Trademark: CUMARK
• Origin: China
• HS Code: 8504409999
• Production Capacity: 2000PCS/Month
• Package Size: 24.50cm * 18.00cm * 10.00cm
• Package Gross Weight: 1.300kg

Product Description

Product Description

Product Positioning

Compact and cost-effective water pump dedicated frequency inverter designed for multi-pump constant pressure water supply systems. Ideal for OEMs, system integrators, and engineering projects requiring stable pressure control, easy commissioning, and reliable operation.
 
 
Core Advantages

Compact Size & Space Saving – Small footprint for control cabinets and pump rooms
Easy Commissioning – Optional intelligent LCD keypad, fast parameter setup
Advanced Motor Control – Support SVC vector control
Wide Motor Compatibility – PMSM & asynchronous motor supported
Built-in Smart PID – Stable constant pressure control for water supply
Flexible I/O – 6 digital input terminals
Dual Control Modes – Speed control & torque control
 

Specification

Core Functions: Master-Slave Mode & Multi-Pump Control
Master-Slave Logic: Supports '1 master + N slaves' (up to 8 pumps). Master syncs via CAN bus/DI, manages PID pressure/flow, with slaves following master speed commands. Dual backup enables emergency switching if communication fails.

Mode Classification: Multi-Pump Confluence: Master controls, slaves lack independent commands, ideal for constant pressure; slaves auto-sleep to save energy under low load.

Multi-Master Coordination: Masters switch between confluence and shunt modes; slaves support independent PID. Ideal for zoned supply and complex systems.

Fault Redundancy Switching: If the master fails, the slave assumes control within 0.5s via DI signal, preventing supply interruption. Perfect for 24/7 operations like chemical water systems.

Why Choose ES350 for Multi Pump Water Supply?

1. Dedicated Pump Control, Not a General VFD
ES350 is specially designed for water pump applications, with built-in multi-pump and constant pressure control logic. Compared with general-purpose frequency inverters, it reduces commissioning complexity and improves system stability.

 
2. Stable Constant Pressure with Smart PID
Built-in PID control for precise pressure regulation
Automatic speed adjustment according to real water demand
Ensures stable outlet pressure and smooth water supply
Ideal for residential, commercial, and small municipal water systems.

 
3. Reliable Master–Slave Multi-Pump Operation
Support master–slave control mode
Automatic pump switching and load sharing
Backup pump logic improves system reliability
Reduces pump wear and extends service life
 
4. Energy Saving Under Variable Load
By adjusting pump speed instead of using valves or throttling, ES350 significantly reduces energy consumption during low-demand periods, making it an efficient solution for continuous water supply systems.

 

 

5. Easy Commissioning for Engineering Projects
Compact design, easy to install in control cabinets
Optional intelligent LCD keypad
Simple parameter setup for multi-pump systems
Less on-site debugging time, lower labor cost.
 
6. Wide Motor Compatibility
Support SVC / FVC vector control
Compatible with asynchronous motors and PMSM
Support both speed control and torque control
 
7. Cost-Effective Solution for Multi-Pump Systems
ES350 delivers the key functions required for multi-pump water supply at a competitive price, making it ideal for OEMs, system integrators, and engineering contractors.
 
Typical Applications
Constant pressure water supply systems
Building booster pump stations
Secondary water supply
Industrial circulation water systems

Packing & Delivery

Packing & Delivery

Packaging:repackaged in export standard cartons or wooden box (Cartons for inverters under 45 k, woden box for inverters over45 kW), with internal foam protection Each inverter is wellprotected to avoid damage during transportation. OEM packaging, private label and customized
cartons are supported
Shipping:
By sea, by air or by express (DHL, FedEx, UPS, TNT).
Shipping terms: EXW, FOB, CIF, DDP available.
Delivery Time:
Samples: 3-5 working days
Mass production: 7-15 working days

Certifications

Packaging & Shipping

After Sales Service

After Sales Service

Warranty: We offer 20 Months free warranty service.
Technical Support: We provide 24-hour phone and online technical support, ensuring quick response to customer needs.
On-Site Service: Upon request, we can dispatch technicians to provide on-site services, including installation, commissioning, and maintenance.

FAQ

FAQ

Q1,Can I use my own logo or design on the product?
Yes, OEM/ODM services available; your logo/design can be applied.

Q2,Do you have a factory?
Yes, visit our professional manufacturing facility.

Q3,How is the production capacity of your factory?
We can produce 2000 units monthly.

Q4,When to ship?
Inventory ships in 5 days. Custom products in 2 weeks.