Overview

CU 351 is a flexible control unit for controlling and monitoring of up to six identical pumps + a pilot pump. CU 351 serves as the controller for Grundfos Hydro MPC booster sets and Control MPC systems. CU 351 is a flexible control unit for controlling and monitoring of up to six identical pumps + a pilot pump. CU 351 is a flexible control unit for controlling and monitoring of up to six identical pumps + a pilot pump. CU 351 serves as the controller for Grundfos Hydro MPC booster sets and Control MPC systems.

The CUE series are frequency converters for the speed control of a wide range of Grundfos pumps.

The Grundfos CUE is the latest addition to our E-solution range of speed-controlled pump systems designed for a series of applications such as industry, building services, municipal or private water supply, wastewater and irrigation. This new series of wall-mounted frequency converters with features and functions for Grundfos pumps and a special user interface offers features similar to those of the Grundfos E-pumps, which are fitted with motors with an integrated frequency converter.

With a CUE solution you can control the speed of virtually any Grundfos pump, irrespective of size, power range, and application area.

Applications

• The CU 3X2 must not be installed in explosive environments, but may be used together with Grundfos pumps approved for installation in potentially explosive environments. Warning If the CU 3X2 is used in a manner not specified by the manufacturer, the protection provided by the CU 3X2 may be impaired. TM05 3044 0912 Pos. Description 1 LCD display 2.
• Cable is broken or short-circuited. Repair or replace the cable. CU 351 fault Connect the electricity supply. The Control MPC is stopped and cannot - Electricity supply disconnected. CU 351 defective. Contact Grundfos. Page 63 Closed circuit current: 2.6 mA, DC 15. Taking out of operation Inputs for PTC sensors are electrically.

The CUE is a frequency converter for Grundfos pumps, providing a series of predefined functions which make the converters easy to use in almost all application areas. A series of predefined control modes, such as constant pressure, proportional pressure, constant level or constant flow, makes it very easy to set up a system in only a few steps. A special start-up guide will lead you through the set-up of the CUE.

Features and benefits

• Speed control of Grundfos pumps
• Simple set-up
• Predefined control modes
• Predefined range of sensors
• Predefined pump family data
• Shares interface with control equipment
• Additional functions available
• Automatic setting of direction of rotation
• 16 steps to get a system up and running

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Benefits

• Easy start-up guide
• Predefined settings
• Energy-saving

Literature

Sales Brochure

CUE

Data Booklet

CUE

Quick Guide

CUE

Installation & Operation Manual

CUE

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Overview

Grundfos Control MPC is a control cabinet with a CU 351 controller that permits monitoring and control of up to six identical pumps connected in parallel. It comes with everything needed to get started, and contains software optimised for your particular application. Control MPC will minimise energy consumption and cut energy costs straight out of the box. With application-optimised software, you have complete control over the pumps in your system. Features such as automatic cascade control ensure the highest possible system energy efficiency.
As the only system on the market, Control MPC knows exactly which – and how many – pumps to control, and will optimise performance and minimise energy consumption based on user-supplied pump curve data.
With Control MPC, there are no communication barriers. You are free to choose between a wide range of operating languages, and Control MPC supports communication with monitoring equipment or other external units via a number of different fieldbus protocols:

• Ethernet (VNC server is standard in Control MPC)
  
• PROFIBUS via CIU modules
  
• LON via CIU modules
  
• Modbus via CIU modules
  
• GSM and GPRS via CIU modules
  
• PLC via IO 351B modules
  

The Control MPC is designed and built to the same exacting quality standards as all other Grundfos products. Features such as standby pump allocation, forced pump changeover and dry-running protection help to increase your system reliability and decrease downtime and costly maintenance. All it takes for you to start enjoying these Control MPC benefits is to follow the simple installation wizard, which helps you set the desired parameters in the correct sequence.

Applications

• Pressure boosting
  
• Heating
  
• Cooling
  
• Air-conditioning.

Features

• Efficient cascade control
  
• Setpoint influence
  
• Individual pump control
  
• Alternative setpoints
  
• Clock program
  
• Proportional pressure regulation
  
• Alternation
  
• Standby pumps
  
• Pump test run
  
• Pilot pumps
  
• Stop at low flow function
  
• Soft pressure build-up function (minimises risk of water hammer)
  
• Emergency run
  
• Flow estimation
  
• Dry running protection
  
• Ethernet

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Benefits

• Reliable and easy to use
• Energy-efficient cascade control
• Pipe protection function

Literature

OPTIMIZED INDUSTRIAL SOLUTIONS (Product brochure)

Grundfos provides a comprehensive range of optimized solutions for the North American process and industrial markets. Grundfos is a full-line supplier of reliable products and robust service offerings for an array of applications.

Grundfos 59896288 P1 Manual

Grundfosliterature-1665196.pdf (2 MB)

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For service questions, warrantee information, energy audits or to schedule repair, please contact us.

Grundfos Pumps Manuals Pdf

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Ask a Product Question

Grundfos Manuals Pdf

To request information on products, installation, operation or service, please contact us.