E-Solutions

Summary

Product identification

This document describes Grundfos E-Solutions, a range of control systems and components for various pumping applications. Key products covered include:

• Grundfos Dedicated Controls (DC): A control system designed for commercial buildings or network pumping stations, managing up to six wastewater pumps and an optional mixer or flush valve.
• Grundfos Control Multi Pump Control (MPC) - CU 352: A complete control cabinet with a built-in multi-pump control unit, designed for controlling and monitoring up to six identical pumps in parallel.
• Grundfos Control SPMP 204: A control cabinet for regulating water supply by switching a Grundfos SP pump on and off based on pressure.
• LC and LCD level controllers: (Further details are truncated in the provided extract. See the official PDF for more information.)

Grundfos Dedicated Controls (DC)

Components:

• CU 362 control unit (combined controller and user-friendly control panel)
• Up to three IO 351B modules (general I/O module)
• Up to six IO 113 protection modules (optional)
• Up to six MP 204 motor protectors (optional accessory)
• Up to six CUE or VFD frequency converters (optional accessory)

Supported Pumps:

• SEG
• SE
• DP
• EF
• SL
• S
• Similar wastewater pumps of other makes

Communication Interfaces (CIM modules):

• CIM 050: External GENIbus (Cable, RS-485)
• CIM 150: Profibus DP (Cable, RS-485)
• CIM 200: Modbus RTU (Cable, RS-485)
• CIM 250: Modbus/SMS messaging (GSM/GPRS)
• CIM 270: Grundfos Remote Management (GRM) (GSM/GPRS)

Features:

• Pump start/stop, alternating operation, overflow detection and measurement, alarms and warnings, start and stop delays, free language selection.
• User-defined functions, alternation between groups, start level variation, combi alarms, daily emptying, foam draining, anti-seizing, safety after-run delay, mixer or flush valve control, maximum number of started pumps, pump/system flow measurement and calculation.
• With IO 113: Monitoring of insulation resistance, moisture in motor, water in oil.
• With MP 204: Anti-blocking, monitoring of voltage, current, current asymmetry, phase sequence, cos φ (power factor), power, energy, insulation resistance, temperature (Pt100/Pt1000, PTC, Tempcon).
• With CUE or VFD: Anti-blocking, automatic energy optimisation, specific-energy test, output frequency, monitoring of voltage, current, phase sequence, power, energy, torque (some functions CUE-specific), reverse start, run/stop flushing, PID control.
• Remote monitoring and control via GSM/GPRS or Grundfos Remote Management web server.
• Data logging (alarms, runtime, flow, overflow, volume, energy, etc.).

Grundfos Control Multi Pump Control (MPC) - CU 352

Applications:

• District heating systems
• Heating systems
• Air-conditioning systems
• District cooling systems
• Industrial cooling systems
• Booster systems
• Industrial processes
• Water supply systems

Supported Pumps:

• CR(E), CRI(E), CRN(E)
• NB(E), NBG(E)
• NK(E), NKG(E)
• TP
• TPE Series 1000
• TPE Series 2000
• HS
• SP
• MAGNA, UPE Series 2000
• Note: Main pumps must be of the same type and size.

Variants:

• Control MPC-E/EC: For 2-6 identical electronically speed-controlled pumps.
  • 0.37 to 22 kW: Integrated frequency converter (one per pump).
  • 30 to 75 kW: External Grundfos CUE frequency converters (one per pump).
• Control MPC Series 2000: For 2-6 identical Grundfos MAGNA, UPE, or TPE Series 2000 pumps.
• Control MPC-F: For 2-6 identical mains-operated Grundfos pumps connected to one external Grundfos CUE frequency converter.
• Control MPC-S: For 2-6 identical mains-operated Grundfos pumps.

Communication:

• Ethernet connection
• External GENIbus connection (option)
• Other bus protocols: PROFIBUS, LON, Modbus, PLC via Grundfos CIU communication interface units

Grundfos Control SPMP 204

General Construction:

• Regulates water supply by switching a Grundfos SP pump on/off based on pressure from an external pressure switch.
• Control cabinet designed for wall-mounting.
• Includes an integrated MP 204 electronic motor protection device.

Functions (Basic Version):

• Demand-dependent on/off control via pressure switch or level-dependent float switch.
• Pump follow-up time adjustable from 50 ms to 1 h.
• Water shortage / protection against dry running.
• Fault indication via illuminated push button.
• Complete motor protection via MP 204.

Operating limits

Grundfos Control Multi Pump Control (MPC) - CU 352

• Ambient temperature:
  • Control MPC-E/EC, Control MPC-F, Control MPC-S: 0 to +40 °C
  • Control MPC Series 2000: 0 to +50 °C
• Relative humidity: 95 % (all variants)
• Enclosure class (IP class): 54 (all variants)

Grundfos Control SPMP 204

• Ambient temperature: 0-40 °C
• Storage temperature: 0-40 °C
• Relative air humidity: Max. 95 %
• Installation: Indoor only, dry, well ventilated, frost-free location, not exposed to direct sunlight. Not allowed in potentially explosive environments.

Electrical

Grundfos Dedicated Controls (DC)

• Standard Control Panel:
  • Main switch (Work-0-Generator)
  • Terminals for external power generator supply input
  • Pump switches (Automatic-0-Manual)
  • Outside service plug 3 x 400 V
  • Inside service plug 230 V
  • Motor starters: DOL, star/delta, softstarter, electronic protection (MP 204), variable speed drive (CUE)
  • Phase control, short-circuit protection, overcurrent transformer.
• Controller Specifications:
  • Up to nine digital and five analogue inputs from sensors with current 0-20 mA, 4-20 mA or voltage (0-10 V).
  • Connection for analogue water in oil sensor.
  • Surveillance and handling of alarm conditions for PT100 or PT1000 sensors.
  • Tripping or warning for: overload, underload, too high motor temperature, overvoltage, undervoltage, power factor, current unbalance, loss of communication.

Grundfos Control Multi Pump Control (MPC) - CU 352

• Motor size: 0.37 - 75 kW (up to 315 kW available on request).
• Frequency converter:
  • Integrated, one per pump: 0.37 - 22 kW (MPC-E/EC, MPC Series 2000)
  • External Grundfos CUE: 30 - 75 kW (MPC-E/EC), 0.55 - 75 kW (MPC-F)
• Supply voltage, frequency: Example: 3x380-415V, 50/60Hz, PE (from type key).

Grundfos Control SPMP 204

• Rated power: 0.06 - 132 kW per pump.
• Rated current:
  • DOL: 0.22 - 245 A
  • SD: 0.22 - 245 A
• Supply voltage: 3 x 400/230 V 50 Hz/ N/ PE.
• Motor protection:
  • MP 204: 3-120 A (DOL and SD)
  • By external current transformer: more than 120 A (DOL and SD)
• Inputs:
  • On/off remote control
  • Min./max. pressure switch (1-pole transmitter)
  • Water shortage / protection against dry running (1-pole transmitter)
• Outputs (potential-free to central line control station):
  • Operation indication
  • Fault MP 204
  • Common alarm
• Fuses: F01 (control voltage), F1 (MP 204), F10 (motor).

Mechanical / hydraulic

Grundfos Dedicated Controls (DC)

• Control Panel: Metal cabinet with single door (standard), double-door (option).
• Display: Large graphical display (min. 90 x 120 mm).
• Options: Version for outdoor placement, frame for wall mounting, panel stand for cement or foundation mounting.
• Mixer option: Up to 1.5 kW.

Grundfos Control Multi Pump Control (MPC) - CU 352

• Control cabinet: Grey coated steel, available for wall- or floor-mounting.
• CU 352 unit: Placed in the door of the control cabinet, features an LCD display, ten buttons, and two indicator lights.

Grundfos Control SPMP 204

• Cabinet/enclosure class: Steel plate/IP54.
• Dimensions: Depending on motor power.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the official OEM PDF. For contractual data and complete specifications, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

Lenntech datasheet mirror