Nocchi CPS3-10

Summary

Product identification

• NOCCHI THREE-PHASE ELECTRONIC FREQUENCY CONVERTER CPS3-10

Overview and Features

The CPS3-10 is an electronic device designed to vary the frequency of an electric pump, incorporated directly on the motor. It enables control of pump speed to provide constant pressure even with changes in water demands. It offers a compact, essential, reliable, and practical solution, designed for comfort and benefits across a wide range of sectors. The CPS range features a discreet and stylish design with a backlit graphic display that updates the user in real-time on all operating parameters.

This device supplies the electric motor of the pump where it is installed and, via a feedback system using a pressure transducer, varies the power supply frequency according to changes in water demands. The aim is to maintain constant pressure levels on the pump outlet according to a set point value. CPS ensures high levels of efficiency and improved flexibility in performance, guaranteeing optimal energy savings and eliminating the need for supplementary control devices.

Applications

• Pressure booster systems
• Water supply
• Industry
• Construction
• Washing
• Also applicable in irrigation, pressure booster systems and water transfer, residential, commercial and industrial applications.

Functions

• Pressure measurement with the option of managing 2 separate levels settable via an internal timer or via an external connection
• Start and stop
• Internal clock
• Calculation of motor speed
• Protection against dry-running
• Protection against overcurrent and undercurrent
• Protection against overvoltage and undervoltage

Operating limits

• Ambient temperature: +0°C to 50°C
• Protection rating: IP55 (if installed on motors with protection rating of IP55 or higher)

Electrical

• Power supply voltage (inverter): 3x380 - 3x500 Vac ± 10% sinusoidal 50/60 Hz
• Inverter output voltage: 3x400 Vac ± 10 %
• Maximum nominal power: 7.5 kW
• Input frequency: 50/60 Hz + 3%
• Maximum nominal output current: 16 A
• Waveform: sinusoidal
• Inlet filter compliant with EMC directive
• Interface connectivity: RS 485 serial port
• Optional contacts: 3 (external set-point, alarm, system disable)

Protection Devices

• Dry-running
• Current overload
• Electronics overheating
• System disable via external contact

Control Panel

• Backlit display (automatic shutoff after a set time and illumination by pressing any key)
• Bar graph indicating percentage of motor use
• Display of weekdays
• Display of instant values / set parameters / clock / alarm messages / etc.
• Signal of access to programming
• Unit of measurement of parameter displayed
• Buttons:
  • Modify display of instant operating pressure (BAR or PSI) or operating frequency
  • Start/Stop/Reset
  • Access to settings and to confirm changes made
  • Modify changes made during settings phase
  • Modify set point values
• LEDs: Line (green), Operating (green) / Alarm (red)

Mechanical / Hydraulic Performance and Dimensions

The CPS3-10 is an electronic device incorporated directly on the pump motor. The document provides detailed hydraulic performance tables and overall dimensions and weights for the CPS3-10 when combined with specific Nocchi pump series (MULTINOX-VE and VLR models).

• Pressure transducer: 0 - 5 Volt - 0 - 10 Bar or 0 - 20 Bar (depending on pump model).
• Combined Unit Models (examples):
  • CPS3-10 MULTINOX-VE 200/110
  • CPS3-10 MULTINOX-VE 200/140
  • CPS3-10 VLR 2B-130 A
  • CPS3-10 VLR 4-80 A
  • CPS3-10 VLR 4-120 A
  • CPS3-10 VLR 8-60 A
  • CPS3-10 VLR 8-80 A
  • CPS3-10 VLR 8-100 A
  • CPS3-10 VLR 8-120 A
  • CPS3-10 VLR 16-40 F
  • CPS3-10 VLR 16-60 F
  • CPS3-10 VLR 16-80 F
  • CPS3-10 VLR 32-2 F
  • CPS3-10 VLR 32-3 F
  • CPS3-10 VLR 32-4 F
  • CPS3-10 VLR 66-10 F

See the official PDF for exact tabulated values for hydraulic performance (P2, Volt, In, Q, H) and overall dimensions (A, B, C, D, E, DN, L in mm) and weights (kg) for these combined units.

---

Disclaimer: This summary is based solely on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror