Carlo Gavazzi: Dynamic Motor Starters for 1-Phase Scroll Compressors and Submersible Pumps

March 16, 2020

CARLO GAVAZZI has launched the HDMS Series, a single-phase motor soft-starter. It is an ideal solution for systems used in areas with weak power grids. Its unique design and control algorithm eliminate the need for a traditional start capacitor, effectively increasing reliability. This same innovative control strategy allows the HDMS to easily start Capacitor Start / Capacitor Run (CSCR) motors, and in the case of Permanent Split Capacitor (PSC) motors, virtually eliminate the starting current.

This product offers as much as 70% current reduction when compared to Direct On-Line (DOL) starters, which makes the HDMS the perfect choice for applications such as heat pumps, submersible pumps, or other scroll compressor loads connected to generators or electrical inverters. Innovative features include Near Field Communication (NFC), Modbus communication, and ease of use as the HDMS does not require any user settings or adjustments.

Features of the HDMS include:

  •  –   Single-phase 110 to 230 VAC, 50/60 Hz operating voltage range
  •  –   Self-learning algorithm continuously adapts to load conditions for motor start optimization
  •  –   Broad operational current range: 12, 25, 32, 37 Arms @ 60°C
  •  –   No start capacitor required
  •  –   Tool-free design for quick, error-free installation
  •  –   Data downloads via NFC communication with 143 alarm event storage capacity to expedite troubleshooting
  •  –   Real-time data analysis through Modbus communication
  •  –   Specialized algorithm for scroll compressors and submersible pumps
  •  –   SCR protected relays for increased lifetime
  •  –   2 relay outputs (configurable logic) for Alarm, Top of Ramp
  •  –   Integrated Class 10 motor overload protection
  •  –   Conformal coated PCBs for additional protection against humidity
  •  –   Agency approvals: cULus Listing, CE certification

The HDMS Series Motor Starters are the best choice for increasing reliability, reducing costs on utility contracts and improving motor operation.

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • NVIDIA 800 VDC Architecture Will Power the Next Generation of AI Factories

    November 4, 2025 By Mathias Blake, Martin Hsu, Ivan Goldwasser, Harry Petty and Jared Huntington The exponential growth of AI workloads is increasing data centre power demands. Traditional 54 V in-rack power distribution, designed for kilowatt (KW)-scale racks, isn’t designed to support the megawatt (MW)-scale racks coming soon to modern AI factories.  NVIDIA is leading the transition to 800 VDC data… Read More…

  • Efficient Power Monitoring at the Edge: Moxa’s DCI Solutions for Data Centres

    November 4, 2025 As data centres grow in higher densities to support AI-enabled workloads and more complicated operations, keeping the Power Usage Effectiveness (PUE) at optimum is critical at this time. Downtime is never acceptable. Also, without being able to see electrical systems in real-time, such as substations, UPS, switchgear, and HVAC, failures will take… Read More…