MATelec HydroTOUCH FPC-43420-J Mild Steel Three Phase 18.5 kW Variable Speed Quad Pump Controller

Hot water recirculation demand is shared across four 18.5 kW pumps by the MATelec HydroTOUCH FPC-43420-J, with a pulse flow meter tracking system movement. Operating on a three-phase power supply of 400 Vac at 50 Hz, this controller manages quad-pump setups to ensure system parameters are met. The unit maintains consistent flow, pressure, or level based on real-time feedback from connected analog transducers and digital switches.

Motor frequency is controlled using PID speed control in pressure, flow and temperature modes, or proportional speed control in level mode. Staggered operation is programmed into the system to prevent electrical surges and reduce mechanical pipe shock during pump cycling. Run hours are balanced across all available drives through built-in duty alternation and automatic sharing protocols.

A 7-inch touchscreen HMI and Setup Wizard simplify system commissioning. The diagnostic screens display graphical overview screens, power and water usage charts, and timestamped alarm logs for system maintenance.

Standard terminal connections accommodate dual analog 4-20 mA inputs, up to five 24 Vdc digital inputs, and a pulse flow meter. Standard RCD protection is not recommended because VSD EMC filtering can cause nuisance tripping. If RCD protection is required, Type B RCDs must be used with consideration of VSD earth leakage current.

• Provides configurable transducer inputs for pressure, flow, level or temperature control
• Integrated Setup Wizard on 7-inch color touchscreen HMI simplifies system commissioning
• Equipped with a dedicated Variable Speed Drive per pump for high-precision frequency control
• Optional UV lamp control based on system supply state or pump operation
• Balances operating run hours automatically across all pumps via duty alternation and sharing
• Includes individual pump circuit breaker protection for safe circuit isolation
• Maintains constant pressure or flow rate using dynamic PID adjustment loops
• Features a pad-lockable mains power isolator switch for electrical safety