MATelec HydroTOUCH FPC-43120-E Mild Steel 4 kW Variable Speed Single Pump Controller

The MATelec HydroTOUCH FPC-43120-E brings smooth 4 kW variable-speed control to single-pump pressure boosting systems, with Modbus RTU RS485 connectivity built in. This controller operates on a standard three-phase power supply of 400 Vac at 50 Hz, adjusting VSD speed based on live transducer inputs. Connected instrumentation feedback allows the control module to adjust VSD frequency dynamically, ensuring efficient water management.

Motor frequency is controlled using PID speed control in pressure, flow and temperature modes, or proportional speed control in level mode. The controller adjusts the connected pump speed in response to system feedback to support stable operation.

An integrated Setup Wizard on the 7-inch touchscreen HMI simplifies system commissioning. The interface provides detailed system monitoring, including power usage graphs, trend plots for pressure or level, and logged alarm events.

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.

• Equipped with a dedicated Variable Speed Drive per pump for high-precision frequency control
• Features a pad-lockable mains power isolator switch for electrical safety
• Maintains constant pressure or flow rate using dynamic PID adjustment loops
• Provides up to ten assignable volt-free outputs for remote BMS status monitoring
• Built-in variable speed drive protections: thermal overload, phase loss, under/over voltage, and earth fault
• Includes individual pump circuit breaker protection for safe circuit isolation
• Housed in an IP44-rated, powder-coated mild steel enclosure with integrated ventilation
• Provides variable speed operation to adjust the connected pump in response to system demand