MATelec HydroTOUCH FPC-43220-A Mild Steel 0.75 kW Variable Speed Dual Pump Controller

Made for two-pump water transfer systems, the MATelec HydroTOUCH FPC-43220-A combines 0.75 kW variable-speed control with level feedback from a 4-20 mA transducer. Operating on a three-phase power supply of 400 Vac at 50 Hz, this controller manages dual-pump setups to ensure system parameters are met. Based on real-time sensor feedback, the system adjusts pump performance to maintain the configured operating conditions.

Motor frequency is controlled using PID speed control in pressure, flow and temperature modes, or proportional speed control in level mode. Staggered pump starting and stopping sequences are programmatically executed to prevent electrical current surges and mechanical water hammer. Run hours are balanced across all available drives through built-in duty alternation and automatic sharing protocols.

A 7-inch touchscreen HMI hosts a Setup Wizard to simplify system commissioning. The interface provides detailed system monitoring, including power usage graphs, trend plots for pressure or level, and logged alarm events.

Din rail mounted terminals are provided for dual 4–20 mA inputs for level, pressure or temperature transducers, plus up to five 24 Vdc digital inputs. 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
• Supports Modbus RTU RS485 SCADA protocols for remote monitoring and diagnostics
• Provides configurable transducer inputs for pressure, flow, level or temperature control
• Maintains constant pressure or flow rate using dynamic PID adjustment loops
• Implements staggered pump starting and stopping to prevent high starting current and water surge
• Built-in variable speed drive protections: thermal overload, phase loss, under/over voltage, and earth fault
• Features two assignable analogue outputs for mirroring speed, pressure, or level