MATelec HydroTOUCH FPC-43220-D Mild Steel 3 kW Variable Speed Dual Pump Controller

Stormwater systems gain balanced dual-pump operation from the MATelec HydroTOUCH FPC-43220-D, a 3 kW controller ready for Modbus RTU RS485 SCADA integration. 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 operation is programmed into the system to prevent electrical surges and reduce mechanical pipe shock during pump cycling. Operating hours are distributed evenly across the pump drives using integrated duty alternation and automatic sharing algorithms.

A 7-inch touchscreen HMI and Setup Wizard 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
• Offers proportional speed control in level mode and PID speed control in other modes
• Balances operating run hours automatically across all pumps via duty alternation and sharing
• 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
• Maintains constant pressure or flow rate using dynamic PID adjustment loops
• Includes individual pump circuit breaker protection for safe circuit isolation
• Implements staggered pump starting and stopping to prevent high starting current and water surge
• Supports Modbus RTU RS485 SCADA protocols for remote monitoring and diagnostics