MATelec HydroWHIZ FPC-63420-J Mild Steel Three Phase 18.5 kW Variable Speed Four Pump Controller

Stormwater, sewage and water transfer with four pumps are addressed by the HydroWHIZ FPC-63420-J, providing variable-speed regulation with level, pressure and temperature operating modes. Its 18.5 kW VSD rating runs from a three-phase 400 Vac supply, matching motor speed to system demand.

Coordinating pump control, the controller provides automatic duty alternation and bumpless transfer to rotate active pumps. Additional pumps are brought into operation as demand increases to maintain the selected setpoint, then removed from service when they are no longer required. Pressure-control functions include jacking pump support, Pipe Fill and Sleep Assist Speed Minimise, with staggered starting reducing excessive current draw and water hammer.

Proportional speed control handles level and temperature regulation, while PID control responds to pressure changes. An IP44 mild steel cabinet provides secure housing with integral ventilation and removable gland plate.

A colour touchscreen HMI provides system and individual pump status, operating modes, logged information, historical faults, run hours, pump starts and trend graphs. Modbus RTU RS485 enables SCADA integration, and a volt-free common fault relay delivers remote alarm signalling.

Configurable protection covers high and low limits, no-flow and pump cycle protection. VSD and system protection functions monitor operating conditions and provide configurable responses to faults such as overload, pressure, level, temperature, no-flow and feedback-signal conditions. Manual operation is available for both the system and individual pumps, with a 10-minute timeout returning the controller to automatic operation.

Features

• Eight auxiliary 24Vdc digital inputs for backup float switches and pressure switches
• Pipe Fill gently builds pipe pressure during startup
• Modbus RTU RS485 supports SCADA integration
• Configurable low-pressure and no-flow protection
• Volt-free common fault output provides BMS signalling
• 4-20mA analogue input for hydrostatic level or pressure sensors
• Sleep Assist Boost temporarily increases pressure before sleep, allowing a longer sleep period and reducing pump cycling