MATelec HydroWHIZ FPC-63220-A Mild Steel Three Phase 0.75 kW Variable Speed Two Pump Controller

Two-pump control in water transfer, stormwater and sewage applications with fluctuating load profiles is managed by the HydroWHIZ FPC-63220-A, providing variable-speed regulation with level, pressure and temperature operating modes. Its 0.75 kW VSD rating runs from a three-phase 400 Vac supply, matching motor speed to 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. Sleep Assist Boost and Pipe Fill reduce pump cycling and gently build pipe pressure during startup, with smooth bumpless transitions between drives. Pumps are started and stopped in sequence to reduce excessive current draw and minimise water surge or hammer.

Housed in an IP44 mild steel enclosure with thermostatically controlled fan, the panel includes pump circuit breakers, a padlockable mains isolator and a colour touchscreen HMI with logged data and diagnostics. The touchscreen provides system and individual pump status, operating modes, logged information, historical faults, run hours, pump starts and trend graphs. A volt-free common fault relay provides BMS signalling, and Modbus RTU RS485 supports SCADA integration.

Configurable protection covers high and low limits, no-flow and feedback-signal faults. 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. Pump limiting can be configured where maximum flow or power requirements need to be kept within defined system limits.

Features

• Volt-free common fault contact for building automation feedback
• Pipe Fill gently builds pipe pressure during startup
• Padlockable main isolating switch allows the incoming power supply to be physically isolated during servicing and maintenance
• Circuit breaker protected low-voltage control and input circuitry
• Thermostatically controlled fan provides enclosure ventilation
• Removable gland plate
• Sleep Assist Speed Minimise gradually reduces pump speed to help the system enter sleep sooner