MATelec HydroWHIZ FPC-63320-A Mild Steel Three Phase 0.75 kW Variable Speed Three Pump Controller

Water transfer, stormwater and sewage applications requiring three-pump control are managed by the HydroWHIZ FPC-63320-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, with speed adjusted according to system demand.

Coordinating pump control, the controller provides automatic duty alternation and bumpless transfer to rotate active pumps and balance operating hours. 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 and Pipe Fill, with Sleep Assist Speed Minimise ensuring timely sleep transitions. Pumps are started and stopped in sequence to reduce excessive current draw and minimise water surge or hammer.

Proportional speed control responds to level or temperature signals, while PID control handles pressure with adjustable proportional and integral values. Housed in an IP44 mild steel cabinet with integral cooling fan and removable gland plate, the panel includes a colour touchscreen HMI for local monitoring. The touchscreen provides system and individual pump status, operating modes, logged events and diagnostic functions.

Modbus RTU RS485 provides SCADA connectivity, and a volt-free common fault relay delivers remote alarm signalling. Pump circuit breakers and a padlockable mains isolator are fitted as standard.

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.

Features

• Pump anti-seize protection runs pumps periodically during low use to help prevent seizing
• Sleep Assist Boost temporarily increases pressure before sleep, allowing a longer sleep period and reducing pump cycling
• Removable gland plate
• Configurable low-pressure and no-flow protection
• 4-20mA analogue input accepts hydrostatic level or pressure transducers
• Individual pump circuit breaker protection
• Jacking pump control brings Pump 1 out of sleep first, with the main pumps starting when it can no longer keep up with demand