MATelec HydroWHIZ FPC-63420-E Mild Steel Three Phase 4 kW Variable Speed Four Pump Controller

Pressure boosting, water transfer and hot water circulation with four pumps benefit from the HydroWHIZ FPC-63420-E, offering variable-speed regulation with level, pressure and temperature operating modes. Its 4 kW VSD rating runs from a three-phase 400 Vac supply, with speed adjusted according to system demand.

The control module executes duty sharing, rotation and staging as demand changes. Adjustable duty sharing and alternation allow operating responsibility to be rotated between pumps, while bumpless transfer helps maintain smooth operation when the duty pump changes. Sleep Assist Speed Minimise and Sleep Assist Boost extend sleep periods and reduce pump cycling. Pumps are started and stopped in sequence to reduce excessive current draw and minimise water surge or hammer.

Proportional speed control handles level and temperature regulation, while PID control responds to pressure changes. Housed in an IP44 mild steel enclosure with thermostatically controlled fan, the panel includes a colour touchscreen HMI, pump circuit breakers and a padlockable isolator.

Modbus RTU RS485 enables SCADA communication, and a volt-free common fault relay provides remote status indication. 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.

Features

• Pipe Fill gently builds pipe pressure during startup
• Pump anti-seize protection runs pumps periodically during low use to help prevent seizing
• Eight auxiliary 24Vdc digital inputs for backup float switches and pressure switches
• Configurable low-pressure and no-flow protection
• Sleep Assist Speed Minimise gradually reduces pump speed to help the system enter sleep sooner
• Dedicated pump circuit breakers ensure physical electrical isolation for each individual drive
• Circuit breaker protected low-voltage control and input circuitry