HydroWHIZ Soft Start Pump Controller

Function Features

• Multi-pump Control - Control of up to 6 pumps in any number of duty, duty assist, and standby pump configurations.
• Pump Limiting - For limiting max flow or power requirements.
• Duty Sharing and Alternation - Adjustable duty change period and bumpless transfer.
• Pump Staging and Destaging - Additional pumps are staged into operation to maintain setpoint and destaged when no longer required.
• Staggered Pump Start and Stop - Prevents excessive current draw and reduces water surge or hammer.
• Manual Control - Manual modes for system and pumps with a 10-minute timeout to revert back to auto mode.
• System Types - Level, pressure, or temperature control.
• Control Directions - For emptying or filling a tank, boosting or dropping pressure, and heating or cooling temperature.
• Level Control Mode - Controlled by a 4-20mA hydrostatic level transducer and/or low, duty stop, duty start, standby starts, and high-level float switches, submerged in a tank or pit.
• Tank Top Up Valve Control - Tops up the tank with mains water when normal inflow of rain or treated water into the tank does not keep up with demand (specific to level mode).
• Maintain Minimum Level - Ensures minimum tank level is maintained.
• Pressure Control Mode - Controlled by a 4-20mA pressure transducer and/or low, duty start, standby starts, and high-pressure switches.
• Jacking Pump Control - Pump 1 will always be the first to wake from sleep, and main pumps will start if unable to keep up with demand (specific to pressure mode).
• Mains Bypass Valve Control - Switches to mains water to bypass supply tank when the pumping system is out of water or in a fault condition (specific to pressure mode).
• Temperature Control Mode - Controlled by a 4-20mA temperature transducer and/or low, duty start, standby starts, and high-temperature thermostats.
• Sleep Modes - Sleep can be enabled to allow pumps to sleep when setpoint is reached or disabled so one pump is always running to circulate water (specific to temperature mode).

Enclosure

• IP56 rated, powder-coated mild steel enclosure with inner door and removable gland plate.

Protection

• Pad-lockable mains power isolator switch.
• Circuit breaker protected low voltage control and input circuitry.
• Individual pump isolation.
• Contactor and thermal overload protection of pump motors.
• Din rail-mounted terminal connections.

Control & Interface

• HydroWHIZ colour touch screen HMI (See interface features).
• HydroWHIZ PCB control module.
• Visual (strobe) and mutable audible (buzzer) alarms.
• Soft starter per pump with adjustable soft start & stop.

Inputs

• Single phase (230Vac) or three phase (400Vac) power supply.
• Analogue 4-20mA input for level, pressure, or temperature transducer.
• Up to 8x digital 24Vdc inputs for low, stop, start, standby start, and high float switches, pressure switches, or thermostats, system enable/disable input, and a low flow switch.
• Thermal switch inputs per pump (three-phase only).

Outputs

• 1-6 pump outputs.
• BMS volt-free output for common fault.
• Analogue 0-10V output (mirrors analogue input).
• Output for solenoid valve available on request.
• Modbus RTU Serial RS485 connections for SCADA.

Fault Protection

• Protection Modes - Apply to most protections and include alarm (alarm only), lockout (alarm and pump shutdown), and inhibit (pump shutdown only, no alarm).
• High and Low Level, Pressure or Temperature Protection - Alarm and/or shutdown on high and low level, pressure or temperature depending on the system type, low-pressure protection features automatic restart attempts.
• Auxiliary Tank Level Protection - Pump shut-down on supply tank low or destination tank full.
• Pump Anti-seize Protection - Runs pumps periodically during low use to prevent seizing.
• Maximum Run Protection - Activates after pumps run at max speed for 30 mins, protecting the system in the event of a burst pipe, with automatic restart attempts.
• Pump Cycle Protection - Activates if the system goes to sleep but wakes up within 5 seconds, 10 times in a row, due to a faulty non-return valve or similar fault preventing the system from maintaining pressure.
• No Flow Protection - Activates if a pump is running but there is no flow for 30 seconds (if using a flow switch instead of a low-level float), with automatic restart attempts.
• Feedback Signal Fault Protection - Shuts down all pumps in the event of a transducer failing.
• Pump Overload Protection - Shuts down pump/s on overload, with automatic duty alternation.
• Pump Thermal Switch Protection - For three-phase pumps.

Interface Features

• Main screen with system status, auto/off/manual modes.
• Pump screens with status, logged data, and auto/off/manual control.
• Alarms screens with mute/reset, date & time stamped historical faults.
• Logged data with system event & fault counts, pump starts, run hours.
• Analogue feedback value trend graph.
• Streamlined, user-friendly system setup process.
• System diagnostics for easy fault finding, factory reset.