HydroTOUCH DOL Pump Controller

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

• HydroTOUCH colour touch screen HMI (See interface features)
• HydroTOUCH PCB control module
• Visual (strobe) and mutable audible (buzzer) alarms

Inputs

• Single phase (230Vac) or three phase (400Vac) power supply
• 2x Analogue 4-20mA inputs for level, pressure or temperature transducers
• Up to 5x digital 24Vdc inputs for float or pressure switches or thermostats
• Digital pulse input for flow meter
• Standard terminal setup: Primary and secondary level transducers, backup low and high-level floats, and flow input
• Thermal switch inputs per pump (three phase only)

Outputs

• 1-12 pump supply outputs
• BMS volt-free output for common fault (additional available upon request)
• 2x Analogue 4-20mA BMS outputs for analogue readings
• Output for solenoid valve available upon request
• Modbus RTU Serial RS485 connections for SCADA

Function Features

• Multi-pump Control - Control of up to 12 pumps in any number of duty, duty assist and standby pump configurations
• Pump Limting - 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 Pump Control - Pump manual mode with ability to override system protections for 15 mins, before reverting back to auto mode
• System Types - Level, pressure or temperature control modes
• Control Directions - For emptying or filling a tank
• Pump 1 Mode - Pump 1 can be configured as a main pump, jacking pump or a mixer
• Level Control Mode - Controlled by 4-20mA level transducer and optional backup high- and low-level float switches
• Maintain Minimum Level - Ensures minimum tank level is maintained
• Well Wash Valve Control - When the system has pumped down to setpoint and the pumps have stopped, the system will open the well wash valve for 5 minutes every 24 hours
• Tank Top-up Valve Control - Tops up tank with mains water when normal inflow of rain or treated water into tank does not keep up with demand (available upon request)
• Auxiliary Tank Level Monitoring - Using additional level transducer in auxiliary tank, instead of backup transducer

Fault Protection

• Protection Modes - Most protections feature adjustable modes including alarm (alarm only), lockout (alarm and pump shut-down) and inhibit (pump shut-down, 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 and flow feature auto restart attempts
• Medium Level Protection - Provides an additional level alarm before the high or low level is reached
• Auxiliary Tank Level Protection - High- and low-level protection from floats or level transducer in auxiliary tank
• Auxiliary High & Low Temp Protection - If using additional temperature device instead of backup transducer (specific to temperature mode)
• Pump Anti-seize Protection - Runs pumps periodically during low use to prevent seizing
• Maximum Flow Protection - Activates after pumps run at max flow for 30mins, protecting the system in the event of a burst pipe
• Pump Cycle Protection - Activates if 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
• Low Flow Protection - Alarms and/or shuts down pump or system if a pump is running but there is no flow for 30 seconds, with automatic restart attempts before activating a lockout
• Analogue Fault Protection - Activates faults if analogue inputs fail
• Transducer Redundancy - Switches to backup transducer if primary transducer fails (if using backup transducer)
• Transducer Discrepancy - If difference between primary and secondary transducers exceeds a certain amount, system will use the most appropriate input relative to the setpoint to protect system from overshooting
• Pump Overload Protection - Shuts down pumps on overload, with automatic duty alternation
• Pump Thermal Switch Protection - For three phase pumps
• Filter Blocked Protection - Protects the system when filters are blocked or faulty
• UV Fault Protection - Protects the system when UV filters are faulty

Interface Features

• Main screen with system and pump status, active faults, analogue values
• Individual pump monitoring screen with status, run hours, number of starts, manual control with ability to override system lockouts
• Graphical overview screen for monitoring overall system operation
• Alarm screen with date and time stamped faults
• Logged data screen with water usage graph, trend graphs for pressure, level and flow, pump run timers and system event counters
• System diagnostics screen for easy fault finding, pump rotation testing
• User friendly setup wizard for easy commissioning
• Advanced parameter adjustment