Switchgear with microcontroller for level-dependent and pressure-dependant control of one or two submersible pumps

Functions

• Three different control modes for a broad field of application:
  • “Drain” control mode: For draining wells
  • “Filling” control mode: For filling tanks and rainwater storage tanks
  • “p-c” control mode: For constant pressure control
• Configurable overload protection
• Thermal motor monitoring
• Pump kick function
• Automatic pump alteration (for switchgear for 2 pumps)
• Service life optimisation (for switchgear for 2 pumps)
• Standby pump (for switchgear for 2 pumps)
• Automatic fault-actuated switchover (for switchgear for 2 pumps)
• Adjustable follow-up time
• Direction of rotation monitoring
• High water alarm with forced switch-off of the connected pump(s)
• Dry-running protection for the pump(s)
• Fault memory for 10 error messages including the type of fault

Equipment

• Display of the current operating status and data as well as faults, using the LCD display and LEDs
• Symbol-based menu navigation
• Configuration of operating parameters and operation via operating knob
• Main switch
• Remote access via ModBus
• Integrated alarm buzzer

• Mains connection: 1~220/230 V, 50/60 Hz or 3~230/380/400 V, 50/60 Hz
• Max. rated power (P₂) per pump: 4 kW or 9 kW
• Maximum rated current I_N per pump: 12 A or 23 A
• Activation type: Direct
• Control voltage: 24 V DC
• Ambient/operating temperature: 0 … +40 °C
• Storage temperature: -30 to +60 °C
• Max. relative humidity: 90%, non-condensing
• Housing material: Polycarbonate, UV-resistant
• Protection class: IP54
• Electrical safety: Pollution degree II

Switchgear with microcontroller for level-dependent and pressure-dependant control of one or two submersible pumps using analogue or digital signal transmitters. Individual parameters are entered via symbol-based menu navigation and an operating knob.

Inputs

• 1x analogue precision input 4 – 20 mA for pressure control with pressure sensor for controlling 1 or 2 pumps
• 1x digital input for pressure control with pressure switch for controlling a pump
• 2x (for 1 pump) or 4x (for 2 pumps) digital inputs for a level control device with electrodes or float switches
• 1x (for 1 pump) or 2x (for 2 pumps) digital inputs for dry run level of the pump(s) with electrodes or float switches
• 1x digital input for the high water level in the tank with electrode or float switch
• 1x (for 1 pump) or 2x (for 2 pumps) inputs for thermal winding monitor with bimetallic temperature sensor – connection of PTC and Pt100 sensors is not possible!
• 1x digital input for external on/off for remote control of the unit

Outputs

• 1x potential-free contact for the collective run signal (SBM)
• 1x potential-free contact for the collective fault signal (SSM)
• 1x potential-free contact for the individual run signal (EBM) per pump
• 1x potential-free contact for the individual fault signal (ESM) per pump
• 1x analogue output 0-10 V for the display of the actual pressure value (only in “p-c” control mode)