SC-L-2x4A-T34-DOL-WM-FTS

Microprocessor-controlled switchgear for control of submersible sewage lifting units with solids separation system. Individual parameters are entered via symbol-based menu navigation and an operating button.

Functions

• “FTS” operating mode: Control of two pumps in alternating operation. Parallel operation is prohibited on the hardware side and software side!
• Configurable overload protection
• Thermal motor monitoring
• Moisture monitoring
• Adjustable follow-up time
• Automatic pump alteration
• Direction of rotation monitoring
• High water alarm and dry-running protection
• Fault memory for 16 error messages including the type of fault

Equipment

• Ammeter in the switch cabinet door for direct operating control
• Operating mode selection switch (Manual-0-Automatic) for every pump in the switch cabinet door for easy operation during maintenance
• Display of the current operating status and data, as well as faults, using the LCD display and LEDs
• Elapsed time indicator
• Symbol-based menu navigation
• Configuration of operating parameters and operation via operating button
• Motor protection switch
• Free space for installation of additional system accessories
• Remote access via ModBus RTU, BACnet and optionally GSM

Inputs

• 1x analogue precision input 4-20 mA with Zener barrier for level control with level sensors within potentially explosive atmospheres
• 1x input per connected pump for thermal winding monitoring for bimetal or PTC temperature sensor
• 1x input per connected pump for connecting moisture sensors (e.g.: Motor compartment leakage or sealing chamber monitoring)

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 high water alarm
• 1x analogue output 0-10 V for the output of the actual level value

*NOTICE: Power supply must be provided by the customer!

Options

• Version with remote access via GSM, BACnet or LON
• Control for a drainage pump
• Control of the ventilation for the operating space
• Additional connection for moisture monitoring of the operating space
• Voltmeter in the switch cabinet door
• Monitoring the chamber cover upon installation in pump chambers to the concealed floor installation
• Housing for outdoor installation
• Rechargeable battery for mains-independent alarm signal

Configuration

Attention: Signal transmitters are to be provided on-site. Switchgears are not protected against explosions and may be used only outside potentially explosive atmospheres.

Direct connection of a signal transmitter for level measurement within potentially explosive atmospheres is possible (intrinsically safe circuit via Zener barrier). Direct connection of pumps in potentially explosive atmospheres is not possible!