Available Options for Control Cabinets: Functional Overview

1. Supervisory Control (Signal Outputs)

• "Run" Status—monitoring the operation of one electric motor (implemented via a changeover contact on the terminal block).
• Network Monitoring—indication of the status of one input power supply (changeover contact on the terminal block).
• "Automatic" Mode—signaling the current cabinet operating mode (changeover contact).
• Dry Run Protection— Alarm signal for critical working fluid level (changeover contact).

2. Data Transmission Interfaces

• Modbus RTU—data exchange via the RS-485 interface.
• Modbus TCP/IP—network data transmission via Ethernet.

3. Additional Equipment on the Front Panel

• Hourmeter—records the operating time for one electric motor.
• Ammeter—visually monitors the current of one electric motor.

4. Climate performance

• UKHL1—outdoor operation in the temperature range from -60°C to +40°C.
• UKHL2—placement under a canopy (without direct exposure to sunlight or precipitation) or in an unheated room (range: -60°C to +40°C).

5. External control connections

• Remote start/stop—remote control in automatic mode.
• Safety key— Blocking/enabling the operation of one electric motor.

6. Protection and Monitoring Systems

• Voltage Monitoring—protection against overvoltage/undervoltage on the input line.
• PTC Sensor—thermal protection for one electric motor.
• Pt100/Pt1000 Sensors—highly accurate temperature measurement of one electric motor.
• Differential Pressure Switch—monitoring the hydraulic mode of one pump.
• Dry-Running Protection— Emergency shutdown of one electric motor in the absence of a working medium.