4.1.2.6 Contactors behind the power supply
4.1.3 Earthing
4.1.3.1 Overview
4.1.3.1.1 What is earthing or grounding in an electrical system?
4.1.3.1.2 Hazards of electricity
4.1.3.2 Earthing concepts
4.1.3.2.1 Protective Earth
4.1.3.2.2 Functional Earth
4.1.3.3 Extra Low Voltage systems
4.1.3.4 SELV, PELV, FELV power supplies
4.1.3.5 Earthing connections in SOMANET Products
4.1.3.6 Earthing consideration (guidelines)
4.1.4 Regenerative energy
4.1.4.1 Estimation of regenerated energy
4.1.4.2 Braking chopper
4.1.5 Measuring the brake output voltage
4.1.5.1 Non-safety brake output
4.1.5.2 Safety brake output
4.1.6 Configuring analog inputs
4.1.6.1 Overview
4.1.6.2 Measuring analog input voltages
4.1.6.2.1 Single-ended input
4.1.6.2.2 Differential input
4.1.6.2.2.1 Example for normal values (On SOMANET Node)
4.1.6.2.2.2 Examples of faulty values
4.1.6.2.3 Temperature Sensor input
4.1.6.2.4 Internal Resistance
4.1.7 Using Statusword and Controlword
4.1.7.1 Overview
4.1.7.1.1 What are Control- and Statusword?
4.1.7.1.2 How are they used?
4.1.7.1.3 Manufacturer and Operation mode specific bits
4.1.7.2 Bits in Status- and Controlword
4.1.7.3 Statusword
4.1.7.3.1 General structure
4.1.7.3.2 Mode specific bits of the Statusword
4.1.7.3.3 Internal limit Active bit
4.1.7.4 Controlword
4.1.7.4.1 General structure
4.1.7.4.2 Mode specific bits of the Controlword
4.1.7.5 Timing Diagram
4.1.8 Temperature sensors
4.1.8.1 Types of temperature sensors
4.1.8.1.1 Thermocouple
4.1.8.1.2 Thermistors
4.1.8.1.3 Resistance temperature detectors
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