1Before commencing the installation• Disconnect the power supply of the device.• Ensure that devices cannot be accidentally restarted.• Verify isolation from the supply.• Earth and short circuit.• Cover or enclose neighbouring units that are live.• Follow the engineering instructions (AWA/IL) of thedevice concerned.• Only suitably qualified personnel in accordance withEN 50110-1/-2 (VDE 0105 Part 100) may work onthis device/system.• Before installation and before touching the device ensurethat you are free of electrostatic charge.• The functional earth (FE) must be connected to theprotective earth (PE) or to the potential equalisation. Thesystem installer is responsible for implementing thisconnection.• Connecting cables and signal lines should be installed sothat inductive or capacitive interference does not impairthe automation functions.• Install automation devices and related operating elementsin such a way that they are well protected againstunintentional operation.• Suitable safety hardware and software measures shouldbe implemented for the I/O interface so that a line or wirebreakage on the signal side does not result in undefinedstates in the automation devices.• Ensure a reliable electrical isolation of the low voltage forthe 24 volt supply. Only use power supply units complyingwith IEC 60364-4-41 (VDE 0100 Part 410) or HD 384.4.41 S2.• Deviations of the mains voltage from the rated value mustnot exceed the tolerance limits given in the specifications,otherwise this may cause malfunction and dangerousoperation.• Emergency stop devices complying with IEC/EN 60204-1must be effective in all operating modes of the automationdevices. Unlatching the emergency-stop devices must notcause restart.• Devices that are designed for mounting in housings orcontrol cabinets must only be operated and controlledafter they have been installed with the housing closed.Desktop or portable units must only be operated andcontrolled in enclosed housings.• Measures should be taken to ensure the proper restart ofprograms interrupted after a voltage dip or failure. Thisshould not cause dangerous operating states even for ashort time. If necessary, emergency-stop devices shouldbe implemented.• Wherever faults in the automation system may causedamage to persons or property, external measures mustbe implemented to ensure a safe operating state in theevent of a fault or malfunction (for example, by means ofseparate limit switches, mechanical interlocks etc.).Eaton Industries GmbHSafety instructionsDanger!Dangerous electrical voltage!