6FC5303-0AF50-6AA0 Siemens Membrane Keyboard

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Compliance with the connection conditions of Siemens 6FC5303-0AF50-6AA0 Terminal Keypad
The controller is tested for compliance with the ambient conditions specified below. Trouble-free operation is only ensured if:
• These ambient conditions of 6FC5 303-0AF50-6AA0 are maintained when storing, transporting and operating the equipment.
• Original components and spare parts are used. This applies in particular to the use of specified cables and plug connectors.
• The equipment of 6FC53030AF506AA0 is correctly installed and commissioned.

DANGER
The equipment of Siemens 6FC5303-0AF50-6AA0 Keyboard Membrane may not be commissioned until it has been clearly identified that the machine in which the controller is installed, is in full conformance with the specifications in EC Directive 98/37/EC.

Requirements of DC power supply of 6FC53030AF506AA0 Membrane Keypad Switch
The DC power supply is always referenced to ground and may not be generated by an autotransformer. User interfaces are powered via a DC power supply with protective separation according to EN 61800-5-1. In the case of supply lines 10 m, protectors must be installed at the device input in order to protect against lightning (surge). The DC power supply of 6FC5303-0AF50-6AA0 Operator Panel Keypad must be connected to the ground/shield of the NC for EMC and/or functional reasons. For EMC reasons, this connection should only be made at one point. As a rule, the connection is provided as standard in the S7-300 l/Os. In exceptional circumstances when this is not the case, the ground connection of 6FC5 303-0AF50-6AA0 Membrane Switch should be made on the grounding rail of the NC cabinet (also refer to /EMC/EMC Installation Guide).