• To protect the device inputs from the effects of industrial electromagnetic interference, the communication lines between device and sensors should be screened. Special cables with shielding or grounded steel pipes of suitable diameter can be used as screens. The cable shielding should be connected to the functional ground terminal (FE) in the control panel. • Network interference filters should be installed in the power supply lines. • It is necessary to install spark-suppression filters in the lines of switching of power equipment. When mounting the system in which the device is used, the rules for effective grounding should be taken into account:
• all grounding lines must be laid in Y-connected circuit, ensuring good contact with the grounding element; • all earthing circuits must be made with wires of the largest possible cross-section; • it is forbidden to connect the device terminal "Common" with grounding lines. 5.2 Getting Started DANGER After unpacking the device, make sure that it has not been damaged during transportation. If the device has been for a long time at a temperature below minus 20 °C, it is necessary to keep it in a room with a temperature corresponding to the operating range for at least 30 minutes before switching on and operation. For connecting the device perform following actions: 1.
Connect the device to a power source. 19