Alspa CE80–20 FIP Bus Interface Unit User's Manual
Alspa CE80–20 FIP Bus Interface Unit User's Manual
Alspa CE80–20 FIP Bus Interface Unit User's Manual
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Installation10. SYSTEM GROUNDINGAll components of a control system and the devices it controls must be properly grounded. Groundconductors should be connected in a star fashion, with all branches routed to a central earth ground point as shownbelow. This ensures that no ground conductor carries current from any other branch.ProgrammingDeviceEach TerminalBlockMotor Drives andOther ElectricalControlEquipmentMachineryEarthGroundCentralGround PointNOTESignal and powerconnections not shownEach <strong>Alspa</strong> <strong>CE80–20</strong> Terminal Block has a chassis ground terminal for safety and noise protection. This terminalshould be connected to the conductive mounting panel with a 10 cm (4-inch) maximum length of 2.1 mm 2 (AWGNo.14) wire. Use hardware such as star washers to ensure ground integrity.The control panel and enclosure should also be bonded to the plant system ground per code. Inadequate groundingmay compromise system integrity in the presence of power switching transients and surges.Page 2–10<strong>Alspa</strong> <strong>CE80–20</strong> <strong>FIP</strong> <strong>Bus</strong> <strong>Interface</strong> <strong>Unit</strong> User’s <strong>Manual</strong>ALS 52311 b–en
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