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AC Power and Grounding Considerations
AC Power and Grounding Considerations
AC Powered Systems
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NOTE: *AC N should be earth grounded. If it is not earth grounded, it must be fused (refer to local codes).
AC System with CE Compliance NOTE: 140CPS11100, 140CPS11420 and 140 CPS12420 power supplies are designed to not require the external EMI filter, ferrite bead and Olflex cable.
NOTE: To maintain CE compliance with the European Directive on EMC (89/336/EEC), the AC power supplies must be installed per the European Directive on EMC (89/336/EEC). NOTE: 140 XTS 001 00 and 140 XTS 005 00 connector models must be used in systems that must meet closed system requirements as defined in EN 61131-2 (without relying upon an external enclosure). External Line Filters must be protected by a separate enclosure which meets the requirements of IEC 529, Class IP20.
Detail
The following figure shows the details of an AC powered system with CE compliance.
NOTE: Only one ground wire per rack is required. In redundant and summable systems, this lead is not connected for the additional line filter/power supply. NOTE: For detailed wiring diagrams, refer to the part Power Supply Modules Power Supply Modules (seeQuantum using EcoStruxure™ Control Expert, Hardware, Reference Manual)
Part List
Callout Vendor or equivalent Part Number Description Instruction
1 Oflex-Series 100 cy 35005 Line Cord Terminate the shield at panel ground; the filter end of the shield is not terminated.
2 Stewart Fairite 28 B 0686-200 2643665702 Ferrite Bead Install next to the filter and fasten with tie wraps at both ends of the ferrite bead.
3 Schaffner FN670-3/06 Line Filter (fast on terminals) Dimensions: Length:85mm (3.4in) Width: 55mm (2.2in) Height: 40mm (1.6in) Mounting Holes: 5.3mm (0.2in) diameter 75mm (3 in) centerline mounted. Fast on terminals: 6.4mm (0.25in)
4 NA NA Ground Braid Flat braid 134mm (0.5in) with a maximum length of 100mm (4in)
5 Oflex Series 100cy 35005 Shield Cable Maximum length: 215mm (8.5in) Install next to the power supply.
NA
Third lead (green/yellow) is not used; terminate the shield at the power supply ground terminal.
