AC Power and Grounding Considerations

AC Powered Systems

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: 140 CPS 111 00, 140 CPS 114 20 and 140 CPS 124 20 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

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:85 mm (3.4 in) Width: 55 mm (2.2 in) Height: 40 mm (1.6 in) Mounting Holes: 5.3 mm (0.2 in) diameter 75 mm (3 in) centerline mounted. Fast on terminals: 6.4 mm (0.25 in)	Install next to the power supply.
4	NA	NA	Ground Braid Flat braid 134 mm (0.5 in) with a maximum length of 100 mm (4 in)	NA
5	Oflex Series 100cy	35005	Shield Cable Maximum length: 215 mm (8.5 in)	Third lead (green/yellow) is not used; terminate the shield at the power supply ground terminal.