4-3
890CS & 890CD Common Bus Units
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames E & F
Main Points
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These are cubicle-mounted units. They are not suitable for wall-mounting.
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Mount the units vertically on a solid, flat, normally cool, non-flammable, vertical surface.
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The 890CS can be DIN rail or panel mounted, the 890CD is panel mounted.
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Fit the 890 Installation kit to the bottom of the 890CS unit.
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890CS units can be mounted side-by-side requiring no (side) air clearance.
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890CD units do require (side) air clearance.
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Adequate ventilation must be provided.
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Avoid excessive vibration.
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The earth points (D, E, G, M & S) are shown separated - it may be possible to use one large star point
without EMC problems, this will depend upon your application.
Note
Refer to Appendix C for information about EMC compliance.
Sizing the Enclosure
The enclosure must comply with the European safety standards VDE 0160/EN50178 and will require a tool
for opening.
The size of the enclosure will depend on many factors:
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Physical size and number of units
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Ventilation clearances
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Power output, affected by derating due to altitude and ambient temperature