Hach sc200, User Manual

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80459-641-01E Model 6 Motor Control Centers
10/2012 Section 6—Maintaining the MCC
© 1999–2012 Schneider Electric All Rights Reserved 59
ENGLISH
8. The operator mechanism-to-structure interlock prevents the control unit
from being withdrawn or inserted with the handle in the ON position (see
Figure 79).
9. If the withdrawn unit is left in the structure, use appropriate lock-out
procedures to avoid re-loading by non-authorized personnel (see
Figure 80).
10. Remove the control unit from the structure for servicing (see Figure 81).
In units with a full bottom plate, additional accessibility to the
components and wiring can be achieved by folding the bottom plate
down. To do so, lean the unit on its back, remove the two front screws,
and fold the bottom plate down (see Figure 82).
NOTE: Lifting plug-on units taller than 24 in. (610 mm) requires two or
more persons using special handling precautions. If lifting devices are
used, see Figure 6 on page 17 for the proper lifting points. Figure 6 also
shows a lifting point that is NOT recommended when lifting larger units.
Figure 79: Operating the Mechanism-to-
Structure Interlock
Figure 80: Locked Out Device
Figure 81: Control Unit Removed
Figure 82: Control Unit with Bottom Plate Folded Down