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To adjust each individual limit switch, turn the screw
adjustment for each specific limit switch. Note that
depending upon the handing of the operator the cams
travel from either the clockwise or counterclockwise
direction to activate the appropriate snap switches.
(e) With the power turned off, manually swing the
door to the full close position. Check to see LSC (limit
switch close) is engaged. You can see the pointed cam
engaged the limit switch roller. Adjust the limit switch by
turning the limit switch adjusting screw until the cam just
engages the roller. You should hear the snap switch click
when it is actuated.
(f)
With the power turned off, manually swing the
door to the full open position. Check the see LSO
(limit switch open] is engaged. You can see the cam
engaged the limit switch roller. Adjust the limit switch by
turning the limit switch adjusting screw until the cam just
engages the roller.
(g) With the power turned off, manually swing the
door to the full close position. Check to see LSCC
(limit switch creep close) is engaged. You can see the
extended can engage the limit switch roller. Adjust the
Crown Industrial Operators • 213 Michelle Ct. • So. San Francisco, Ca 94080-6202
4
Figure 6. Safe Swinging Power Door Operating Speeds
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limit switch by turning the limit switch adjusting screw
until half of the extended cam travels past the roller.
When this limit switch roller is engaged the door will
travel at the creep speed during the closing cycle (creep
speeds are desirable during the final opening and
closing positions for smooth operation).
(h) With the power still off, manually swing the
door to the full close position. Check to see LSCO (
limit switch creep open) is engaged. You can see the
extended can engage the limit switch roller. Adjust the
limit switch by turning the limit switch adjusting screw
until half of the extended cam travels past the roller.
When this limit switch roller is engaged adorable travel
at the creep speed during the opening cycle.
(3) Turn the Electric Clutch Controller in a
counterclockwise direction until "off".
(4) Turn the run-speed pot clockwise about half-way and
then turn the creep-speed pot clockwise to about 1/8 of
the way. Reference electrical schematic for the location
of both run and creep pots. Reference Figure 6. Safe
Swinging Power Door Operating Speeds.
G-1001
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