B. MOUNTING THE OPERATOR
Mount the operator according to the chosen illustration
on page 2. The operator must be installed level. With
the door in the closed position drill the door to receive
the door bracket (Note: fasteners are supplied by
others). Attach the arms from the operator to the door
bracket. Manually swing door open and closed ensuring
both the door and operator function freely.
C. WIRING OPERATOR AND CONTROLS:
(1) No. 1502 Electric Operators are intended for
applications with motor branch circuits that have voltage
and current characteristics to meet the operators’
ratings. Branch circuit, branch circuit disconnecting
means, and branch circuit over current protection are to
be properly sized in respect to the operators’ horsepower
rating.
WARNING: Insure operator branch circuit is
disconnected from power source when installing,
adjusting or servicing operator.
(2)
Be sure all power is off.
Wire the electric operator
and controls according to the wiring diagrams provided
in the installation packet.
D. START-UP:
(1) Confirm all wires are correctly connected to
terminals. Reference wiring schematic provided in the
installation packet.
(2) LIMIT SWITCH ADJUSTMENT:
(a)
Disconnect the Electrical Power Supply to the
Operator Control Box.
(b) Unscrew limit switch cover and expose assembly.
Reference
Figure 3. Rotary Cam Limit Switch
Assembly
.
Note: For right hand pull to open or left hand push to
open operators.
(
a)
LSO = Limit Switch Open
(Wired Normally Closed)
This limit shuts off the electric operator when the
door reaches the full open position. (Light on
PLC turns
OFF
when activated)
(b)
LSC = Limit Switch Close
(Wired Normally Closed)
This limit shuts off the operator when the door
has reaches the full closed position. (Light on
PLC turns
OFF
when activated)
(c)
LSCO = Limit Switch Creep Open
(Wired Normally
Open)
This limit activates the creep mode during the
end of open cycle. When the limit switch is
actuated the door travels in the open direction at
a reduced speed. (Light on PLC turns
ON
when
activated)
(d)
LSCC = Limit Switch Creep Close
(Wired Normally
Open
)
This limit activates the creep mode during the
closing cycle. When this limit switch is actuated
the door travels in the closed direction at a
reduced speed. (Light on PLC turns
ON
when
activated)
U.L. recognized snap-action
switches. Supplied as
SPDT, DPDT optional.
Rotary Cam Limit
Switch Assembly
SRLS51-( )-SP4
Plastic planetary gear
reduction stages. Sun gear
is input, ring gear is
stationary, planet carrier is
output. No lubrication.
17.5
29
75
Independent cam
adjusting screw with
self-locking adjustment.
Gear switching stages are
same as gear reduction
stages except cam is on
planet carrier. Sun gears
connected in parallel.
Primary gear stages yield
mulitiplier for
input/cam shaft ratio.
Figure 5. Rotary Cam Limit Switch Assembly
Crown Industrial Operators • 213 Michelle Ct. • So. San Francisco, Ca 94080-6202
Phone: (650) 952-5150 • Fax: (650) 873-1495
www.crown-industrial.com Email: [email protected]
G-1001
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