A
B
C
D
Tube Notch
For All Round Tubes
Motor End
Idler End
A
B
1. TUBE PREPARATION
2. PREPARING THE TUBULAR MOTOR
3. FITTING THE MOTOR INTO THE TUBE
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Cut the tube to the required length (B), taking into account
the width of the installation (A), the motor end clearance,
which includes motor head and motor bracket thickness
(C), and the idler end clearance, which includes idler end
cap and idler bracket thickness (D). (See Fig. 1)
USE FORMULA TO DETERMINE MEASUREMENTS.
Remove all burrs from the ends of the tube and ensure that
the inside of the tube is clean.
For all round tubes, notch the tube on the motor end to the
dimensions A & B. (See Fig. 2)
Carefully pull open the one piece crown in order to fit over
the body of the motor. Slide the opening of the crown
wheel over the recessed part of the motor's limit switch unit
and close it over the Raised Key. (See Fig. 3)
Fit the drive wheel onto the output shaft of the motor.
For round tubes: Measure the drilling length R according to
the motor type listed in the table below.
(See Fig.4 &
5) Secure the drive wheel to the tube using four 5/32 steel
pop rivets or four #10 screws.
Fit the motor into
the tube ensuring that the notch at the end of the tube
slides over the raised key on the crown wheel.
Fit the end plug into the
other side of the tube and secure it with three steel pop
rivets. Use only fasteners with steel grades SAE 5 or higher.
Metric fasteners must be grade 8.8 or higher. (See Fig. 6)
LS40 Motor
Installation Instructions
B =A-(C+D)
Fig. 1
Fig. 2
LS40
MOTOR
TYPE
R
in. / mm
401F1
404R2
404S2
409R2
412R2
16.6/421
16.6/421
16.6/421
16.6/421
16.6/421
A
B
Length =
Width =
.335 / 8.5
.236 / 6
Notch: LS40
in./mm
in./mm
Fig. 6
R
Fig. 3
Raised Key
Fig. 4
Raised Key
Notch
Fig. 5
Notch
Raised Key
4. LIMIT SWITCH SETTING
SOMFY strongly recommends using a Tester Cable (T.C.) Cat.
No. 6020086 to set the motor limits, and to ensure the system
is operating correctly before the final electrical connection is
made. Refer to Step 6 "Trouble Shooting Guide" for any
problems encountered.
Two positions have to be set: the UP & DOWN positions,
this is where end product will stop automatically.
UP POSITION
DOWN POSITION
