Connecting To The Master Control; Connecting To A Feedback Potentiometer - Varifan SVIM-1LE User Manual

SVIM-1
LE
CAUTION: It is recommended to use an air inlet system
where the motor is able to work without overheating.
Remember that a bad connection of the cables / pulley
between the actuator and the curtain influences the
accuracy of the curtain's positioning.

2.3.3 Connecting to the Master Control

•
Install a #22 AWG shielded cable between the
and the master control. The cable can
SVIM-1
LE
extend to a maximum length of 750 ft (230M).
•
Connect one end of the cable to the (+) and (-)
terminals of the SVIM-1
block. Refer to figures 1 (6) and 2.
ACTUATOR CONNECTION
Note : the wire connecting the SVIM-1/24
actuator can not be longer than 200 ft (60M) and must
have a minimum capacity of AWG # 16. It is also
recommended to select the better wire depending on
the installation. For example, when the distance is too
long or the actuator has a strong current, you need to
use a bigger conductor, in order to avoid voltage
drops.

2.3.4 Connecting to a Feedback Potentiometer

If a feedback potentiometer is used:
•
Connect the
SVIM-1 two terminals indicated as POT on the
LE
left hand terminal. Refer to figures 1 (6) and 2.
•
Connect the common potentiometer wire to the
terminal GNA.
•
Connect the other wire to the terminal POT.
Note: The potentiometer's resistance value must
increase when the air inlet opens.
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low voltage terminal
LE
and the
LE
two potentiometer wires to the