TABLE OF CONTENTS
SKYFOLD CLASSIC, ZENITH AND MIRAGE RETRACTABLE WALLS
13
COMPONENTS
MOTOR UNITS
Figure 5: Standard Drive Unit
Electromagnetic brake
Electric gear motor
(lifting motor)
Over-torque sensor
Lifting cable
Hydraulic checking
device (safety motor)
Optical encoder
Cable drum
Motor base
Line shaft
Output signal plug
Power switch
Electrical control box
This manual is accompanied by shop drawings that clearly illustrate the location
of the motor.
Electric Gear Motor (Lifting Motor)
Your Skyfold wall system is equipped with a sealed, heavy-duty gear motor that powers the
entire system. This lifting motor is designed for hundreds of stops and starts an hour and is
rated for service several orders of magnitude more severe than the service it experiences
while operating your Skyfold wall.
The lifting motor is equipped with an electromagnetic brake. Power to the lifting motor is cut
and its electromagnetic brake engages automatically when one of the following occurs:
➢
An operator switch is released;
➢
The wall reaches its upper limit (fully retracted into the pocket);
➢
The wall reaches its lower limit (fully closed position);
➢
While descending, the obstruction sensor/infra-red beam (Mirage) is triggered;
➢
While ascending, the over-torque sensor detects excessive torque on the motor;
➢
The thermal-overload relay in models >1hP, which is located in the electrical control
box, detects excessive current being drawn by the motor;
➢
A short circuit is detected on the 12V or 24V line or if the polarity is reversed;
➢
The main power switch, breaker or fuse is tripped.
