Photoelectric
Safety Sweep for Movable Shelving
The EZ-Roller 8 movable shelving
system system also has a
photoelectric safety sweep which
consists of two components that work
together; they are the emitter
 and
the receiver. The emitter is located
at one end of the long side of the
carriage while the receiver is
located at the opposite end of the
same carriage. In addition to
protecting individuals, the
photoelectric safety sweep also
protects items that may have been
inadvertently left in the aisle.
Once the beam of light has been
interrupted, the Emergency Stop Loop
light is triggered and must be
cleared before the system will
operate.
 Motion
Sensors for Movable Shelving
Motion sensors are perfect for
sensing a person moving in and out
of the aisle. Once the motion sensor
has detected a person entering the
aisle, the unit is electronically
halted.
Motor Current
Monitoring System (MCMS)
Another safety feature is the Motor
Current Monitoring System or MCMS.
The MCMS Logic within the
 controller
monitors any change in current being
drawn by the motor. Detection of the
change will trigger an immediate
stop command to cease carriage
movement. Basically, a moving
carriage will be stopped when it
encounters an obstruction that
offers twenty-five pounds of
resistance. When you exert the
pressure, the carriage will stop and
the Emergency Stop will begin
flashing.
Additionally,
when the weight of items stored on
the mobile carriage is either
increased or decreased, the change
will automatically be detected by
the controller and the carriage
running and stopping speeds will be
instantaneously adjusted to meet the
new weight load.
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membranes
which open the system. We call it “Soft
Touch” because the membrane is activated by
the electricity generated by the human body,
as opposed to activating the control by some
kind of mechanical switch which can wear out
over time. A new aisle is created by simply
touching either side of the desired new
aisle location. The oversized touch areas
also allow for “hands-full” operation which
reduces access time when you have your hands
full of file folders. 
technology
to regulate carriage stopping by allowing
each carriage to know where it is in
relation to the other carriages in the
system. This allows all of the carriages to
follow each other in a consistently timed
manner, even if the carriage loads vary. The
distance sensors also control the soft stop
action of the carriage. When the sensor
detects that it is within 4” of its
preprogrammed destination, it signals the
control box to slow the motor down before
stopping. This soft stopping greatly reduces
the wear and tear on motors and extends the
useful life of the system.
The
system employs a passive safety system.
Every time an aisle opens the system becomes
activated and prevents the aisle from
opening until the lights are cleared. The
red LEDs on the Stop Panels are illuminated
on both sides of the opened aisle. Simply
touch the illuminated