LiftMaster J door operator - Manual (Page 20)

20
ENTRAPMENT PROTECTION
Entrapment Protection
To prevent possible SERIOUS INJURY or DEATH from a closing
door:
• Be sure power is NOT connected to the door operator BEFORE
installing the photoelectric sensor.
• The door MUST be in the fully opened or closed position
BEFORE installing the LiftMaster Monitored Entrapment
Protection device.
To prevent SERIOUS INJURY, DEATH, ENTRAPMENT, or
PROPERTY DAMAGE:
• Correctly connect and align the photoelectric sensor.
• Install the photoelectric sensor beam NO HIGHER than
6" (15 cm) above the floor.
• This is a required safety device for B2, TS, T, and FSTS wiring
types and MUST NOT be disabled. For D1, C2, and E2 wiring
the installation of an entrapment device is recommended.
• LiftMaster Monitored Entrapment Protection devices are for
use with LiftMaster Commercial Door Operators ONLY. Use
with ANY other product voids the warranty.
• If an edge sensor is being used on a horizontal slide door,
then place one or more edge sensors on both the leading and
trailing edge.
• If an edge sensor is being used on a vertically moving door,
then place one or more edge sensors on the bottom edge of
the door.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING
CAUTION
WARNING
WARNING WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIA ADVERTENCIA
LIFTMASTER MONITORED ENTRAPMENT
PROTECTION (LMEP)
Safety Reversing
Sensor
Invisible Light Beam
Protection Area
Safety Reversing
Sensor
— Right Side of Garage — —Left Side of Garage—
Photoelectric Sensor
6" (15 cm) max. above
floor
Invisible Light Beam
Protection Area Photoelectric Sensor
6" (15 cm) max. above
floor
ENTRAPMENT PROTECTION
IMPORTANT INFORMATION ABOUT THE LIFTMASTER
MONITORED ENTRAPMENT PROTECTION DEVICES
A LiftMaster Monitored Entrapment Protection (LMEP) device is
required for most wiring types (refer to page 29). The operator
comes standard with the photoelectric sensors model CPS-U,
additional entrapment devices are available for purchase
(see accessories). If a LiftMaster Monitored Entrapment Protection
device is not installed, constant pressure to close will be required
from the control station.
When properly connected and aligned, the photoelectric sensors
will detect an obstruction in the path of its invisible light beam. If
an obstruction breaks the light beam while the door is closing, the
door will stop and typically reverse to the full open position.
The photoelectric sensors must be installed facing each other
across the door, no more than 6" (15 cm) above the floor.
Each photoelectric sensor has an LED that will glow steady when
the sensor is properly connected and aligned. The LEDs on both
photoelectric sensors will flicker rapidly when obstructed or
misaligned.