Chamberlain HS670 - Manual (Page 14)

14
A D J U S T M E N T
To reduce the risk of SEVERE INJURY or DEATH:
• Disconnect power BEFORE performing ANY adjustments.
ATTENTION
AVERTISSEMENT AVERTISSEMENT
AVERTISSEMENT
WARNING WARNING
CAUTION
WARNING
WARNING
PRECAUCIÓN ADVERTENCIA
ADVERTENCIA ADVERTENCIA
RPM SENSOR (HALL EFFECT) ADJUSTMENT
NOTE: Normally the RPM sensor (Hall effect) does not need
adjustment, but may go out of alignment due to shipping
vibration or rough handling.
These operators use an internal entrapment protector system.
This system consists of the control board, magnet, and RPM
sensor (Hall effect). It may become necessary to adjust the
sensor for correct alignment. To do so please perform the
following steps:
1. The sensor must be centered over the magnet wheel. Adjust
with horizontal screws.
2. The sensor must be level.
3. The sensor air gap should be adjusted to .010 - .015 of an
inch. (The thickness of a business card may be used to gauge
the correct distance). Adjust with vertical screws.
FORCE ADJUSTMENT
MOTOR LEARN FUNCTION (FORCE PROFILE)
This function is preprogrammed at factory. If either board or
motor is replaced, the controller will need to be programmed to
“LEARN” the specific motor RPM profile of your operator. Switch
“S3” is provided for this. This is important for accurate force
control. Failure to do so may result in improper and unsafe
operation.
NOTE: Motor Learn must be performed in stand alone mode.
1. The operator must remain attached to the gate throughout the
entire process.
2. Press the motor learn button. The yellow LED should start to
flash rapidly.
3. Push and hold down either the open or the close buttons. The
motor will run for a few seconds and then stop. If the LED
goes out the motor is learned. If the unit activates a limit
before completing the learn or some other error occurs the
LED will go back to on continuously. If this happens try
learning while running in the opposite direction.
FORCE CONTROL
Set the force control pot such that the unit will complete a full
cycle of gate travel but can be reversed off an obstruction without
applying an unreasonable amount of force. On most operators
this will be around the middle of the range.
NOTE: For LED location refer to illustration on page 16.
Motor
Learn
Button (S3)
Cover Screws
Cover
Bushing
Shaft Retainer
Magnet
Vertical Adjustment
Screws
Horizontal Adjustment
Screws
RPM Sensor
(Hall Effect)
Shaft