LX80L Series Product Manual
31
Parker Hannifin Corporation
EMN Automation - Parker
Irwin, Pennsylvania
Limit and Home Sensor Operation
The LX80L utilizes an innovative method for setting limit and home positions. The optical sensors embed-
ded in the carriage of the LX80L change state based on the limit “flag”. This space saving, compact de-
sign consists of three (3) parts; optical sensors, limit flag, and home flag. The limit and home optical
switches are mounted to a PCB located in the carriage. The limit and home triggers are decals with a
black and white pattern which triggers the switches. These triggers are located on a white decal back-
ground adhered to a vertical rib, which is part of the base.
Option Upgrades
Limits and Homes can not be added to the LX80L table in the field due to the integrated design which
encloses the sensor on a printed circuit board in the carriage. If the optical sensor limit and home are
desired the unit must be returned to the factory on an RMA.
To adjust the operating position of the limits and home, limit/home triggers decals can be adhered on
the white decal background in the base. These adjustable trigger decals (as shown below) are in-
cluded on the decal sheets that ships with the unit.
To change the activation position of the sensors:
Determine desired position
Adjust the Limit Trigger Position
Follow Adjusting Limit Flag Procedure to add to the adjustment
Determining Desired Position
The limit sensors are set at the factory for maximum travel. These factory settings only allow for
3mm (0.12”) before the carriage contacts the end stop. In slow speed applications this may be ade-
quate, however as the top speed of the application increases the required deceleration distance in-
creases. To determine the safe Deceleration Distance the Maximum Speed and the Maximum Ob-
tainable Deceleration Rate must be known or calculated. The maximum speed should be known
from your application requirements. Velocity limits should be set in your program or in your amplifier
to cause a fault if the speed exceeds this value. The maximum deceleration is a factor of load and
available peak force of the table. Using F = ma, calculate maximum acceleration and then required
deceleration distance.
Summary of Contents for LX80L
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