LP/LD28 Series Product Manual
21
Parker Hannifin Corporation
EMN Automation - Parker
Irwin, Pennsylvania
Limit/Home Switch Adjustment - LP28
Travel limit sensors signal the motor to stop whenever the carriage is approaching the end of travel. The
home sensor provides a fixed reference point to which the carriage can be commanded to return repeatedly.
If equipped, the LP28 limit and home switches are installed at the factory but not set. To adjust the switches,
loosen the screw that secures the mounting clip using a #0 Phillips driver, slide the clip and switch into the
desired position, and retighten. Take care not to overtighten the screw to avoid damaging the mounting clip.
The switches can be oriented on the positioner with their cable toward the motor or toward the end cap. In
cases of shorter travel length, it will be necessary to orient one switch with its cable in the opposite direction
relative to the other switch or switches.
Printed on the body of the switch is a target (crosshairs). Limit switch settings to utilize full travel are 37mm
and 31mm from the target centerline to the end of the base profile for the motor and end cap locations, re-
spectively.
The switches are identifiable by a cross reference part
number printed on the body. These numbers are pro-
vided in the table to the right:
Limit/Home Option
Part Number
H2 or L2
003-3743-07
H3 or L3
003-3743-05
H4 or L4
003-3743-08
Cross Reference
P8S-GMFLX
P8S-GNFLX
P8S-GQFLX
H5 or L5
003-3743-06
P8S-GPFLX
