LP/LD28 Series Product Manual
20
Parker Hannifin Corporation
EMN Automation - Parker
Irwin, Pennsylvania
Payload Mounting - LP28
Payload is mounted to the LP28 using M3x0.5 tapped holes in the load plate. Six holes exist in the top of the
load plate and four exist in the side. When fastening to the load plate, take precaution in using screws with
no more than 5.5mm of engagement, as to not damage the positioner. See Chapter 2 for hole location. The
hole patterns are designed to build X-Y and X-Z configurations using only accessory toe clamps. If doing so,
be certain not exceed the moment load specifications outlined in Chapter 2.
Use Appropriate Length Bolt
The LP28 design requires proper size bolts to be used when mounting payloads to the load plate.
Excessive length bolts can cause damage or pin the table in position.
Leadscrew Nut Attachment - LD28
The LD28 leadscrew nut is attached to its mating component using a 7/16-20 male thread on the nut. See
Chapter 2 for dimensional specifics. If the leadscrew nut needs to be removed from the leadscrew in order to
install the actuator, preload will need to be reset. See Chapter 5 for procedure.
The LD 28 has approximately 8mm total overtravel (travel distance in addition to nominal travel) that must be
taken into consideration when installing the actuator. The overtravel is in place so the leadscrew nut is not
required to move over the extreme ends of the screw during use. At the fixed end there may be
≤
2mm of
length that contains traces of adhesive, and at the free end there will be a chamfer
≤
2mm long on the end of
the screw, rendering these areas undesirable for travel of the nut. Further, extreme care should be taken not
to travel the leadscrew nut so that it makes contact at the fixed end, because this will change preload setting
and possibly cause damage.
