LP/LD28 Series Product Manual
18
Parker Hannifin Corporation
EMN Automation - Parker
Irwin, Pennsylvania
The limit/home switch installed on the LP28 is a
hall effect sensor tripped by a magnet embed-
ded in the carriage. On the switch body is an
LED to indicate activation, visible through the
clear polycarbonate mounting clip. Normally
open (N.O.), normally closed (N.C.), current
sinking (NPN) and current sourcing (PNP)
variations are selectable with the product. Nor-
mally open sensors are typically used for home
and normally closed are typically used for limits. With a current sinking sensor, the output lead provides a path to ground when acti-
vated, and with a current sourcing sensor, the output lead provides a positive (+) voltage potential relative to ground. Refer to you con-
troller’s manual for compatibility. Limit/home switch information is below. See Appendix A for switch part numbers.
Specifications
H2 or L2 Option
H3 or L3 Option
H4 or L4 Option
H5 or L5 Option
Switch
Type
N.C. N.O. N.C. N.O.
Logic NPN
NPN
PNP
PNP
Operating Voltage
10-30 VDC
Voltage Drop
2.5 VDC Max
Continuous Current
100 mA
Repeatability 100
µm
Max
Reverse Polarity Protection
Yes
Short Circuit Protection
Yes
Power-Up Pulse Suppression
Yes
Enclosure Rating
IP67
Cable Length
3.0 m
Operating Temperature Range
-25°C to +75°C
Wiring Code
Power (+)
Brown
Output Signal
Black
Ground (-)
Blue
Limit/Home Switch Information
