ADLINK PCI-8134A - Manual (Page 33)

Signal Connections
• 23
When the motion controller is operated at the home return mode, the ORG
signal is used to stop the control output signals
(OUT and DIR). For the
detail operation of the ORG, please refer to section 4.3.3
3.4
End-Limit Signals PEL and MEL
There are two end-limit signals PEL and MEL for one axis. PEL indicates
end limit signal in plus direction and MEL indicates end limit signal in minus
direction. The relative signal name, pin number and axis number are shown
in the following table.
CN2 Pin No Signal Name Axis
# CN2 Pin No Signal Name Axis #
37 PEL1  87 PEL3 
38 MEL1

88 MEL3

43 PEL2  93 PEL4 
44 MEL2

94 MEL4

The signals connection and relative circuit diagram is shown in the following
diagram. The external limit switches featuring a contact capacity of +24V,
6mA minimum. You can use either ‘A-type’
(normal open) contact switch or
‘B-type’
(normal closed) contact switch by setting the DIP switch S1. The
PCI-8134/PCI-8134A is delivered with all bits of S1 set to OFF, refer to
section 2.10. For the details of the EL operation, please refer to section
4.3.2.
EX+24V
I
f
=6mA Max.
Filter
Circuit
Motion ASIC
PEL
MEL
4.7K
EXGND
Inside PCI-8134/PCI-8134A
CN2
 Switch