User`s guide

22 • Signal Connections
3.3 Origin Signal ORG
The origin signals (ORG1∼ORG4) are used as input signals for origin of the
mechanism. The following table lists the relative signal name, pin number,
and the axis number.
CN2 Pin No Signal Name
Axis #
41 ORG1 •
47 ORG2 ‚
91 ORG3 ƒ
97 ORG4 „
The input circuits of the ORG signals are shown as following. Usually, a
limit switch is used to indicate the origin of one axis. The specifications of
the limit switches should with contact capacity of +24V, 6mA minimum. An
internal filter circuit is used to filter out the high frequency spike, which may
cause wrong operation.
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
EX+24V
I
f
=6mA Max.
Filter
Circuit
To PCL5023
ORG
4.7K
EXGND
Inside PCI-8134
CN2
← Switch