ADLINK Technology cPCI-8168, User Manual

Page: 37 / 208

Signal Connections 27
3.3 Origin Signal ORG
The origin signals (ORG1~ORG8) are used as input signals for
origin of the mechanism.
The input circuits of the ORG signals are shown as following. Usu-
ally, 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 poor 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).