PathPilot USB I/O card
Our USB I/O card is a direct replacement for for the
similar item from Tormach. Installation is simple and involves a one
time copy of a small text file to your PathPilot controller. If you
want to know how to do this installation, follow the
instructions here. The USB I/O card is
our shop. Full documentation on the board and its customisable
programming environment are available in the
To download and install the (Windows based)
configuration app required to access the customisation functions, click on
this link. View the version history
of the configuration app here.
- Power. Unlike the Tormach I/O board, this one
does not rely on power from the host computer via the USB cable.
Instead, our I/O card has a separate connector for 24Vdc. Your
Tormach mill already has a 24V supply in its wiring cabinet and this is
ideal. The maximum total power draw of the I/O board is 1.5A and
there is an onboard, self-resetting fuse to limit it even under fault or
short circuit conditions.
- Outputs. The 4 outputs are opto-isolated,
open collector transistor that act as switches to the 24V ground
connection. The output connector has 8 pins, with the 24V supply's +ve
and the 4 outputs alternating. This makes it neat and simple to wire
relay coils or pneumatic solenoid valves as the two wires to the coil
connect to adjacent terminals on the USB I/O's output connector.
- Inputs The inputs are also opto-isolated and
these require ~2.5mA to activate. One end of the isolator input is
connected to the +ve side of the 24V power supply, so to activate the
input, you simply short it to ground. The input connector has
alternating ground and input pins, so any switch type sensor can simply be
connected between adjacent pins on the input connector.
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