Table of Contents
Advertisement
84 Appendix E: Using the I/O lines and controlled- current output of Matrox GatorEye
Connecting to an inductive load device
To connect your Matrox GatorEye to an inductive load device, you must first
connect a high-voltage diode between them. The diode protects your Matrox
GatorEye from sudden voltage spikes, which occur when the signal routed to the
sinking input (that is, the negative side of the load) of the inductive load device
is turned off.
You should connect the negative side of the load and a Matrox GatorEye auxiliary
output line to the anode of the external diode. In addition, you should connect
the cathode of the external diode to the positive side of the load. Connect the
ground of the inductive load device and the ground of your Matrox GatorEye to
a common ground.
Matrox GatorEye
digital I/O and
power connector
Line5
GND
1
Note that the output can
sink up to 100 mA.
When the signal on the Matrox GatorEye output line is enabled (on), the negative
side of the load is reduced to 0 V, and +V appears across the circuit.
External diode
Cathode
Anode
GND
Power
+V
source
Sinking
input
(negative side
of the load)
Inductive load
device
o
Advertisement
Table of Contents
