Control unit contains inputs and outputs or, in other words, I/O pins of many different types. There are, for example, outputs which source current and outputs which sink current. Furthermore, there are I/O pins which can be used as inputs or as outputs at the control of the application programmer.
The following table contains a summary of configurable I/O pins in Epec 3724 control unit:
|
Max |
Pin Type |
Info |
DI |
AI |
FB |
PI |
DO |
PWM |
|
|
PNP (sourcing) |
NPN (sinking) |
||||||||
|
24 |
3 A |
x |
|
|
|
x |
|
x |
|
|
4 |
pull-down to GND |
|
|
|
|
|
x |
|
|
|
8 |
pull-down to GND |
x |
|
|
x |
|
|
|
|
|
4 |
pull-down to GND |
x |
|
|
|
|
|
|
|
|
2 |
0-5 V / 0-22 mA |
x |
x |
|
|
|
|
|
|
|
6 |
0-5 V / 0-22 mA |
x |
x |
|
|
|
|
|
|
|
4 |
0-2 A |
|
|
x |
|
|
|
|
|