Limit Switches And E-Stop Signal - CS-Lab CSMIO/IP-A Manual

4.13.3 Limit switches and E-STOP signal.

The easiest option ensuring a necessary safety is to use two (2) switches, both sides of an axis. In this
case one switch works only as safety LIMIT signal and the other has double function: LIMIT and HOMING.
In our example of three axis plotter, we are homing the X and Y axes on the negative side (towards de-
creasing coordinates), so the double function will be performed by LIMIT-- switches. And we are homing Z
axis upward and up move usually, on CNC machines is a movement in the positive direction. So for Z axis
the double function will be performed by LIMIT++ switch.
CSMIO/IP-A signal
CSMIO/IP-A connector
Input 3(+)
Input 4(+)
Input 5(+)
Input 6(+)
Input 7(+)
Input 8(+)
Input 9(+)
Input 3-9(-)
Optical inputs in CSMIO/IP-A require both '+' and '-' potentials connection. The '-' Pins of digital inputs
used are connected to 0V potential - see "Power supply" section.
C S - L a b s . c . – C S M I O / I P - A - C N C c o n t r o l l e r
PIN number on
4 X LIMIT--
(X HOME)
5 X LIMIT++
6 Y LIMIT--
(Y HOME)
7 Y LIMIT ++
8 Z LIMIT--
9 Z LIMIT++
(Z HOME)
10 E-STOP
17-23 '-' potential for inputs: 3-9
Function Mach3 Port
(Port&Pins)
10
10
10
10
10
10
10
Mach3 Pin
(Port&Pins)
3
4
5
6
7
8
9
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