14
Power to
interface
CNC controller
+Vdc
0 Vdc
Controller
protective
earth **
Controller
protective
ground
Green/Yellow
Optional
+Vdc from I/O supply
Skip input (G31)
−Vdc from I/O supply
MI 8-4 interface
A10 output + supply
A11 probe status output (totem pole)
A12 output - supply
B4 SELX−
B5 X−
B6 SELX+
B7 X−
B8 SELZ−
B9 Z−
B10 SELZ+
B11 Z+
A7 inspection select
A8 inhibit
A9 input resistors common
Power input
B1 +Vdc
B2 0 Vdc
B3 screen
Green/Yellow
Green/Yellow
Green/Yellow
Inspection system input + A4
Inspection system input − A5
Screen A6
Probe
input
Screen A1
Probe + A2
Probe − A3
Optional
Inspection
probe
Inspection
probe
interface
Blue
Green
LP2 Probe
LP2
Machine tool
**Can also be referred to as ‘PE starpoint’ or ‘earthplate’
For more information regarding these connections, see the MI8-4 interface
unit installation and user’s guide (Renishaw part no. H-2000-5008).
Recommended connection diagram for LP2 with MI 8-4 interface