FANUC Series 16/18/160/180-Model C Connection Manual (Hardware)

B–62753EN/01
7. CONNECTION TO CNC PERIPHERALS
209
The standard of the feedback signal from the additional detector is as
shown below.
(1)A and B phase signal input
This is a method to input position information by the mutual 90 degree
phase slip of A and B phase signals.
Detection of the position is performed with the state in which the B phase
is leading taken as a shift in the plus direction, and the state in which the
A phase is leading as a shift in the minus direction.
Shift in plus direction
Shift in minus direction
A phase signal
B phase signal
A phase signal
B phase signal
(2)Phase difference and minimum repeat frequency
Td
Td
Td
Td
0.5V
A
B
Tp
PCA/*PCA
*PCA/PCA
PCB/*PCB
*PCB/PCB
0.5V
(3)Z phase signal input
For the Z phase signal (1 rotation signal), a signal width of more than 1
frequency of the A phase or B phase signals is necessary.
Z phase signal
Tw
Twy 1 frequency of A phase or B phase
Input signal
requirements

Leave a Reply

Your email address will not be published. Required fields are marked *