
High Resolution Serial Output
Circuit H
9/12
FANUC LTD
A-56731E-0089
Description Desig. Date Edit.
01 02.06.03 Kikuchi Taniguchi
title
Sheet
Draw. No.
8. SETTING PINS AND CHECK PINS
Check pins in “CHCN”
Signals of 90, 0, T1, 0V, 5V,
and PZ can be observed in
these check pins.
The location is shown below.
90 T1 5V
0 0V PZ
90
Differentially amlified signal
from B and XB input signals.
90 = 2 x ( XB – B )
0
Differentially amplified signal
from A and XA input signals.
0 = 2 x ( XA – A )
T1
2.5V DC (=1/2 Vcc)
0V
Signal ground
5V
Power source
PZ
Comparated digital signal
from Z and XZ input signals
.
Check pins “CHCN” is added
on PCB version 06D or later.
Setting pin “SW1”
“A” setting:
CMAL function, by checking
position data and reference
signal, is valid.
“B” setting
bove function is invalid.
Setting pin “SW3”
“A” setting:
512 times interpolation
“B” setting
2048 times interpolation
Setting pin “SW3” is added
on PCB version 07E or later.
This means the location o
check pins (CHCN)
Setting pin “SW2”
“A” setting:
For analog reference signal
input.
“B” setting
For digital reference signal
input.
Setting pin “SW2” is added
on PCB version 06D or later.