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

7. CONNECTION TO CNC PERIPHERALS
B–62753EN/01
210
Requirements for the signals at the input pins of input connectors JF21
to JF28
TD y 0.15 µsec
The signals for these connectors are differential input signals with A and
B phases. An important factor is time TD from point A, when the
potential difference between PCA and *PCA exceeds 0.5V, to point B,
when the potential difference between PCB and *PCB becomes lower
than 0.5V. The minimum value of TD is 0.15 µs. The period and pulse
width of the signals must be long enough to satisfy the above
requirements.
PCA
*PCA
110
560
5V
The same circuit is used
for B–phase signals
(PCB and *PCB) and
one–rotation signals
(PCZ and *PCZ).
A–phase
signal
TEXAS INSTRUMENTS, INC.: SN75115
Time requirements
Receiver circuit

Leave a Reply

Your email address will not be published.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