User`s guide

30 • Signal Connections
3.11 Pulser Input Signals PA and PB
The PCI-8134 can accept the input signals from pulser signals through the
following pins of connector CN3. The pulser’s behavior is as an encoder.
The signals are usually used as generate the position information which
guide the motor to follow.
CN3
Pin No
Signal
Name
Axis #
CN3
Pin No
Signal
Name
Axis #
2 PA1 • 8 PA3 ƒ
3 PB1 • 9 PB3 ƒ
4 PA2 ‚ 10 PA4 „
5 PB2 ‚ 11 PB4 „
PA and PB pins of connector CN3 are directly connected to PA and PB pins
of PCL5023. The interfac circuits are shown as follows.
If the signal voltage of pulser is not +5V or if the pulser is distantly placed, it
is recommended to put a photo coupler or line driver in between. Also, +5V
and GND power lines of CN3 are direct from the PCI bus. Please carefully
use these signals because they are not isolated.
VCC
PA,PB
PCL5023
PA, PB