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18
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Signal Connections
♦
Connection to Line Driver Output
To drive the PCI-8132 encoder input, the driver output must provide at
least
3.5V
across the differential pairs with at least
6 mA
driving capability.
The ground level of the two sides must be tight together too.
♦
Connection to Open Collector Output
To connect with open collector output, an external power supply is
necessary. Some motor drivers also provide the power source. The
connection between PCI-8132, encoder, and the power supply is shown in
the following diagram. Please note that the external current limit resistor
R is necessary to protect the PCI-8132 input circuit. The following table
lists the suggested resistor value according to the encoder power supply.
Encoder Power(VDD)
External Resis tor R
+5V
0
Ω
(None)
+12V
1.8k
Ω
+24V
4.3k
Ω
If=6mA max.
For more detail operation of the encoder feedback signals, please refer to
setcion 4.4.
External Encoder / Driver
With line driver output
PCI-8132
A,B phase signals
Index signal
EA+,EB+,EZ+
EZ+
EA-, EB-, EZ -
EXGND
GND
VDD
GND
Motor Encoder / Driver
With Open Collector Output
External Power for
Encoder
PCI-8132
A, B phase signals
Index signal
EA+, EB+,
EZ+
EA-, EB-,
EZ-
R
Содержание PCI-8132
Страница 1: ...PCI 8132 2 Axes Servo Stepper Motion Control Card User s Guide ...
Страница 2: ......