26
Signal Connections
3.2.2
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 cPCI-8168, encoder, and the power sup-
ply is shown in the following diagram. Please note that the exter-
nal current limit resistor R is necessary to protect the cPCI-8168
input circuit. The following table lists the suggested resistor value
according to the encoder power supply.
Encoder Power(VDD) External Resistor R
+5V
0
Ω
(None)
+12V
1.8k
Ω
+24V
4.3k
Ω
If=6mA max.
Summary of Contents for cPCI-8168
Page 4: ......
Page 10: ...vi List of Figures...
Page 29: ...Installation 19 2 9 Overview of CN3 CN6...
Page 31: ...Installation 21 2 11 Switch Setting...
Page 204: ...194 Function Library...