ADLINK Technology PCI-8136, User Manual

Page: 30 / 84

22 Signal Connections
The input circuits of the EA, EB, EZ signals are shown as follows.
Figure 3-5: Pulse input (encoder counter) circuit
Note: The voltage across every differential pair of encoder input
signals (EA+, EA-), (EB+, EB-) and (EZ+, EZ-) should be at
least 3.5V or higher. Therefore, you have to take care of the
driving capability when connecting with the encoder feed-
back or motor driver feedback.
Here are two examples of connecting the input signals with the
external circuits. The input circuits can connect to the encoder or
motor driver, which are equipped with: (1) a differential line driver
or (2) open collector output.
EB4+ 35 CN1 (SCSI II – 100 Pin) Encoder CH.4 B-Phase (+)
EB4- 36 CN1 (SCSI II – 100 Pin) Encoder CH.4 B-Phase (-)
EZ4+ 37 CN1 (SCSI II – 100 Pin) Encoder CH.4 Z-Phase (+)
EZ4- 38 CN1 (SCSI II – 100 Pin) Encoder CH.4 Z-Phase (-)
EA5+ 83 CN1 (SCSI II – 100 Pin) Encoder CH.5 A-Phase (+)
EA5- 84 CN1 (SCSI II – 100 Pin) Encoder CH.5 A-Phase (-)
EB5+ 85 CN1 (SCSI II – 100 Pin) Encoder CH.5 B-Phase (+)
EB5- 86 CN1 (SCSI II – 100 Pin) Encoder CH.5 B-Phase (-)
EZ5+ 87 CN1 (SCSI II – 100 Pin) Encoder CH.5 Z-Phase (+)
EZ5- 88 CN1 (SCSI II – 100 Pin) Encoder CH.5 Z-Phase (-)
Signal PIN Connector Function