Rockwell Automation 1771-QC , D17716.5.25 SER/B SERVO POS User Manual
Page 62
Installing the Assembly
Chapter 6
6Ć12
Within a shielded cable, pairs of wires are twisted together. Using a
twisted pair for a signal and its return path provides further protection
against noise. We show a twisted pair like this:
We show a shielded twisted pair like this:
.
Connect each shield to ground at one end only. At the other end, cut the
shield foil and drain wire short and cover them with tape to protect against
their accidentally touching ground. Keep the length of leads extending
beyond the shield as short as possible.
Use cables with the proper number of individually shielded twisted pairs
as follows:
To connect to:
Number of
Individually
Shielded
Twisted Pairs: Use:
Encoder
4
Belden 8725 or equivalent
Analog power supply
2
Belden 8723 or equivalent
All other shielded cable
connections
1
Belden 8761 or equivalent
Connecting the Input Supply
To connect the input power supply, follow these steps:
1.
Connect the plus side of the input power supply to terminal 1 of the
left wiring arm.