ABB AC 800M User Manual page 109
Profibus dp
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Also See for AC 800M:
- Configuration (260 pages) ,
- Hardware and operation (230 pages) ,
- Manual (200 pages)
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Section 4 Commissioning of PROFIBUS equipment
3.
4.
3BDS009029R5001 B
One bus termination is not powered (5 V) (or two 390 Ohm resistors are
missing) and one additional bus termination (220 Ohm) placed between the
transmission lines:
–
The measured voltage between the both transmission lines is 0,43 V
One additional bus termination (220 Ohm) is placed between the transmission
lines:
–
The measured voltage between the both transmission lines is 0,79 V
Testing the PROFIBUS bus cable and bus
109
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