ABB FPBA-01 User Manual

Electrical installation
40
Bus termination
Bus termination is required to prevent signal reflections from the
bus cable ends. The FPBA-01 module is not equipped with
internal bus termination. Therefore, the D-SUB connectors at the
first and last modules of the bus must have built-on termination
switched on. See the diagram below.
The FPBA-01 module is able to supply power for an active-type
termination circuitry (30 mA max.).
Figure 3. PROFIBUS cable termination
Note: Further information on PROFIBUS wiring is available from
the publication “PROFIBUS RS 485-IS User and Installation
Guideline” (www.profibus.com, order no. 2.262).
PROFIBUS
device
ON
PROFIBUS
device
OFF
PROFIBUS
device
ON
PROFIBUS
device
OFF
Term. Term. Term. Term.

ABB FPBA-01 Specifications

General

Brand	ABB
Model	FPBA-01
Category	Adapter
Language	English