ABB AC 800M, Руководство пользователя

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Installing the PROFIBUS DP/PA Linking Device LD 800P Section 4 Commissioning of PROFIBUS
100 3BDS009029R5001 B
Installing the PROFIBUS DP/PA Linking Device LD 800P
The PROFIBUS module CI854(A) is designed exclusively for the connection of
PROFIBUS DP nodes.
The Linking Device LD 800P is the interface between the PROFIBUS DP and the
PROFIBUS PA. If an intrinsically safe PROFIBUS PA segment is used, the Power
Link Module PL 890 with an intrinsically safe interface has to be used.
LD 800P supports both cyclic as well as acyclic PROFIBUS communication. The
way in which LD 800P works is essentially transparent. This means that
PROFIBUS DP masters have direct access to PROFIBUS PA slaves.
Use the following procedure to install the LD 800P (for details see related product
documentation):
1. Snap the Head Station and the Power Link Modules of the channel 1 as well as
the power supply unit onto the corresponding DIN Rail segment. Please note
that the distance between the PROFIBUS DP socket of the head station and an
intrinsically safe PROFIBUS PA connection of the Power Link Module PL 890
must be at least 50 mm measured straight.
2. If a 2- or 4-channel Head Station (HS 820 or HS 840) is being used snap the
Power Link Modules of the channels 2 to 4 as well as the power supply units
onto the corresponding DIN rail segments.
3. Connect the power supply to the LD 800P modules.
4. Connect the PROFIBUS DP transfer line to the Head Station.
5. If it is being used, connect the redundant PROFIBUS DP transfer line to the
Head Station (HS 840).
6. Add the external bus termination if the head station is the last station on the
PROFIBUS DP segment.
7. Connect the PROFIBUS PA transfer lines with the Power Link Modules
provided for this purpose. The terminal resistances for the PROFIBUS PA
segments are integrated into the Power Link Modules.
8. Connect the outputs for channels 2 through 4 of the head station with the
terminals "Connection to the Head Station"
of one
Power Link Module of the
corresponding channel. Connect the PROFIBUS PA terminals of all power link
modules of one channel.