6.3.3. Fieldbus cables: connect
6.3.3.1. Fieldbus connection for line topology
Figure 23: Line topology
□
Channel 1: Further fieldbus devices follow
▣
Channel 2 (redundancy only): further fieldbus devices follow
■
Last fieldbus device
n–1 Fieldbus cable from previous device (input)
n+1 Fieldbus cable to next device (output)
Connection at terminal carrier for loop topology
For flexible cables, the fieldbus connection can be made via spring clamp terminals
directly at the terminal carrier. For solid cables (single or multiple strands), additional
support terminals must be used. Refer to <Connection with support terminals> section
Information For two flexible wires per terminal, a joint wire end sleeve must be used (twin wire
end sleeve).
Figure 24: Terminal assignment at terminal carrier: Channel 1 (1A/1B)
Figure 25: Terminal assignment at terminal carrier: Channel 2 (2A/2B)
[XK] Terminal assignment according to wiring diagram (customer connection):
□ ▣ Channel 1 □ or channel 2 ▣ if further fieldbus devices follow
■
If the actuator is the last fieldbus device:
Channel 1: Link terminals 31/33 and 32/34
Channel 2: Link terminals 35/37 and 36/38
Information Always link A connections to green wire and B connections to red wire.
30
SQEx 05.2 – SQEx 14.2/SQREx 05.2 – SQREx 14.2 Control unit: electronic (MWG)
Electrical connection ACExC 01.2 Non-Intrusive Profibus DP
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