Fieldbus Cables: Connect - AUMA SA 25.1 Operating Instructions Manual

SA 25.1 SA 48.1/SAR 25.1
AC 01.2 Non-Intrusive Modbus RTU

5.2.1.5. Fieldbus cables: connect

RS-485 connection
boards
Figure 29: Variants of connection boards
n 1 Fieldbus cable from previous device (input)
n+1 Fieldbus cable to next device (output)
[X] Shielding clamp
[X...] Terminal designation (X1, X2, X3, X4) according to wiring diagram
[S1/2] "Termination" switch for fieldbus termination
Cable connection
SAR 30.1 Control unit: electronic (MWG)
Table 17:
Variant
1 channel (standard)
1 channel
2-channel for line redundancy
2-channel for line redundancy
2-channel for loop redundancy
2-channel for loop redundancy
1) Label with article number on connection board
Table 18:
Functions of switches [S1] and [S2]
[S1] ON
OFF
[S2] ON
OFF
1) Upon delivery, the switches [S1] and [S2] are set to position OFF.
2) For loop redundancy, automatic termination is performed as soon as actuator controls are connected
to the power supply. When interrupting the power supply, e.g. after removing the AUMA plug/socket
connector, both RS-485 loop segments are automatically connected to each other.
1. Always link A connections to green wire and B connections to red wire.
Overvoltage
protection up to 4 kV
No
Yes
No
Yes
No
Yes
1)2)
Fieldbus termination channel 1 ON
Fieldbus termination channel 1 OFF
Fieldbus termination channel 2 ON (option)
Fieldbus termination channel 2 OFF (option)
Electrical connection
AUMA art. no.
1)
on label
Z071.720/02
Z071.720/04
Z071.720/03
Z071.720/05
Z102.613/01
Z102.613/02
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