X-AI 32 01 4 Start-up
HI 801 021 E Rev. 4.00 Page 41 of 58
4.4 Connection Variants
This chapter describes the correct wiring of the module in safety-related applications. The
connection variants specified here are permitted.
4.4.1 Input Wiring
The inputs are wired via connector boards. Special connector boards are available for
redundantly wiring the modules.
The transmitter supplies are decoupled using diodes. This ensures that the transmitter
supplies of two modules can supply one transmitter if the modules are redundant to one
another.
Connector boards X-CB 008 01 and X-CB 019 01 (with screw terminals) or X-CB 008 03
and X-CB 019 03 (with cable plug) can be used to perform the wiring such as described in
Figure 13 and Figure 14.
AI-
S-
Connector Board
S+
AI+
AI_R+
X-AI 32 01
2
1
Transmitter Supply Analog Input
Figure 13: Single-Channel Connection of a Passive Two-Wire Transmitter
AI-
S-
Connector Board
S+
AI+
AI_R+
X-AI 32 01
3
2
1
External Transmitter Supply
Transmitter Supply
Analog Input
Figure 14: Single-Channel Connection of an Active Two-Wire Transmitter
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