Specifications

Analog Input Modules
31007715 6/2008 85
STB ACI 0320 Field Wiring
Summary The STB ACI 0320 module uses two six-terminal field wiring connectors. Analog
sensors 1 and 2 are wired to the top connector, and analog sensors 3 and 4 are
wired to the bottom connector. The choices of connectors and field wire types are
described below, and some field wiring options are presented.
Connectors Use a set of either:
z two STB XTS 1100 screw type field wiring connectors (available in a kit of 20)
z two STB XTS 2100 spring clamp field wiring connectors (available in a kit of 20)
These field wiring connectors each have six connection terminals, with a 3.8 mm
(0.15 in) pitch between each pin.
Field Sensors The STB ACI 0320 module handles analog input data from four 4 to 20 mA or
0 to 20 mA differential analog field sensors. Data on each channel has a resolution
of 15 bits + sign.
Field Wire
Requirements
Individual connector terminals accept one field wire. Use wire sizes in the range
0.5...1.5mm
2
(24 ... 16 AWG).
Shielded twisted-pair cable is required to meet CE. (See the Advantys STB System
Planning and Installation Guide (890 USE 171) for an illustrated example of an
island segment with an EMC kit making the analog I/O modules CE compliant.) The
shield should be tied to an external clamp that is tied to functional earth.
We recommend that you strip at least 9 mm from the wire’s jacket for the module
connection.
Field
Wiring Pinout
The top connector supports analog sensors 1 and 2. The bottom connector supports
analog sensors 3 and 4.
No connections are made on pins 3 and 4 of either connector.
Pin Top Connections Bottom Connections
1 current in 1 + current in 3 +
2 current in 1 - current in 3 -
3 no connection no connection
4 no connection no connection
5 current in 2 + current in 4 +
6 current in 2 - current in 4 -
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