Specifications
Analog Input Modules
200
31007715 6/2008
STB AVI 1400 Field Wiring
Summary The STB AVI 1400 module uses two six-terminal field wiring connectors. Analog
sensors 1, 2, 3, and 4 are wired to the top connector, and analog sensors 5, 6, 7,
and 8 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 AVI 1400 module supports eight single-ended 2-wire analog sensors. It
handles analog inputs ranging from +1 to 5 VDC, 0 to 5 VDC, 0 to 10 VDC, +/-
5 VDC, or +/-10 VDC (default). 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.
Note: If you are wiring two return lines directly into one pin on the connectors, you
need to use STB XTS 1100 screw type field wiring connectors, as illustrated in the
field wiring examples that follow.
Note: An open circuit in the input cabling causes a voltage with an indeterminate
value to be reported.
Note: If you are wiring two return lines directly into one pin on the connectors, you
need to use stranded wires that are no larger than 0.8 mm
2
(18 AWG). Both wires
must be the same wire gauge.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com