Specifications

Analog Output Modules
31007715 6/2008 293
STB ACO 0220 Field Wiring
Summary The STB ACO 0220 module uses two six-terminal field wiring connectors. Analog
actuator 1 is wired to the top connector, and the analog actuator 2 is wired to the
bottom connector.
Connector Types 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 Actuators The STB ACO 0220 module provides analog output data to two 4 to 20 mA analog
field actuators. Data on each channel has a resolution of 15 bit + 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 wire 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 actuator 1, and the bottom connector supports
analog actuator 2. Four field wires may be used on each connector—on pins 1, 2, 4
and 6.
Each connector provides a power supply for the analog current loop. These are
minimally isolated from the channel and fully isolated from each other.
Pin Top Connections Bottom Connections
1 +24 VDC loop supply +24 VDC loop supply
2 output to actuator 1 output to actuator 2
3 no connection no connection
4 output channel return output channel return
5 no connection no connection
6 loop power return (to the module) loop power return (to the module)
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