Spectrum Controls 1769 User Manual page 17

User's Manual Pub. 0300241-01 Rev. A
Chapter 2: Quick Start for Experienced Users
1) Check that the bus lever of the module to be installed is in the unlocked (fully
right) position.
2) Use the upper and lower tongue-and-groove slots (1) to secure the modules
together (or to a controller).
3) Move the module back along the tongue-and-groove slots until the bus
connectors (2) line up with each other.
4) Push the bus lever back slightly to clear the positioning tab (3). Use your fingers
or a small screwdriver.
5) To allow communication between the controller and module, move the bus lever
fully to the left (4) until it clicks. Ensure it is locked firmly in place.
When attaching I/O modules, it is very important that the bus
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connectors are securely locked together to ensure proper electrical
connection.
Attention
6) Attach an end cap terminator (5) to the last module in the system by using the
tongue-and-groove slots as before.
7) Lock the end cap bus terminator (6).
A 1769-ECR or 1769-ECL right or left end cap respectively must be
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used to terminate the end of the 1769 communication bus.
Attention
Step 3: Wire the module. Reference
Chapter 3
(Installation and Wiring)
2-3