Allen-Bradley Compact 1769-IR6, Руководство пользователя

Страница: 21 / 116

Publication 1769-UM005A-EN-P
Quick Start for Experienced Users 2-3
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.
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).
Follow the guidelines below when wiring the module.
General
•
This product is intended to be mounted to a well-grounded mounting
surface such as a metal panel. Additional grounding connections from
the module’s mounting tabs or DIN rail (if used) are not required
unless the mounting surface cannot be grounded.
•
Power and input wiring must be in accordance with Class I, Division 2
wiring methods (Article 501-4(b) of the National Electric Code
NFPA70), and in accordance with the authority having jurisdiction.
•
Channels are isolated from one another by ±10V dc maximum.
•
Route field wiring away from any other wiring and as far as possible
from sources of electrical noise, such as motors, transformers,
contactors, and ac devices. In general, allow at least 15.2 cm (6 in.) of
separation for every 120V of power.
•
Routing field wiring in a grounded conduit can reduce electrical noise.
ATTENTION
!
When attaching I/O modules, it is very important
that the bus connectors are securely locked together
to ensure proper electrical connection.
IMPORTANT
A 1769-ECR or 1769-ECL right or left end cap
respectively must be used to terminate the end of the
bus.
Step 3: Wire the module. Reference
Chapter 3
(Installation and Wiring)
AB PLCs