Rockwell Automation 1492 1771-to-1756 I/O Swing-arm Conversion System - Manual (Page 3)

(3)
b) Carefully place the labeled 1771 I/O swing-arm, below the 1771 I/O Chassis (refer to Figure 1e) to ensure it and the associated field wires
are not damaged.
c) Remove the 1771 I/O Module from the 1771 Chassis:
NOTE: It may not be necessary to remove the modules from the chassis. Depending on chassis size, weight and clearance it may be
possible to remove the chassis with the 1771 modules installed. If that is the case proceed to step 2a.
If it is necessary to remove the modules use the following procedure. Release the I/O module chassis latch lever above the I/O module by
pressing in the direction of the arrow and pushing up on the latch. NOTE: Some 1771 chassis (1771-A1B, -A2B, A3B1, -A4B Series B) have
one large chassis locking bar that locks all the modules into the chassis. To release the locking bar simultaneously push in on the locking
pins at both end of the bar and swing it up. Remove the I/O module from the chassis by pulling up on the module ejector lever (top of
module) until it releases from the chassis. NOTE: Check to ensure the module Catalog Number information placed on the associated
swing-arm label (Step b) is in agreement with the module nameplate label.
d) Repeat the preceding steps until all 1771 I/O swing-arms modules (optional, refer to step C above) are removed from the 1771 I/O Chassis.
Refer to Figures 1c and 1d. After each swing-arm is removed from its respective 1771 module place a temporary label on the swing-arm/terminal
block as it will be used with the conversion system (example: slot number and 1771 module Cat. Number) or mark (example: color code) it to
ensure you can correctly match each 1771 I/O terminal block with the correct 1492 conversion module and ultimately the 1756 I/O module.
NOTE: These labels are not provided with the conversion system.
Closely inspect the 1771 I/O swing-arm for any damage which may impact the reliability of the conversion. If necessary replace the 1771 I/O
swing-arm (Refer to the respective 1771 I/O module installation manual for the appropriate part Number.) Check terminal screw integrity and
re-torque if necessary.
II. Conversion Steps
Figure 1c Figure 1d
Figure 1e
NOTICE
NOTICE
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