Allen-Bradley MPAI-A C Series Installation Instructions Manual page 13

Verify Connector O-ring and Back-shell Seal
An O-ring on the feedback connector, and a back-shell seal on the feedback and power/brake
connectors are necessary to achieve the maximum environmental rating. Verify the seal and
O-rings are installed as described.
Location
Attach Motor Cables
Use this procedure to attach the power and feedback cables after the electric cylinder is mounted.
1. Carefully align each cable connector with the respective motor connector as shown in
the diagram.
2. Fully seat the feedback connector and the power/brake connector.
•
Hand tighten the collar of a threaded (M4) connector five or six turns.
Groove reserved for
quick-lock plug.
O-ring
Backshell Seal Inside
Feedback and Power/Brake
Connector Housing
ATTENTION: Keyed connectors must be properly aligned and hand-tightened the
recommended number of turns.
Improper connector alignment is indicated by the need for excessive force to seat
connectors. For example, the need to use tools to fully seat connectors.
Failure to observe these safety precautions could result in damage to equipment.
ATTENTION: When installing a threaded DIN cable with an M4 designation, an O-ring
must be installed in the groove immediately adjacent to the body of the motor
connector. This O-ring dampens the effects of vibration at the cable-to-motor
connection.
Cables requiring O-rings include 2090-XXNPMF-xxSxx or 2090-CPxM4DF-xxAFxx power
cables, and 2090-CFBM4DF-CDAFxx feedback cable.
Continuous flex cables with a SpeedTec DIN connector have an M7 designation.
Rockwell Automation Publication MPAI-IN001F-EN-P - January 2016
MP-Series Heavy-duty Electric Cylinders
Verify
•
An O-ring is mounted on the external surface of the
feedback connector and the power/brake connector.
•
The O-ring is undamaged, not twisted, and rests in the
groove near the rear of the connector.
•
A back-shell seal covers the joint inside the feedback and
power/brake housings. It seals the joint between the
back-shell and the housing of the connector.
•
The back-shell seal is undamaged, and it is fully seated
against the face of the back-shell.
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