Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 142

4. SIGNALS AND WIRING
2) Cable connection procedure
Cable connection lever
1) Attach the cable connection lever to the housing.
(Detachable)
2) Push the cable connection lever in the direction
of arrow.
3) Hold down the cable connection lever and insert
the cable in the direction of arrow.
4) Release the cable connection lever.
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