Yaskawa i80M Maintenance Manual - Manual (Page 161)

(c) Insert the module in line with the guide of the NC
rack and tighten the mounting screw.
(d) Insert the cable into the original position.
(3) Checking Functions After Replacement
(a) Check that 12V, and outputs are not
shorted due to overloading.
(b) Apply the initial power and second power again and
check that no alarm occurs.
153