Yaskawa i80M Maintenance Manual - Manual (Page 159)

(3) Checking Functions After Replacement
(a) Check that 12V, and outputs are not
shorted due to overloading.
(b) Check that the initial screen is displayed by
initially applying power to the NC.
(c) Store the NC program, parameter values, and offset
values copied in advance.
(d) After turning power off, apply the initial power and
second power again and check that no alarm occurs.
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