YASKAWA HV600 Manual page 550

3.6 Keypad Operation
2.
Push (Menu).
3.
Push or
4.
Push or
5.
Push or
6.
Push or
7.
Push or
550
to select [Initial Setup], then push
to select [Set Date/Time], and push
to select the format of date display, then push
to select the format of time display, then push
to select a number from Year/Month/Day, then push
.
.
.
.
or
YASKAWA TOEPYAIHV6002A HV600 Drive Programming
to change the value.