The delay in seconds after utility line power returns
before the UPS will turn on. This value is also used
when the UPS comes out of a reboot and before the UPS
wakes up from 'sleep' mode.
For a list of allowed values supported by your UPS model,
see the UPS User's Manual.
If a value other than a supported value is provided in a
set request, the UPS interprets it as a the next higher
acceptable value. If the provided value is higher than
the highest acceptable value, the highest acceptable
value is used.