Page 27
mPower 300 Series (Rev G)
5.4 Manual Operation
5.4.1 Switching the unit on
The unit should, as far as possible, always be switched on using the rotary switch on the front of the unit. Alternatively this
can take place using an external cutout (contactor, circuit breaker) of suitable current capacity.
After switching on, the display will show the manufacturer's logo for a few seconds, plus some information like model,
firmware version(s), serial number and item number and will then be ready for use. In setup (see section
Configuration in the setup menu
) in the second level menu “
General
” is an option “
DC output after power ON
” in which
the user can determine the condition of the DC output after power-up. Factory setting here is “
OFF
”, meaning that the
DC output on power-up is always switched off. Selection “
Restore
” means that the last condition of the DC output will be
restored, either on or off. All set values are always saved and restored.
For the time of the start phase the analog interface can signal undefined statuses on the output pins
such as OT or OVP. Those signals must be ignored until the unit has finished booting and is ready to
work.
5.4.2 Switching the unit off
On switch-off the last output condition and the most recent set values are saved. Furthermore, a “PF” alarm (power
failure) will be reported, but can be ignored.
The DC output is immediately switched off and after a short while fans will shut down and after another few seconds the
unit will be completely powered off.
5.4.3
Configuration in the setup menu
The setup menu serves to configure all operating parameters which are not constantly required. It can be entered by
pushing
, but only while the DC output is switched off. See figures below.
If the DC output is switched on the settings menu will not be shown, but the quick menu and some status information.
Menu navigation is done with the pushbuttons
,
and
. Parameters (values, settings) are set using the
rotary knobs.
The assignments of the rotary knobs, if multiple values can be set in a particular menu, is always the same: parameters
on the left-hand side -> left-hand knob, parameters on the right-hand side -> right-hand knob
The menu structure is shown schematically on the next page.
Some setting parameters are self-explanatory, others are not.
The latter will be explained on the pages following.