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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
PSI 9000 15U/24U Series
3.4
Manual operation
3.4.1
Switching on the device
The power supply cabinets of this series are master-slave systems with one master unit and up to 5 slave units. In
order for the master to find and initialise the slaves the fastest way after powering the cabinet, it should be powered
last.
Recommendation: power the units in the cabinet from bottom to top, one by one.
After switching on, the display will first show some device related information (model, firmware versions etc.) and
then a language selection screen for 3 seconds. A few seconds later it will show the main screen with the pop-up
from the master-slave init.
In the setup (see section
„3.4.3. Configuration via MENU“
)
in the second level menu “
General settings
” is an option
“
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 after power-up will remain switched off. “
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 OVP. Those signal must be ignored until the device has finished booting and is
ready to work.
It is allowed to power a lesser number of slave units or just the master unit if the demand for
power with the current application is lower than what the cabinet can bring. Every unit can
provide 15 kW. The master unit automatically detects the situation.
3.4.2
Switching off the device
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 device will be completely powered off.
Due to the master-slave configuration of the cabinet it is recommended to switch off the master first.
Recommendation: switch off the units in the cabinet from top to bottom, one by one.
3.4.3
Configuration via MENU
The MENU serves to configure all operating parameters which
are not constantly required. These can be set by finger touch on
the MENU touch area, but only if the DC output is switched OFF.
See figure to the right.
If the DC output is switched on the settings menu will not be shown,
only status information.
Menu navigation is by finger touch. Values are set using the rotary
knobs. The assignment of the knobs to the adjustable values is not
indicated in menu pages, but there is an assignment rule: upper
value -> left-hand knob, lower values -> right-hand knob.
The menu structure is shown schematically on the following pages.
Some setting parameters are self-explanatory, others are not. The
latter will be explained on the pages following.