User Manual

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8. Maintenance
8.1 PSU factory reset
To restore the factory settings, the following steps need to be done:
8 | Maintenance
1. Make sure the PSU is switched off.
2. Hold down the OK key on the keypad, and switch
on the PSU at the same time
3. The OK button can be released when the screen
lights up.
4. The “FINISH” row should be selected.
5. Press “OK” to perform a factory reset on this PSU
only. If needed, this PSU can be switched off with-
out performing a factory reset.
NOTE: Each PSU has to be reset individually.
NOTE: On bootloader firmware versions below
1.07.1, firmware reset takes about 2 seconds.
Bootloader firmware versions at above 1.07.1
perform this operation typically within 20 seconds.
Please do not interrupt this operation! If the power
is interrupted during the factory reset operation, a
new factory reset is required.
8.2 PSU firmware version
Available features are dependent on PSU rmware.
Use the following procedure to nd out the current
rmware version.
1. Make sure the PSU is switched off.
2. Hold down the Right key on the keypad.
3. Switch the PSU on.
4. When the screen looks similar to the one shown in
the picture (e.g. “v1.05.2”), release the Right key.
5. Press OK to exit the rmware version display.