Donauer High Efficiency 3.0, Инструкция по установке и эксплуатации

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10 Self test
The self test is mandatory for operation in Italy.
Function
A prerequisite for performing the self test is that the country Italy has been set.
During the self test the inverter checks its switch-off behaviour with regard to too high / too low
grid voltage and frequency (4 test phases, duration of approx. 8 minutes). The following applies:
• In each phase of the self test the inverter changes its switch-off threshold, step-by-step upwards/
downwards from the set lower/upper limit values.
• When the switch-off threshold reaches the actual grid voltage/frequency then the inverter stores
this information.
• The data is shown on the display as follows:
– The current values of the first test phase are displayed first; see Fig. 9.
– The values of the subsequent test phases are added below (initially hidden).
– If the self test succeeded then the status message
Self test passed
is added below. The
status message must be displayed and confirmed.
• If the self test conditions are not satisfied, one of the status messages listed in Tab. 10 is dis-
played.
• If a measurement lies outside the required tolerance during the self test then the self test is can-
celled and the inverter displays the status message
Self test failed
. The inverter disconnects
itself from the grid (relay open, no feeding), until the self test is passed successfully.
Note
The data stored in the inverter can be read using a PC and the InverterSelftestProtocol software.
1
2
3
4

Upper/lower limit value according to the country setting

Measured actual grid voltage/frequency
 Switch-off threshold (changed in steps)

Switch-off time = time between following events:
• The switch-off threshold reaches the actual grid volt-
age/frequency
• The inverter disconnects itself from the grid
Fig. 9: Self test – display of the test results
Operation
√ The country Italy is set in the inverter to be tested.
1. If necessary, check the country setting via
Informa-
tion
/
System information
.
2. Select
Self test
in the main menu. The dialog shown
at the left is displayed.
3. Press and hold
SET
for 1 second. The self test starts.
4. The values for the first test phase are displayed (Fig.
left).
5. Press

to display the values for the subsequent test
phases (if available).
6. Only when
Self test failed
is displayed: Press
SET
to confirm the status message. The status display ap-
pears.
Note
If Self test failed is displayed, repeat the self test
as soon as possible so that the inverter can resume
feeding.