USE IN ITALY
EN / SunMaster CS15TL/CS20TL / August 2010 29
12 USE IN ITALY
12.1 SELF TEST FUNCTION
Uac Max-TEST (Uac Min-TEST)
The screen shows:
• Measured value: Mval = the actual grid voltage;
• Setting: Set = the set maximum / minimum
voltage limit of the inverter.
• Time to shut down: Time = test time indication
• Calculated setting: Cset = the calculated maximum / minimum
voltage limit of the inverter
During the test the high voltage limit is changed with rate -11.5V/sec
(+11.5V/sec) until it reaches the actual grid voltage. The inverter will
disconnect.
After the test, the result is shown.
Write down all values shown. After pressing Confirm, all
values disappear from the display to start the next test.
Calculation Uac Max by hand: Cval = Mval + (TIME * 11.5).
Calculation Uac Min by hand: Cval = Mval - (TIME * 11.5).
Figure I-1
Calculated setting
CONFIRM
GENERAL
The Self Test Function is meant to check the upper and lower limits of the AC voltage and AC frequency at which the inverter
will disconnect from the grid.
To enter the Self Test, enter the country selection menu in the Grid Interface menu and choose Italy. In the Grid Interface,
select the Self Test menu.
During the self test, next tests are possible:
Uac Max (high off limit AC voltage);
Uac Min (low off limit AC voltage);
Fac Max (high off limit AC frequency);
Fac Min (low off limit AC frequency).
After each test you have to press Confirm before the inverter starts the reclosure count down and reconnects to the grid.
The test accuracy is better than 1V/ 0.1Hz if grid voltage and frequency are stable.
The standard reclosure time of 300 sec has been
reduced to shorten the testing time. This is not an error.
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