Fronius Symo GEN24 3.0, Operating Instructions Manual, Page: 102 / 144

I/O power man-
agement settings
- 1 relay
DNO Rules
V+/GND IO I
not used
DNO Feedback
Rule 1
0 2 4 6 8 10
1 3 5 7 9 11
100
DNO Feedback
Active Power
1 cap
Power Factor (cos φ)
Rule 2
0 2 4 6 8 10
1 3 5 7 9 11
0
DNO Feedback
Active Power
1 cap
Power Factor (cos φ)
EXPORT IMPORT
0
0
2
3
4
5
6
7
8
9
10
11
1 2 4
1 3 5
6
9 11 7
10 8
v
+
v
+
GND GND
I/O Power Management
None
None
None
None
None
None
None
None
IO control
None
None
None
Autotest
(CEI 0-21) Description
The 'Autotest' can be used to check the protective function required by the Italian stand-
ard for monitoring the voltage and frequency limits as well as the trip limits of the inverter
during commissioning. During normal operation, the inverter constantly checks the cur-
rent voltage and frequency actual value of the grid.
After the start of the autotest, various individual tests run automatically one after the oth-
er. Depending on grid conditions, the duration of the test is approx. 15 minutes.
IMPORTANT!
The inverter may only be commissioned in Italy after a successful autotest (CEI 0-21). If
the autotest is not passed, no feed-in operation may take place. If the autotest is started
once, it must be completed successfully. The autotest cannot be started during emer-
gency power mode.
VAC inner
limit max Test to check the maximum voltage in the phases
VAC inner
limit min Test to check the minimum voltage in the phases
FAC inner
limit max Test to check the maximum frequency
102