
102
Replacing fuses
Safety
Replacing the re-
verse polarity
protection fuse
The inverter has been activated with the polarity of the DC cables reversed.
Despite sufficient levels of insolation, status code 307 "DC low" appears on the display.
1
-
Remove the contact protection above
the data communication area
WARNING!
An electric shock can be fatal. Danger due to grid voltage and DC
voltage from solar modules that are exposed to light.
-
Make sure that both the AC side and the DC side of the inverter are de-ener-
gised before making any connections and carrying out maintenance work.
-
The connection area must only be opened by a qualified electrical engineer.
-
The power stage set may only be opened by Fronius-trained service techni-
cians.
WARNING!
An electric shock can be fatal. Danger due to residual voltage in ca-
pacitors.
Wait for the capacitors to discharge. Discharge time is 5 minutes.
WARNING!
An electric shock can be fatal. Danger due to DC voltage from the so-
lar modules.
The DC main switch is only to be used to de-energise the power stage set.
Grounding of the solar module remains in effect, even when the DC main switch
is switched off. Do not under any circumstances touch DC+ or DC-.
WARNING!
An electric shock can be fatal. If a ground fault occurs, a conductor
that is normally grounded can lose its ground connection and become live. A
ground fault must be repaired before operation is resumed.
WARNING!
An inadequate ground conductor connection can cause serious inju-
ry or damage.
The screws on the covers provide a suitable ground conductor connection for the
housing; these screws must not under any circumstances be replaced by other
screws that do not provide a reliable ground conductor connection.
CAUTION!
Risk of damage to the inverter due to the ingress of moisture.
-
Never open the inverter during rain.
-
Do not establish any connections or carry out any maintenance work during
rain.
1
Содержание Agilo 100.0-3
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Страница 51: ...49 EN 1 2 Inserting the fuse grounds the solar modules on the negative pole 1 1 1 2 2...
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