Fronius Agilo 75.0 - Manual (Page 106)

104
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.
-
Make sure that both the AC side and the DC side of the inverter are de-ener-
gised before making any connections or carrying out maintenance work.
- The connection compartment must only be opened by an 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 from DC voltage in solar mod-
ules.
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.
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