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Ground Fault Protection
WARNING: Shock hazard
Troubleshooting a grounding fault should be performed by qualified personnel,
such as a certified electrician or technician.
Ground fault protection is required when using either solar
When a grounding fault is detected, the ground fault protection fuse will
blow. The system must be shut down completely, the fault corrected, the
fuse replaced (see "Replacing the Ground Fault Protection Fuse") and then
the system restarted.
If an error is made on the installation or if the installer is called in to help
repair the installation after damage that caused the ground fault protection
fuse to open, the main symptom is that the unit will be shut down and will
not invert or charge. The error that is shown on the front panel is E09.
Replacing the Ground Fault Protection Fuse
WARNING: Energy and fire hazard
For continued protection against risk of fire, replace the ground fault protection
fuse only with the same type and ratings of fuse.
WARNING: Shock hazard
After disconnection both AC and DC power for the the system, wait five minutes
before attempting any maintenance or cleaning or working on any circuits
connected to the inverter. Internal capacitors remain charged for five minutes
after disconnecting all sources of power.
The ground fault protection fuse will blow when severe leakage occurs
between the PV array and earth ground, or when the system has been
installed with faulty DC wiring. Before replacing the fuse, it is important to
have qualified service personnel, such as a certified electrician or
technician, to determine the cause of the ground fault.
Installation
renewable energy input. Figure 3 shows the location
protection terminals and replaceable fuse.
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