6 | SAMLEX AMERICA INC.
SAMLEX AMERICA INC. | 7
Display when GFci has tripped due to leakage on the Load Side (output side)
The AC output power of the inverter is fed through a Duplex NEMA5-20 outlet with
GFCI protection.
A GFCI has a relay operated mechanical switch that mechanically switches off the
Load Side (output side) of the GFCI from its Line Side (input side) in case of a ground
fault / leakage. It compares the current sent to the load side and returned back
from the load side. If the returned current is less by more than 5 to 7 mA (this loss of
returned current will be due to ground fault / leakage on the load side), the switch
trips and disconnects the AC load from the AC source. When the GFCI has tripped due
to ground fault / leakage, it can be reset by pressing the reset button.
For the reset button to operate and reset the GFCI, AC power is required to be
present on the Line Side (input side) of the GFCI. If AC power is not available on the
Line Side (input side) of the GFCI, the GFCI will not reset. When the GFCI trips due to
leakage on the Load Side, the following symptoms will be seen:
on the GFci
•
The Green LED light on the GFCI will be switched off
on the inverter
•
Green LED on the front panel of the inverter will continue to remain lit
•
Internally, the inverter will still be working normally and the rated AC output
voltage will be available on the internal Line Side of the GFCI, but not on the
external Load Side of the FGCI due to tripped relay in the GFCI.
on the LcD Display
•
Power bar graph is switched off
•
Backlight is dimmed
•
only the DC input voltage is displayed
When the output side of the GFCI outlet of the inverter trips due to ground fault /
leakage on the load side, the inverter will still be operating normally and AC power
will still be available on the Line Side (input side) of the GFCI (but not on the output
side of the GFCI).
thus, “oUtpUt FAULt” message will not be displayed when the
GFci has tripped due to ground fault / leakage on the Load Side.
Use the “Reset”
button on the GFCI to reset the mechanical switch to the ON position after removing
the cause of the ground fault.
seCtIOn 3 |
Display
