Installation
28
900-0123-01-00 Rev
A
Bonding
The GSLC is equipped with a mechanical bond between AC neutral and ground. It is also equipped
with a mechanical bond between DC negative and ground. These can be useful in stand-alone
systems where no other bond is provided. If other bonds are present, however, the GSLC bonds need
to be removed.
WARNING: Shock Hazard
If the OutBack GFDI is installed (see page 22 and the GFDI manual), the bond between
negative and ground must be removed. This must also be done if any other PV
ground-fault device is present that establishes its own negative-ground bond.
Figure
22
Disengaging Bonding Connections
Screw
TBB
Mount
DC Positive Cable Plate
Neutral-Ground Bond
Negative-Ground Bond
Inverter
Negative
Bus Bar
To remove either of the bond connections:
1.
Using a Phillips screwdriver, remove the screw
shown above.
2.
Remove the metal standoff beneath the bus bar.
The screw and bus bar provide the mechanical
bond to the chassis ground.
3.
Rotate the TBB mount and insert the bus bar into
the open end so that the TBB mount supports it.
It may be necessary to loosen the TBB mount
screw before rotating it.
4.
Retighten the screw that secures the TBB mount.
Base of GSLC
Top of GSLC
The GSLC’s
neutral bus bar
is located
in the lower right portion of the GSLC.
The neutral-ground bond is
established at one end of the bar, near
the base of the GSLC.
TBB
Mount
Screw
NOTE:
If the TBB is connected directly to the
enclosure by a screw, then the bond is
connected.
If the TBB is held by the TBB mount and
the TBB mount is secured to the
enclosure, the bond is disconnected.
The GSLC’s negative bus bar is
located near the top of the GSLC. It
is attached to the inverter
negative
bus bar
and its shunt.
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