Disabling Ground Fault Protection For Negative Grounded And Ungrounded Arrays; Figure 4-6 Xw Solar Charge Controller Safety Ground Connector - Xantrex XW4024-120/240-60 Installation Manual

Disabling Ground Fault Protection for Negative Grounded and Ungrounded Arrays

975-0239-01-01
xantrex
Solar Charge Controller

Figure 4-6 XW Solar Charge Controller Safety Ground Connector

WARNING: Shock Hazard
Disconnect PV and battery circuits before removing the grounding connection or before removing
or installing the PV-GFP fuse.
To install the XW SCC in a system where an external negative-ground bond is required or
where the PV array must not be grounded, the XW SCC internal PV-GFP circuit and
ground bond must be disabled. To disable the unit's PV-GFP circuit and ground bond,
move the jumper connector located on the circuit board within the wiring compartment.
See Figure 4-7.
WARNING: Shock Hazard
Disconnect PV and battery circuits before accessing the XW SCC wiring compartment.
Disabling the PV-GFP circuit in this way opens the negative-to-ground bond within the
unit. This provides the option of using an external PV-GFP circuit, operating the XW SCC
with an ungrounded PV array, or grounding the negative circuit of the battery elsewhere in
the system.
This manual for use by qualified personnel only
WARNING: Fire Hazard
Ensure there is no other ground connection in the DC
wiring or the PV-GFP will be defeated and will not
protect the array from ground fault conditions.
This symbol identifies the
protective conductor
(grounding) connection.
Chassis ground terminals.
The PV-GFP fuse is located under the power
connector circuit board
Grounding
4–9