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Grounding
975-0400-01-01
2–9
Disabling Ground Fault Protection for Negative Grounded and Ungrounded
Arrays
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 2-7.
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 Charge Controller with an ungrounded PV array, or grounding the
negative circuit of the battery elsewhere in the system.
WARNING: Shock hazard
Disconnect PV and battery circuits before accessing the Charge Controller wiring
compartment.
Figure 2-7
PV Negative Ground Jumper Location
Enabled
Disabled
Summary of Contents for XW-MPPT60-150
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