Xantrex Technology XDI2048 Fuses and Grounding, Incorrect Connection Protection, Output AC Alarm

Inverter Module Installation and Operation

Fuses and Grounding

The inverter is equipped with non-user replaceable, internal fuses for fault protection. The input fuse (fuse F1) is rated at 60 A, 170 Vdc, 100 kA 1R and positioned in the return path. Both L1 and L2 output ports are protected with slow acting fuses (fuses F2 and F3). The fuse ratings are model dependant and as follows:

XDI2048 120 V output: 20 A 250 V

XDI2048 230 V output: 12 A 250 V

Grounding studs are provided adjacent to the DC input and AC output ports. The equipment must be grounded at these locations as required by end applications and local regulations. See Chapter 2, “Rack Mount Frame Assembly and Installation” for connection details.

Incorrect Connection Protection

•Input contactor will not close for normal startup with reverse polarity input connection.

•The output contactor will not close if AC back feed is detected on power up or if a unit is unable to synchronize to the AC bus.

•The output fuse will open for output faults not covered by internal protection circuitry.

Output (AC) Alarm

The following conditions will cause an output alarm:

•Output overload

•Output short circuit

•Output Over-voltage

•Over-temperature

•Module failure

When such a condition exists,

1.The red FAULT indicator located on the front panel is turned on,

2.The open collector “Fault” alarm output is energized,

3.The output contactor is opened and the inverter output is disabled. Except in the case of an Output Overload when the module will continue to run for a short period, depending on the overload power, prior to shutdown.

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