Yaskawa Solectria Solar
DOCR-071070
Page 9 of 30
AC Wiring
All AC Wiring is completed at the factory, within the ACC-1500-500 AC combiner box that is pre-mounted
to the ACS-500 rack.
STEP 1: Confirm that all wiring and associated components are de-energized
Confirm that the AC switch on the AC Combiner is in the OFF position.
Confirm that the AC switch on the XGI 1500 inverters (on the rack with other equipment in the
ACS-500 AC-Coupled Storage system) are in the OFF position (Fig 4.1).
Confirm there is no voltage at the terminals for the XGI 1500 inverters’ AC output conductors in
the ACC1500-500 AC Combiner.
Figure 3-2: Rotate the XGI 1500 Inverter AC Disconnect to the “Off” position
DANGER
Electric Shock Hazard: Components with hazardous voltage and energy will electrocute operator.
Operator shall avoid touching live components with hazardous voltage and energy. Verify the absence
of voltage using an appropriately rated multimeter.
STEP 2: Prepare the Enclosure for Conduits
Note the target area for conduit connections for the combined AC Output Circuit, in the conduit
installation diagram. Only the shaded area indicated should be used.
Add the holes for the conduit and fittings to the shaded area of the bottom of the AC combiner.
The AC combiner provides adequate space for 2” – 3” conduits for the 3-phase 600VAC
conductors.
Remove all metal shavings and debris from the inside of the AC Combiner.
