PV Powered PVP260kW Informações Técnicas descarregar pdf (Página 56)

DC Wiring Procedure

Follow these steps to wire the DC inputs from the PV panels to the inverter. These

instructions are for a negatively grounded array. For a positively grounded array, use the

opposite terminals. Refer to Figure 4-14.

DANGER

Risk of Electrical Shock. When exposed to light, PV arrays create electrical

energy that could cause a hazardous condition.

DANGER

Risque d’électrocution. Lorsqu’elles sont exposées à la lumière, les piles

photovoltaïques génèrent un courant électrique susceptible de causer des

conditions dangereuses.

1. If the protective plastic covers which protect the DC subcombiner panel are in place,

remove the covers with a 5/32 Allen wrench.

2. Disconnect power to the DC wiring by disconnecting the PV array outside the in-

verter before starting the DC wiring.

3. Keep track of the array positive and negative leads and clearly mark each.

4. Route the PV array leads through the conduit to the desired entry gland plate on the

DC side of the inverter.

5. Connect the PV frame ground wire(s) to the ground lug on the point marked

the lower left side of the cabinet.

6. Connect positive DC lead(s) to the positive terminals located on the busbar or fuse

holder as applicable. Refer to Figure 4-14. Use Grade 8 3/8” hardware to secure the

lugs of the incoming DC cables to the busbar. The DC landing torque spec is 40 ft-

lbs.

7. Connect negative DC lead(s) directly to the negative terminals located on the busbar

or fusing as shown in Figure 4-14. Use Grade 8 3/8” hardware to secure the lugs of

the incoming DC cables to the busbar. The DC landing torque specication is 40 ft-

lbs.

8. Energize the DC cables.

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