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Figure 1-2 Power Module Assembly

Figure 1-3 Card Cage Assembly

The Card Cage Assembly (Figure 1-3) is designed to enable fast and easy service and

also acts as an EMI shield to ensure signal integrity on the following four PCBs:

1. Communications PCB – Provides serial, internet and Modbus communications.

2. Power Distribution PCB – Distributes the required logic level voltages for use

throughout the inverter.

3. Controller PCB – Contains a powerful DSP that controls sine wave generation, logic

functions and protection activities. All analog and digital inputs and outputs are

routed to the Control PCB and fed to the DSP.

4. I/O PCB – Provides a central location for a range of input, output and control cir-

cuits.

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Card Cage Assembly

Controller PCB

I/O PCB

Power Distribution PCB

Communications PCB

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