Rockwell-automation 2364,2364E NRU DIODE REPLACEMENT Manual de usuario descargar pdf (Pagina 5)

NRU Diode Replacement 5

Publication 2364E-5.11 - April 1998

Installing A Diode 1. Verify that the diode is of the correct rating:

3. Apply two or three drops of silicone heatsink oil to each side of the

diode. Spread the oil evenly over the pole face of the diode.

4. Install the diode (with the correct polarity) onto the centering roll pin

on the back heatsink. Refer to Figure 2 for diode polarity informa-

tion. Refer to Table A and Figure 3 for installation polarity.

Important: Be careful not to scratch diode pole faces when installing

diode onto the centering roll pin.

Figure 2

Diode Polarity Details

Table A

Installation Polarity

NRU Output Current (A DC) Diode Rating

180 / 350 450A, 1800V

900 900A, 1800V

1500 / 2000 1960A, 1800V

2500 3000A, 1800V

3000 5000A, 1800V

If your NRU is rated at: Then:

2500A DC or 3000A DC Put the Lexan holder on the diode.

HS1 (-): Left Heatsink HS2 (+): Right Heatsink

Diode Symbol Diode Pole Facing Front

of MCC

Diode Symbol Diode Pole Facing Front

of MCC

D1 - (Cathode) D2 + (Anode)

D3 - (Cathode) D4 + (Anode)

D5 - (Cathode) D6 + (Anode)

(Cathode)

(Anode)

1 2 3 4 5 6 7 8

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Rockwell-automation 2364,2364E NRU DIODE REPLACEMENT Manual de usuario Pagina 5