Automated Logic G4106 기술 지침 - 페이지 11

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Fuses

The G4106 is protected by two 0.5 A pico fuses on the

CMnet (+) and (-) terminals, and by one 3.0 A pico fuse on

the 24 VAC power terminal. See Figure 12 for their

location.

A blown fuse can indicate incorrect wiring , such as

reversed polarity, if the fuse blows during installation. In

most cases, a power surge to the board will be the cause of

the blown fuse.

An RMA is not necessary to replace these fuses. The fuses

are socketed and are field-replaceable. A kit is available

which contains 25 each of the four different types of fuses

that can be used to replace blown fuses (ALC part no.

FUSEPKG).

Figure 12: Power and CMnet Fuses

Rev (29-AUG-97) • Module Driver v4.7

The production date of the module can be determined by a

sticker on the back of the module. The first three

characters indicate the type of module. The next three

indicate the date (year/month/week) of manufacture. The

month digit is in hexadecimal. The last four characters are

ALC production codes.