VICOR MicroPAC Specifications download pdf (Page 9)

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1.1.5 Power Shed Mode Functional Description

On power up with the power shed function enabled all four output channels are initially

enabled, channel one to four LED’s should be illuminated. Circuitry internal to the MicroPAC

monitors the amount of current drawn from the MicroPAC and is proportional to the

customer load.

If the load falls into category 1, the following will be observed.

Aer 5 seconds output 4 will turn o, aer 10 seconds output 3 will turn o,

aer 15 seconds output 2 will turn o.

If the customer load falls into category 2, the following will be observed.

Aer 5 seconds output 4 will turn o, aer 10 seconds output 3 will turn o,

output 1 and 2 will remain on.

If the customer load falls into category 3, the following will be observed.

Aer 5 seconds output 4 will turn o, output 1, 2 and 3 will remain on.

If the customer load falls into category 4, all output will remain on.

Output 1

Output 2

Output 3

Output 4

Oﬀ

5 sec

10 sec

15 sec

Category 1

Output 1

Output 2

Output 3

Output 4

Oﬀ

5 sec

10 sec

Category 2

Output 1

Output 2

Output 3

Output 4

Oﬀ

5 sec

Category 3

Output 1

Output 2

Output 3

Output 4

Category 4

Oﬀ

Figure 3:

Power Shed

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 20 21

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VICOR MicroPAC Specifications Page 9

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