ABC450 Series

9

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BCD.00326_AG

During the installation and setup of parallel supplies in a system it is important that a single remote sense point be used for all

the supplies.

The remote sense voltage between the supplies must be adjusted to within 2% to ensure the supplies are inside the 3% capture

window.

If the supplies are not initially adjusted inside the capture window the supplies will not current share.

NOTE:

“CURRENT SHARING “ facility is inclusive with the unit only with ordering of the “ CURRENT SHARING “ option unit i.e.

ABC450-1XXX-I or ABC450-1XXX-I.

SET-UP PROCEDURE:

1

Connect load cables to the outputs of each supply.

2

Connect the remote sense lines to the load in twisted style. (A common remote sense point must be used for all the

supplies in parallel).

3

Connect all the “current share” pins on the J3 connector between the supplies.

4

Adjust remote sense voltage of each supply to within 1% of rated output voltage or readjust to required set point.

(Adjustment to be done with all other parallel supplies off).

5

Current sharing between the supplies can be verified by monitoring the output current of each supply with a hall effect DC

current probe. The supplies should share to within 10% of the total load current.

6

The current share circuit has a capture window voltage of +/- 3% of the rated output voltage. If the output remote sense

voltage of one of the supplies is adjusted outside the 3% window the supplies will not current share.

NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems,

equipment used in hazardous environments, or nuclear control systems.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the

date manufactured. Specifications are subject to change without notice.