Emerson NT5C06D user manual = 52.2 + .15 V = 52.35

30 Installation and start-up

Procedure 4 - Starting up the rectifier ( continued )

Step Action

10In order to accurately adjust the rectifiers float and/or equalize (if different from factory setting) the current share mode setting must be taken into account.

Two modes of share are offered in the NT5C06DA/DB.

(i)Slope Share

The output voltage linearly decreases by -300mV from 0-100% of output current capacity (0-25 A). Therefore to accurately PRESET the rectifier's float voltage, it's running current within the plant environment must be predicted and the output voltage modified according to expression below:

V.(preset) = Vo (desired) + (Io (running) x .3v) 25

or

% Io (running) x .3v

For example: if the rectifier is expected to provide 12.5 A at 52.2 V then:

Vo(preset) = 52.2 + (12.5 x .3 V) 25

= 52.2 + .15 V = 52.35 V

In Slope Share mode the rectifier's output may need to be corrected slightly in order for it to share equally with any other rectifiers.

The SLS/FS switch of the rectifier (and all other rectifiers in parallel with it) must be pushed toward SLS for slope mode sharing.

continued

UM5C06D ( 169-2071-504 ) P0831010 Standard 7.00 May 2001