Agilent Technologies TwisTorr Medium Notice De Mode D'emploi page 245

Drive the External Fan
There are three different ways to drive the external Fan selectable
via Front Panel and via RS232/RS485:
1
2
3
TwisTorr Medium-TMP Rack Controller User Manual / 87-901-049-01 (B)
Always ON
Setting WIN 143 = 0 (default value) the fan remains always ON
(the value in WIN144 is not considered)
Automatic Setting
WIN 143 = 1 the external fan is always ON during the Ramp-up
status. In the others status, the fan behavior depends only on
WIN 144 value: WIN 144 = 1 external fan ON; WIN 144 = 0
external fan OFF that means that WIN 144 determines the Fan
status when the pump reaches the "normal" status (Front panel
display HICOMP or HIFLOW).
Serial setting
WIN 143=2 the external fan is configured in serial mode, in this
condition the fan behavior depends only on WIN 144 value) WIN
144 = 1 external fan ON; WIN 144 = 0 external fan OFF. The WIN
143 default value is 0.
Technical Information
Window Meanings
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