Agilent Technologies TwisTorr Medium-TMP 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
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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