Controller Connection; J6 - Fan; J7 - Vent - Varian 969-8988 Bedienungshandbuch

CONTROLLER CONNECTION

J6 - Fan

The 24 Vdc, 150 mA maximum output voltage is
present after START pushbutton is pressed and will
remain present until a fault condition is displayed on
front panel display or the turbopump is stopped.
This is a dedicated
Turbo-V 81-AG pump cooling fan (see orderable parts
table).
If you already have fan installed, use the available
adapter cable to connect to the pump.
Fan Connector
Vent Valve
CLOSED
OPEN
STOP
START COMMAND
output for the optional
RAMP
NORMAL
STOP COMMAND
Vent Valve diagram in "Auto" mode
J7 – Vent
This is dedicated 24 Vdc connector to control the
optional vent valve (see orderable parts table).
The vent valve can be driven by controller automatically
or by serial line.
If you already have a vent valve installed 110 Vac
powered, this valve must be replaced by a new model
(see orderable parts table).
Vent Valve Open
Vent Valve Relay
Win. 126 Time Win. 147
71
TECHNICAL INFORMATION
Vent Connector
87-900-986-01 (C)