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TECHNICAL INFORMATION
75 87-900-988-01 (B)
Controlled Vent Procedure
The default setting for vent operating mode is
“Controlled Vent Procedure” (Win 125 = 0).
When activated the procedure guarantees that the
pump is slowed down properly modulating in
automated way the vent valve.
If WIN 125= 1 the vent valve is opened via serial or
Remote I/O, but the “Controlled Vent Procedure” is
automatically activated until the speed of pump is 100 Hz.
CAUTION
The vent could damage the pump. Please, use the
Varian “Controlled Vent Procedure” or refer to
Varian personnel.
Connection J10
Controller-to-Pump Connection
A five-meter long cable is provided to connect the
controller to the pump. The following figures show the
controller output connector configuration where pins:
•
A-F = upper bearing sensor
•
B-C-D = 64 Vac 3-phase output to pump motor
stator
•
E = ground
•
A-G =pump body temperature sensor
Controller-to-pump connector
(applicable to model 869-9447 and 869-9547)
Wi
125
Wi
146
1 “OnCommand
0=”Controlled Vent
Pin-10 Low -> Purge
Close
Pin-10 High -> Purge
Open
1=Remote-I/O ( def )
0=Serial
win.122=0 Vent Close
win.122=1 Vent Open
win.145=0 Purge Close
win.145=1 Purge Open
Win.126 set the “Vent Valve Opening Delay”, from
65535, 1bit=0.2s, def=0.2s=1bit
Win.147 set the “Vent Valve Open Time”, from 0
65535, 1bit=0.2s, def=0=infinite
Fail -> Vent and Purge =
Closet
Power Fail -> Purge and
Vent = Closed
Command
Status
Speed
Star
Stop
Ramp
Normal
Braking
Stop
100 Hz
Purge
Ven
Open
Close
Open
Controlled
Venting
Win 126
Win 147
Close