Use; General; Startup; Monitor Mode - Varian Turbo-V 250 969-9504 Bedienungshandbuch

USE

General

Make all vacuum manifold and electrical connections
and refer to Turbo-V pump instruction manual prior to
operating the Turbo-V controller.
!
To avoid injury to personnel and damage to the
equipment, if the pump is laying on a table make sure it
is steady. Never operate the Turbo-V pump if the pump
inlet is not connected to the system or blanked off.
When the Turbo-V 250 pump is baked by a membrane
pump, the Soft Start mode should be deselected.

Startup

If the forepump and the vent device are not operated by
the controller, close the vent valve and switch on the
forepump.
Apply mains to the I/O connector. Voltage and frequency
output will be at the maximum level; then the frequency will
decrease to a value proportional to the pump rotational
speed (3 KRPM if the pump is completely stopped) and
then it will accelerate until the normal condition has been
reached.
The controller with the Soft Start mode allows the pump to
ramp-up to Normal speed slowly with a minimum ramp-up
time of 250 seconds and a maximum of about 45 minutes.
If the Soft Start mode is deselected, the ramp-up will be
done
180 seconds. Plug the controller power cable into a
suitable power source.
WARNING!
NOTE

Monitor Mode

The following instructions are applicable to Turbo-V 250
Controller model 969-9504 only when the optional "hand held
terminal" is installed.
•
After the main is applied to the I/O connector, the
pump starts and the display shows:
S O F T
[
Where the sign minus (-) become a square ( ž ) when
the pump finish the ramp-up step. The active step is
indicated by a flashing square (€ ž ).
•
As the ten steps are fully covered, the pump will
reach the Normal operation. If during the Soft Start
mode the current drawn by the pump exceed 1.7 A
the speed of the pump is decreased to maintain the
maximum power allowable (1.7 A).
•
If the Soft Start mode has been deselected the
display will change and shows:
P U M P
1 2
where:
within
1 2 = contrast inverted identifies the set point
condition:
− 1 is displayed when relay R1 is de-energized
− 2 is displayed when relay R2 is energized.
XX KRPM = indicates the actual theoretical
rotational speed of the pump as a function of the
controller
56 KRPM).
•
After pump start-up, voltage and frequency output
will be at the maximum level, then the frequency will
decrease to a value proportional to the pump
rotational speed (3 KRPM if the pump is completely
stopped). The pump will accelerate to its normal
rotational speed.
•
When the normal rotational speed is reached, the
display will be as follows, even if any previous
display selection was made, and the normal
condition has been reached.
N O R M A L
where: XX =indicates the rotational speed (56 KRPM
for high speed, or 37 KRPM for low speed).
53
TECHNICAL INFORMATION
NOTE
S T A R T
- - - - - - - -
I S S T A R T
X X K R P M
output frequency
O P E R A T
X X K R P M
87-900-856-01 (B)
O N
]
- -
I N G
(range 3 to
I O N