TECHNICAL INFORMATION
8
4 87-900-940-01 (
F
)
Or twice if the display shows other parameters, either
before starting the pump or after it is operating.
If LOW SPEED is selected before starting the pump,
the display shows:
R E A D Y
F O R
L O C A L
S O F
T
S T A R T
L S
The pump reaches the Normal high speed, then
decrease the speed to the low speed value and the
display shows:
A P P R O A C H
I
N G
L S
X X
K R P M
L S
If the Soft Start has been deselected the display shows:
P U M P
R E A D Y
:
P U S H
S T A R T
B U T
T O N
L S
where:
LS
= means low speed mode is selected.
After starting, a
LS
appears on the right bottom corner
of the following displays:
S O F
T
S T A R T
O N
[
-
-
-
-
-
-
-
-
-
-
]
L S
P U M P
I
S
S T A R T
I
N G
1
2
X X
K R P M
L S
N O R M A L
O P E R A T
I
O N
X X
K R P M
L S
With normal LOW SPEED operation, the pump will run
at about 2/3 of its nominal speed and achieves a base
pressure somewhat higher than the standard
specifications. If the gas load becomes higher, the
controller output frequency and voltage start to
decrease automatically, and the Turbo-V pump is
slowed down in proportion to the gas load until it
reaches about 3 KRPM.
If the LOW SPEED mode is selected after normal
operating condition is reached, the display shows:
A P P R O A C H
I
N G
L S
X X
K R P M
L S
while approaching the low speed value.
When the low speed mode is deselected, the pump
starts to accelerate to its rotational speed.
The display shows:
N O R M A L
O P E R A T
I
O N
X X
K R P M
Pump Shutdown
Press the front panel STOP pushbutton or remove the
remote signal; the power from the turbopump will be
removed and the pump will begin to slow down.
An emergency stop signal is provided via a remote
contact. This signal is active in any of the three
operation selections: FRONT, REMOTE, RS 232; when
activated, the display will be as shown in the following
figure.
S Y S T E M
O V E R R
I
D E
Power Failure
In the event of a power failure (momentary or long
term), the Turbo-V controller will stop the turbopump
and all the interconnected pumps/devices. The Turbo-V
vent valve device, if used, will vent the turbopump only
if the power failure is longer than the preset delay time.
When power is restored, the Turbo-V controller
automatically restarts the interconnected devices and
the turbopump in the proper sequence.
The display shows:
P U M P
I
S
S T A R T
I
N G
1
2
X X
K R P M
until normal operation achieved.
Summary of Contents for Turbo-V 301
Page 2: ...Turbo V 301 Rack Controller...
Page 3: ......
