Monitor Relay Programming; Pump Shutdown; Power Failure - Varian Turbo-V 1000 ICE Manual De Instrucciones

•
If the Soft Start mode has been deselected the display
will change and shows:
P U M P I S
1 2 X X K R P M
where:
1 2 = contrast inverted identifies the set point condition:
•
1 is displayed when relay S1 is energized and
the related output is 24 V.
•
2 is displayed when relay S2 is energized and the
related output is 24V.
XX KRPM = indicates the actual theoretical rotational
speed of the pump as a function of the controller output
frequency (range 3 to 38 KRPM).
HJ = displayed only when the heater jacket is
active.
HS/HL = indicates that the pump is
working in the High speed or
Low speed mode.
After START command, frequency
maximum level, then the frequency will decrease to a value
proportional to the pump rotational speed (about 3 KRPM if
the pump is completely stopped).
•
At this point if there are some deposits inside the
pump and the rotor is blocked, the controller
switches to the Hard Start routine and the following
is displayed:
H I G H P O W E R
[ - -
where:
•
the minus sign becomes a square (
the pump finishes its high-torque step. A
flashing square (
The controller finishes the Hard Start routine as soon
as the pump starts to rotate.
S T A R T I N G
H J H S
output will be at the
S T A R T
- - - ]
L
ZKHQ
L
LQGLFDWHV WKH DFWLYH VWHS
The pump will accelerate to its normal rotational speed.
•
During acceleration of the pump or during any
operating condition, it is always possible to select the
other parameters to be displayed pressing the PUMP
CURRENT or the CYCLE NUMBER pushbuttons.
•
After the run up time and 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
1 2 X X
where: XX = indicates the rotational speed (36 KRPM for
high speed, or 22 KRPM for low speed).

Monitor Relay Programming

•
The display shows:
H . S . T H R E S H O L D
S E T T I N G ;
where: XXKRPM = is the switch point of relay S1 at the
preset turbopump speed, adjustable from 00 to 38 KRPM.
The speed threshold will condition the S1 operation
(see the following cycle diagram] and it is factory-set to
36 KRPM.
The speed threshold will condition the S2 operation
(see the following cycle diagram] and it is factory-set to
24 KRPM.

Pump Shutdown

Press the front panel STOP push-button or remove the
remote signal; the power from the turbopump will be
removed and the pump will begin to slow down.

Power Failure

In the event of a power failure (momentary or long term),
the Turbo-V ICE controller will stop the turbopump and all
the interconnected pumps/devices. The Turbo-V ICE 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 ICE controller automatically
restarts the interconnected devices and the turbopump in
the proper sequence.
67
TECHNICAL INFORMATION
O P E R A T
K R P M H J
X X K R P M
87-900-951-01 (B)
I O N
H S