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ERROR MESSAGES
For a certain type of failure, the controller will self-
diagnose the error and the messages described in the
following table are displayed.
The error messages are displayed only when the option
hand held terminal is available.
MESSAGE
CHECK CONNECTION TO
PUMP
FAULT: OVERTIME SX
FAULT: PUMP OVERTEMP.
FAULT: CONTROLLER
OVERTEMPERATURE
FAULT: TOO HIGH L0AD
FAULT: SHORT CIRCUIT
FAULT: R2 DELAY OVER
OVERVOLTAGE
DESCRIPTION
Wrong connection between the pump
and the controller.
Within each step of the soft start mode
the rotational speed of the pump does
not reach the planned value within 15
minutes.
(X) is the step number from 0 to 9
indicating the step number not passed).
The upper bearing/pump temperature
exceeds 60 °C.
The controller transformer temperature
exceeds 90 °C.
In normal operation (after the starting
phase) the current drawn by the pump is
higher than programmed (1.5 A)
After the starting phase the output
connection is shorted (output current
higher than 2.2 A).
The pump rotational speed decreased
below
the
programmed
thereshold value, and the controller OFF
is selected, when R2 deenergizes.
Controller power supply circuitry is
faulty, or the Controller received a spike.
Check connection between controller and
pump.
Press the START push-button twice to start
the pump.
Verify that system has no leaks. Press the
START pushbutton twice to start the pump.
Wait until the temperature decrease below
threshold value.
Press
to start the pump.
Wait until the temperature decrease below
threshold value.
Press
to start the pump.
Check that the pump rotor is free to rotate.
Press the START push-button twice to start
the pump.
Check connections and shortages between
pump and controller.
Press
to start the pump.
Check for system leaks or gas load
speed
conditions.
To restart the pump apply the reset signal
to b8 pin of P17 connector.
Press the START push-button twice to start
the pump.
Should the message still be present, call
the Varian service.
48
INSTRUCTIONS FOR USE
REPAIR ACTION
the
START
push-button
the
START
push-button
the
START
push-button
87-900-856-01 (B)
twice
twice
twice
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