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When a fault has occurred it is possible to use the
Varian repair service. Replacement controllers are
available on an advance exchange basis through
Varian.
!
Before carrying out any work on the controller,
disconnect it from the supply.
MESSAGE
CHECK CONNECTION
TO PUMP
PUMP WAITING
INTERLOCK
FAULT: OVERTIME SX
FAULT: PUMP OVERTEMP.
FAULT: CONTROLLER
OVERTEMPERATURE
FAULT: TOO HIGH L0AD
FAULT: SHORT CIRCUIT
SYSTEM OVERRIDE
OVERVOLTAGE
CONTROLLER FAILURE
WARNING!
DESCRIPTION
Wrong connection between the pump
and the controller.
The interlock signal of P1 connector is
activated by an interruption of the link
between pin 3 and 8 of J1 connector, or
because the external interlock signal is
open.
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 is stopped by an emergency
stop signal provided via a remote
contact.
Controller power supply circuitry is
faulty, or the Controller received a spike.
Fuse blown
on
secondary of the transformer.
If a pump is to be scrapped, it must be disposed of in
accordance with the specific national standards.
ERROR MESSAGES
For a certain type of failure, the controller will self-
diagnose the error and the
the following table are displayed.
Check connection between controller and
pump.
Press the START push-button twice to start
the pump.
Reset the short circuit between pin 3 and
pin 8 of J1 connector, or close the external
interlock signal.
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 the START
push-button
to start the pump.
Remove the controller power cable and
check the emergency condition. Then
reconnect
press
to start the pump.
Press the START push-button twice to start
the pump.
Should the message still be present, call
the Varian service.
the
power
supply
Contact Varian for Maintenance.
48
INSTRUCTIONS FOR USE
messages described in
REPAIR ACTION
the
START
push-button
the
START
push-button
the
power
cable
the
START
push-button
87-900-868-01 (C)
twice
twice
twice
and
twice
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