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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.
MESSAGE
CHECK CONNECTION TO
PUMP
PUMP WAITING
INTERLOCK
FAULT: PUMP OVERTEMP.
FAULT: CONTROLLER
OVERTEMPERATURE
FAULT: TOO HIGH L0AD
FAULT: SHORT CIRCUIT
SYSTEM OVERRIDE
OVERVOLTAGE
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.
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.
After the starting phase the output
connection is shorted (output current
higher than 32 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.
The error messages are displayed only when the option hand
held terminal is available.
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.
Wait until the temperature decrease below
threshold value. Press the START push-
button twice to start the pump.
Wait until the temperature decrease below
threshold value. Press the START push-
button twice 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 twice 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
68
INSTRUCTIONS FOR USE
NOTE
REPAIR ACTION
the
power
cable
the
START
push-button
87-900-885-01 (D)
and
twice
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