INSTRUCTIONS FOR USE
68
87-900-913-01 (N)
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
DESCRIPTION
REPAIR ACTION
CHECK CONNECTION TO
PUMP
Wrong connection between the pump
and the controller.
Check connection between controller and
pump.
Press the START push-button twice to start
the pump.
PUMP WAITING
INTERLOCK
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.
Reset the short circuit between pin 3 and
pin 8 of J1 connector, or close the external
interlock signal.
FAULT: PUMP OVERTEMP.
The upper bearing/pump temperature
exceeds 60 °C.
The lower bearing/pump temperature
exceeds 80 °C.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice
to start the pump.
FAULT: CONTROLLER
OVERTEMPERATURE
The controller transformer temperature
exceeds 90 °C or the temperature on
the outgoing Mosfets radiator exceeds
60
°
C.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice
to start the pump.
FAULT: TOO HIGH L0AD
In normal operation (after the starting
phase) the current drawn by the pump is
higher than programmed (8 A).
Check that the pump rotor is free to rotate.
Press the START push-button twice to start
the pump.
FAULT: SHORT CIRCUIT
After the starting phase the output
connection is shorted (output current
higher than 38 A).
Check connections and shortages between
pump and controller. Press the START
push-button twice to start the pump.
SYSTEM OVERRIDE
The pump is stopped by an emergency
stop signal provided via a remote
contact.
Remove the controller power cable and
check the emergency condition. Then
reconnect the power cable and
press the START push-button twice
to start the pump.
OVERVOLTAGE
The controller has received a random
signal or the line voltage is not
compatible with the setting of the internal
voltage switch.
Press the START push-button twice to start
the pump.
Should the message still be present, call
the Varian service
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