INSTRUCTIONS FOR USE
68 87-900-986-01 (
C
)
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.
Or
The pump’s temperature is below 0 °C.
Check connection between controller and
pump.
Press the START push-button twice to start
the 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.
PUMP OVERTEMP.
The upper bearing/pump temperature
exceeds 60 °C.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice
to start the pump.
CONTROLLER OVERTEMP.
The controller enviroment temperature
exceeds 70 °C.
Or
The controller’s radiator temperature is
above 60 °C.
Wait until the temperature decrease below
threshold value.
Press the START push-button twice
to start the pump.
TOO HIGH L0AD
The current drawn by the pump is
higher than programmed.
Check that the pump rotor is free to rotate.
Press the START push-button twice to start
the pump.
SHORT CIRCUIT
After the starting phase the output
connection is shorted.
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
Controller power supply circuitry is
faulty, or the Controller received a spike.
Press the START push-button twice to start
the pump.
Should the message still be present, call
the Varian service.
POWER FAIL
Failure in the controller’s pump power
supply section.
Contact Varian for Maintenance.