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MESSAGE
CHECK CONNECTION TO
PUMP
PUMP WAITING
INTERLOCK
FAULT: OVERTIME
FAULT: PUMP
OVERHEATED
FAULT: CONTROLLER
OVERHEATED
FAULT: OVERLOAD
FAULT: SHORT CIRCUIT
SYSTEM OVERRIDE
OVERVOLTAGE
OIL LEVEL AT MIN
DESCRIPTION
Wrong connection between the pump
and the controller (P31).
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 pump did not reach the expected
speed of 5500 KRPM 12 minutes after
startup with SOFT START deselected.
The temperature has exceeded one of
the following threshold values:
- 65 °C for the bearings
- 90 °C for motor.
- 60 °C for the water.
The controller transformer temperature
exceeds 90 °C or the temperature on the
outgoing
Mosfets
radiator
60 °C.
In normal operation (after the starting
phase) the current drawn by the pump is
higher than programmed (25 A)
After the starting phase the output
connection is shorted (output current
higher than 60 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 oil level sensor detects a level less
than the minimum allowed.
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.
Make sure that the system does not leak.
Press the START button twice to restart the
pump.
Wait until the temperature decrease below
threshold value.
Press
to start the pump.
Wait until the temperature decrease below
threshold value.
exceeds
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.
Check the insulation between motor and
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
Carry out pump maintenance as provided
by the manual.
48
INSTRUCTIONS FOR USE
REPAIR ACTION
the
START
push-button
the
START
push-button
the
power
cable
the
START
push-button
87-900-855-01 (B)
twice
twice
twice
and
twice
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