Troubleshooting - LEYBOLD TURBOTRONIK NT 20 Operating Instructions Manual

4 Troubleshooting

When a malfunction occurs, the TURBOVAC is braked
and the failure is indicated; see following table.
The red LED FAILURE lights permanently and one
green LED within the chain flashes.
After you have eliminated the cause of the failure, you
can reset the malfunction signal with the STOP com-
mand (key or remote control).
LED flashes Symptom
————————————————————————————————————————————————————————————————
No. 1 Linecord fault.
(below)
————————————————————————————————————————————————————————————————
No. 2 TURBOVAC is not
supported by the
TURBOTRONIK.
————————————————————————————————————————————————————————————————
No. 3 The TURBOVAC has not
attained the target speed
within 10 minutes.
————————————————————————————————————————————————————————————————
No. 4 Speed below minimum.
————————————————————————————————————————————————————————————————
No. 5 Temperature in the
TURBOTRONIK too high.
————————————————————————————————————————————————————————————————
No. 6 Temperature in the
TURBOVAC too high
or wrong coding.
————————————————————————————————————————————————————————————————
No. 7 Self-test
————————————————————————————————————————————————————————————————
No. 8 Not used.
————————————————————————————————————————————————————————————————
No. 9 Wrong mains connection.
GA 05.208/12 - 05/2003
Warning
Probable Cause
Motor connection line incorrectly connected.
Motor connection line malfunctioning.
TURBOTRONIK and TURBOVAC
incompatible.
Loose contact in connection line.
-2
Forevacuum pressure >10 mbar.
Pump blocked.
High vacuum pressure too high.
-2
Forevacuum pressure >10 mbar.
Pump blocked.
High vacuum pressure too high.
Frequent switching between acceleration and
braking.
Ambient temperature too high.
-2
Forevacuum pressure >10 mbar.
Frequent switching between acceleration and
braking.
Poor cooling or cooling line interrupted.
(coding error?)
Excessive current in the output stage of the
TURBOTRONIK; e.g. short-circuit.
Overcurrent, short-circuit
Strong mains interference
System failure
Mains voltage selector switch incorrectly set.
Before you open the TURBOTRONIK, plea-
se first disconnect the mains power supply
and disconnect the power cord. Since dan-
gerous voltages may nonetheless occur,
the unit should only be opened by a quali-
fied electrician.
Recommended Corrective Action
Check the motor connection line and connect it
correctly.
Replace the motor connection line.
Check the system.
Repair the connection lines.
Check the forevacuum.
Inform the Leybold after-sales service.
Check the vacuum chamber.
Check the forevacuum.
Inform the Leybold after-sales service.
Check the vacuum chamber.
Let the TURBOTRONIK cool down.
Ensure an adequate ventilation.
Operate the pump under normal load only.
Let the pump cool down and operate under
normal load only.
Check the cooling.
Turn off the POWER switch on the TURBO-
TRONIK, remedy the fault and switch on again.
Briefly switch off the TURBOTRONIK
and then switch on again.
Check the connections.
Call the Leybold service department.
Set the mains voltage selector switch correctly;
see Section 2.1.
Troubleshooting
27