LEYBOLD TURBOTRONIK NT 20 - Troubleshooting; Malfunction Indicators

Troubleshooting
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).
Warning
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.
27
GA 05.208/12 - 05/2003
LED flashes Symptom Probable Cause Recommended Corrective Action
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No. 1 Linecord fault. Motor connection line incorrectly connected. Check the motor connection line and connect it
(below) correctly.
Motor connection line malfunctioning. Replace the motor connection line.
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No. 2 TURBOVAC is not TURBOTRONIK and TURBOVAC Check the system.
supported by the incompatible.
TURBOTRONIK. Loose contact in connection line. Repair the connection lines.
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No. 3 The TURBOVAC has not Forevacuum pressure >10
-2
mbar. Check the forevacuum.
attained the target speed Pump blocked. Inform the Leybold after-sales service.
within 10 minutes. High vacuum pressure too high. Check the vacuum chamber.
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No. 4 Speed below minimum. Forevacuum pressure >10
-2
mbar. Check the forevacuum.
Pump blocked. Inform the Leybold after-sales service.
High vacuum pressure too high. Check the vacuum chamber.
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No. 5 Temperature in the Frequent switching between acceleration and Let the TURBOTRONIK cool down.
TURBOTRONIK too high. braking.
Ambient temperature too high. Ensure an adequate ventilation.
Forevacuum pressure >10
-2
mbar. Operate the pump under normal load only.
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No. 6 Temperature in the Frequent switching between acceleration and Let the pump cool down and operate under
TURBOVAC too high braking. normal load only.
or wrong coding. Poor cooling or cooling line interrupted. Check the cooling.
(coding error?)
Excessive current in the output stage of the Turn off the POWER switch on the TURBO-
TURBOTRONIK; e.g. short-circuit. TRONIK, remedy the fault and switch on again.
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No. 7 Self-test Overcurrent, short-circuit Briefly switch off the TURBOTRONIK
and then switch on again.
Strong mains interference Check the connections.
System failure Call the Leybold service department.
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No. 8 Not used.
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No. 9 Wrong mains connection. Mains voltage selector switch incorrectly set. Set the mains voltage selector switch correctly;
see Section 2.1.