LEYBOLD TURBOTRONIK NT 151/361

Questions and Answers

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paulnorrisAug 15, 2025
How to troubleshoot LEYBOLD TURBOTRONIK NT 151/361 Media Converter when no LEDs turn on?
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  Ashley TorresAug 15, 2025
  If all LEDs on your LEYBOLD Media Converter fail to illuminate when you switch on the mains voltage, there might be several reasons. First, ensure that the mains plug is properly inserted or the power is switched on. Check the fuse and replace it if it's malfunctioning. Verify that the printed circuit board for mains voltage setting is correctly plugged in. Make sure you are using the correct fuse value (5 A fast-blow for 220/240V or 10 A fast-blow for 100/120 V). If these steps don't resolve the issue, it could be due to a short circuit in either the rectifier section or the mains transformer, requiring professional Leybold service.
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dianemitchellAug 18, 2025
What to do if FAIL LED is continuously on LEYBOLD Media Converter?
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  douglasweaverAug 18, 2025
  If the FAIL LED on your LEYBOLD Media Converter illuminates and remains on continuously during acceleration or normal operation, the short-circuit monitoring for the TURBOTRONIK may have tripped. To resolve this, withdraw the mains plug from the TURBOTRONIK, inspect all connections, and leave the TURBOTRONIK disconnected from the mains for at least 1 minute. Then, reconnect and restart the TURBOVAC. It could also indicate an internal or external short-circuit on the TURBOTRONIK, or extreme electromagnetic spurious pulse.
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Kevin MartinAug 21, 2025
Why is the FAIL LED flashing at 2 Hz on my LEYBOLD Media Converter?
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  Brandon RobertsAug 21, 2025
  If the FAIL LED on your LEYBOLD Media Converter comes on during acceleration or normal operation and flashes at 2 Hz, it indicates that the thermal switch in the TURBOVAC has opened. To address this, you should repair the cooling system. Then, press the STOP button or switch off the TURBOVAC using the remote control. Allow the TURBOVAC to cool down before restarting. This issue is likely caused by a failure in the air- or water cooling system.
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Tammy GonzalezAug 25, 2025
What does it mean when the FAIL LED flashes at 1 Hz on LEYBOLD TURBOTRONIK NT 151/361 Media Converter?
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  Kathleen DavisAug 25, 2025
  If the FAIL LED on your LEYBOLD Media Converter illuminates during acceleration or normal operation and then flashes at 1 Hz, it signifies that the pump is overloaded or the pump speed is too low (less than 150 Hz). You should eliminate the fault in the vacuum system. Press the STOP button or switch off the TURBOVAC using the remote control, then restart. This is probably due to a fault in the vacuum system.
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Christie HuynhAug 27, 2025
Why is ACCEL LED on for too long on LEYBOLD TURBOTRONIK NT 151/361 Media Converter?
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  Kaitlyn FergusonAug 27, 2025
  If the ACCEL LED remains illuminated for an extended period after starting your LEYBOLD Media Converter, and the NORMAL LED does not turn on, it indicates that the pump speed is too low, specifically below approximately 80% of the nominal speed. To resolve this, correct the fault in the vacuum system. Press the STOP button or switch off the TURBOVAC using the remote control, then restart. Consider using a larger backing pump, as the issue might be a fault in the vacuum system.
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webertracyAug 30, 2025
What to do if LEDs cycle after initialization on LEYBOLD Media Converter?
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  lisanguyenAug 30, 2025
  If, after switching on the mains voltage and completing the initialization phase of your LEYBOLD Media Converter, all LEDs except the POWER LED come on cyclically in sequence, this could indicate a connection issue between the TURBOVAC and TURBOTRONIK. Ensure that the connection line is correctly connected. If the problem persists, the self-test may not have completed successfully.
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Lisa HansenSep 2, 2025
Why does ACCEL LED only light when START is pressed on LEYBOLD Media Converter?
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  williamblackSep 2, 2025
  If the ACCEL LED on your LEYBOLD Media Converter illuminates when you press the START button but turns off when you release it, it could be due to a missing link across pins 2 and 3 on the terminal block (4/4) on the rear of the unit. Connect the link. Alternatively, the circuit might be interrupted at the stop pushbutton (if external start/stop pushbuttons are fitted). Ensure the stop button is closed to start the TURBOVAC.
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Jordan TranSep 5, 2025
What to do if ACCEL LED is on and FAIL LED flashes at 2 Hz on LEYBOLD TURBOTRONIK NT 151/361 Media Converter?
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  Michael RobertsonSep 5, 2025
  If, when you press the START button on your LEYBOLD Media Converter, the ACCEL LED illuminates and the FAIL LED flashes at 2 Hz, it indicates that the thermal switch for the pump has opened. Check the cooling system and repair if necessary. Press the STOP button or switch off the TURBOVAC using the remote control. Allow the TURBOVAC to cool down, then restart.
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reyesdebraSep 8, 2025
Why does the pump not accelerate when ACCEL LED is on LEYBOLD TURBOTRONIK NT 151/361 Media Converter?
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  Tina RichSep 8, 2025
  If the ACCEL LED on your LEYBOLD Media Converter illuminates, but the pump does not accelerate, it may be due to the remote control not being connected correctly. Ensure that the remote control is properly connected to the terminals.
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Philip HillSep 12, 2025
Why does LEYBOLD TURBOTRONIK NT 151/361 Media Converter TURBOTRONIK fail for 20 seconds?
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  rogerslisaSep 12, 2025
  If the TURBOTRONIK on your LEYBOLD Media Converter fails for approximately 20 seconds and then becomes ready to start again, it suggests that electromagnetic interference levels exceeding the standards have resulted in a RESET. Start the TURBOVAC after about 25 seconds. Reduce electromagnetic interference levels.

Summary

Safety and Handling Information

Personnel Qualification and Safety Warnings

Only qualified personnel or Leybold Service may work on the converter. Potentially fatal voltages are present.

ESD Precautions

Converter contains components sensitive to static discharge. Handle with care.

Maintenance and Cleaning

Converter requires no servicing. Contamination can cause malfunctions. Recommend cleaning by Leybold Service every three years.

EMI and Unauthorized Modifications

High interference levels may cause a RESET. Avoid unauthorized modifications.

Product Overview and Specifications

Design and Functionality

Explains the TURBOTRONIK's purpose, driving turbomolecular pumps, and operational LED indicators (POWER, ACCEL, NORMAL, FAIL).

Standard Specifications

Lists catalogue numbers, mains lead types, and required fuses for different models.

Technical Data

Provides detailed technical specifications including voltage ranges, frequency, power consumption, output voltage, speed, and dimensions.

Ordering Data

Lists catalogue numbers for the electronic frequency converter and connection leads.

Connection and Installation Procedures

Mains Voltage Selection and Fuses

Details how to select the correct mains voltage setting and fuse for the TURBOTRONIK.

Remote Control Options

Explains four optional operating modes selectable via terminal connections for remote control.

TURBOVAC Pump Connection

Describes how to connect the TURBOTRONIK to TURBOVAC pumps and connection line length limits.

Unit Fitting and Mains Connection

Covers installation in a rack, ventilation, and connecting the mains cable.

Operation and Troubleshooting

TURBOTRONIK Start-up

Outlines the initialisation sequence, LED indications, and readiness for operation after plugging in the mains.

TURBOVAC Start-up

Details the procedure for starting the TURBOVAC pump, including LED indications and acceleration phase.

TURBOVAC Shut-down

Explains how to stop the TURBOVAC pump and the subsequent steps, including cooling and venting.

Troubleshooting Guide

Lists symptoms, probable causes, and recommended corrective actions for common operational problems.

Compliance and Technical Declarations

EEC Declaration of Conformity

Declares compliance with EEC directives and harmonized/national standards for safety and EMC.