I have an aja sputtering system that has pfeiffer hi pace turbo pump. The controller is a DCU 180 and it is connected to a TC110 on the turbo pump. The problem I am having is that whenever I turn on the system the screen and the buttons of the controller are not responsive. I opened it apart and checked it. The controller is receiving power and fuses are all right but the display is not responsive at all. The LEDs on the TC110 on the turbo pump is also not responsive. Because of this I cannot turn on the Turbo pump.
What should be done now?
Provided that the pump or the controller are not broken: You could try to plug off the power supplies of both the pump AND the controller for at least 10min. If there is an internal error, it often takes some time for Pfeiffer turbos to reset the error memory.
@martin,
Thanks for your help but I have tried that and did not work.
@Saim, I think you are right.
I hope you fixed the problem ok. We had a similar sounding problem here with our hi-pace turbo, no sign of life, but no fuses blown. It seemed that the power unit had been damaged somehow due to a spike in the mains supply we think. We took the risk and just sent the power unit off the pump to be repaired (and were sent a replacement very quickly). It solved the problem but it was expensive and we don't really know what got damaged! As a precaution we now isolate (disconnect) the mains supply to the pump when not in use.
The screen of the DCU receives its power through the TC of the turbo pump by the RS 485. The TC of the turbo is in turn powered by a transformer within the DCU through X2. Thus check the following:
- Cabling from DCU to TC (connection X2)
- Check for working TC
- cable connecting the RS 485 serial interface between the DCU and the TC of the turbo.
(The above is valid for the combination DCU 300 and TC 600)
Making sure BOTH the X2 cable and the RS 485 are connected fixed the problem for me.
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