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Member Post posted an update
Hope pictures came through. Trane RTAE chiller. AFD 2A desaturation detected. Drive temps for this circuit are higher than circuit #1. This is liquid cooled drives. Noticed cooling lines for circuit 2(alarm circuit) were not sweating at all like circuit 1. Compressor did restart, but drive temps 20-30 degrees higher than circuit #1. Both liquid cooled pumps are running and pulling exact same amps. Just no coolant moving thru drive.
Member Post5 Comments-
@brad-kearney If you post this in one of the private groups everyone will get an email notification.
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@brad-kearney As for your question, have you tried checking the fluid level inside the tank, and the Strainer?
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If you don’t have it, you will need the service guide for the AFD3 drives.
Check the Transistors and the IGBTs. There is a Power Circuitry Checkout Procedure for the Rectifier and Inverter IGBTs in the service Guide. If you continue to experience this fault, you may want to involve your local Trane office. They will need to connect to the AFD3 drive and download the Archive files.
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@R514a do you have the guide? I can get it uploaded to the “member files” for the guys
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Emmanuel share this, hopefully it helps
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