I have a problem with an installation that manifests as Error 17 in a house when the lift goes from ground to 2nd floor. It is a 6 x Multi-2 system, 3-Ph, 2 inverters per phase.
Currently Comms cables are:
- At least 10cm from any electrical cables. Where it crosses (1 incidence), it crosses at 90 deg.
- Comms cables are CAT6A, as short as possible.
- Works with load from zero and varying between 2 and 4 kW (normal house load).
- As soon as lift starts (3Ph lift) the inverters switch off with error 17, followed by the normal recovery.
All S/W at latest version 2623-510 on inverters and Cerbo at v3.32.
Works correct with 3 x Multi-2’s but problem with 6 x Multi-2’s.
SO, I suspect the VSD of the lift is causing harmonic load problems. It draws 10A per phase (400/230v).
I have an oscilloscope that can do FFT, so I want to measure harmonics at some stage. (Need to find correct probes, which I have not used in years.)
Please comment if you believe I am on the right track.