ABB 800 drive -encoder error
ABB 800 drive -encoder error
(OP)
Hi,
I've got following problem -hope somebody can help- any input would be much appreciated
Machine runs with two motors powered by (ABB ACS800 drives) in master/slave configuration
On master drive we have intermittent encoder error (7301) which is popping up at motors low rpm and sometimes when speed is 0.
However the error is not popping up when drive is set to internal speed calculation
Parameter 33.01-Drive software version:AS7R7322
Parameter 33.02-Application sw version:ASARF012
Following has been done but it didn't resolf the problem:
1.Encoder is new one -replaced few months ago
2.Measured encoder waveform - ok
3.Checked cables,shields etc.. -ok
4.Checked all drive parameters-ok
5.Replaced RTAC pulse encoder interface module at the drive
I've got following problem -hope somebody can help- any input would be much appreciated
Machine runs with two motors powered by (ABB ACS800 drives) in master/slave configuration
On master drive we have intermittent encoder error (7301) which is popping up at motors low rpm and sometimes when speed is 0.
However the error is not popping up when drive is set to internal speed calculation
Parameter 33.01-Drive software version:AS7R7322
Parameter 33.02-Application sw version:ASARF012
Following has been done but it didn't resolf the problem:
1.Encoder is new one -replaced few months ago
2.Measured encoder waveform - ok
3.Checked cables,shields etc.. -ok
4.Checked all drive parameters-ok
5.Replaced RTAC pulse encoder interface module at the drive





RE: ABB 800 drive -encoder error
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RE: ABB 800 drive -encoder error
RE: ABB 800 drive -encoder error
Encoder cables are in cable tray together with 24V DC solenoid cables.
Measuring the encoder signal with scope meter we couldn’t observe any major noise etc.
RE: ABB 800 drive -encoder error
Or one that used to work fine and now does not?
If used to work, when did it stop working right? Think about anything that happened just before it stopped working right.... thunderstorm? power outage? rewired panel? etc?
If new app, then I agree it sounds like it is an installation issue with grounding/shielding.
Need to know above to be more helpful with ideas.........
RE: ABB 800 drive -encoder error
RE: ABB 800 drive -encoder error
RE: ABB 800 drive -encoder error
RE: ABB 800 drive -encoder error
RE: ABB 800 drive -encoder error
Milovan Milosevic