M4 error grp 5

Hi,
i saw in a customer's log that he has Err Grp 5 = 16, because he has Speed 2 Decimal Point = 1:
what does this mean?
Unfortunately I found no help in user manuals.
Thanks
i saw in a customer's log that he has Err Grp 5 = 16, because he has Speed 2 Decimal Point = 1:
what does this mean?
Unfortunately I found no help in user manuals.
Thanks