Difference between revisions of "NVGate Torsional"

NVGate Torsional (view source)

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 =====Check after setting=====
 Run the shaft at a constant speed and look at the Tors signal: it must be '''flat''', with '''no spike once per revolution''', and its mean value must match the speed given by another sensor. If not, see the typical mistakes below.
-=====Typical mistakes (example: 8 pulses, gap of 2.4)=====
-{|class="wikitable" style="width:100%;"
-!Mistake!!What is entered!!What you see
-|-
-|'''Pulse / rev = only the pulses counted''' (Missing teeth not added)||Pulse / rev 8, Missing teeth 2||Speed '''wrong by +39 %'''
-|-
-|'''Missing teeth too small''' by one||Pulse / rev 9, Missing teeth 1||Speed '''too high by +16 %''', but the signal looks flat — easy to miss
-|-
-|'''Missing teeth = 0''' although there is a gap||Pulse / rev 8, Missing teeth 0||A '''big spike once per revolution''' (up to 62 %), mean speed +10 %
-|-
-|'''Missing teeth rounded up'''||Pulse / rev 11, Missing teeth 3||Correct here, but not always (a gap of 1.3 set to 2 is wrong). Always keep the whole number.
-|}
-With only a few pulses per revolution these mistakes are obvious. With many pulses (for example 58) the same mistakes give only a few percent and can go unnoticed: always do the check above.
-The gap must be at least 1 pulse long and at most 3 pulses (see above). The detailed test results are given in [[#Annexe : Setting Pulse/rev and Missing teeth|the annex at the end of this page]].
 ===Tutorial ===