32 – Pvd3675_Gb_Ey_Septembre_2017
3.2.7. Speed ripple
The typical speed ripple for a EY motor with a resolver at 4000rpm is 3% peak to peak.
This value is given as indicative data because depending on the settings of the drive
(gains of both speed and current regulation loops, presence of filtering or not, load
inertia, resistant torque and type of sensor in use), without external load (neither external
inertia nor resistant torque).
3.2.8. Cogging torque
The typical cogging for a EY series below is the maximum value peak to peak in N.cm:
Motor
Cogging Maxi
[N.cm]
EY310 2.5
EY420 4.4
EY430 5.7
EY620 5.3
EY630 6.8
EY820 9
EY840 16
EY860 20
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