Mentor MP
Mentor MP UG Iss 5.book
Mentor MP UG Iss 5.book
- No tags were found...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Safety<br />
Information<br />
Product<br />
information<br />
Mechanical<br />
Installation<br />
Electrical<br />
installation<br />
Getting<br />
started<br />
Basic Running the<br />
parameters motor<br />
Optimization SMARTCARD<br />
operation<br />
Onboard<br />
PLC<br />
Advanced<br />
parameters<br />
Technical<br />
data<br />
Diagnostics<br />
UL<br />
information<br />
11.3 Menu 3: Speed feedback and speed control<br />
Speed accuracy and resolution<br />
Digital reference resolution<br />
When a preset speed is used the reference resolution is 0.1 rpm. Improved resolution can be obtained by using the precision reference (0.001 rpm).<br />
Analog reference resolution<br />
The analog input has a maximum resolution of 14 bits plus sign. The resolution of the reference from analog inputs 2 or 3 is 10 bits plus sign.<br />
Analog feedback resolution<br />
The resolution for both Armature voltage and tachogenerator feedback is 10 bit plus sign.<br />
Accuracy<br />
With encoder feedback the absolute speed accuracy depends on the accuracy of the crystal used with the drive microprocessor. The accuracy of the<br />
crystal is 100 ppm, and so the absolute speed accuracy is 100 ppm (0.01 %) of the reference, when a preset speed is used. If an analog input is used<br />
the absolute accuracy is further limited by the absolute accuracy and non-linearity of the analog input. If analog feedback is used the accuracy is even<br />
further limited.<br />
<strong>Mentor</strong> <strong>MP</strong> User Guide 105<br />
Issue: 5<br />
www.controltechniques.com