Mot Ion Unit S - Servotronix CDHD Series User Manual

Applicat ion Set up
The result ing plot in t he Scope screen will look sim ilar t o one shown in
Figure 6- 14. This plot shows t he signal levels of t he act ual input signal ( in volt s) .
As expect ed, t he sine encoder signals are close t o 1V peak -t o- peak.
Figu r e 6 - 1 4 . Ex a m ple of Signa ls fr om Sin e En code r
When exam ining t he sine and cosine signals from a resolver, you need t o
m ult iply t he signals by 0.0000939 ( calculat ed from 1/ 32768 x 10/ 3.25) .
The result ing plot in t he Scope screen will look sim ilar t o one shown in
Figure 6- 15. This plot shows t he signal levels of t he act ual input signal ( in volt s) .
Figu r e 6 - 1 5 . Ex a m ple of Signa ls fr om Re solve r
6 .7 M ot ion Unit s
The CDHD has configurable unit s of accelerat ion, velocit y and posit ion, for bot h
linear and rot ary m ot or syst em s. The unit definit ions can be a user preference or
a propert y of t he specific m ot or being used.
Use t he ServoSt udio M ot ion Un it s t ask screen for viewing and defining m ot ion
unit s.
The following param et ers are used t o m onit or and m anipulat e m ot ion unit s.
Va r Com
UNI TSROTPOS
148
D e scr ipt ion
The unit s of posit ion variables in a rot ary syst em .
CDHD
User Manual