Delta Tau Geo Brick, User Manual

Page: 179 / 294

Geo Brick Drive User Manual
Motor Setup 179
Plotting the phase position (Mxx71)
The scale factor is used to scale the phase position
to 0 - 360°. It is = 360 / Ixx71
Plotting the hall sensors (Mxx28)
$700000 Masking enables reading W, V, and U
in bits 20, 21, and 22 respectively
5.
Gathering, and plotting data for a short positive travel of the motor should look like:
Motor #1: Hall Sensors Vs. Phase Position
Time (sec)
H
al
l S
e
n
so
rs
U
V
W
M
xx
2
8
P
h
as
e
P
o
si
ti
o
n
M
xx
7
1
(
d
e
gr
e
e
s)
State 1
State 2
State 3
State 4
State 5
State 6
Primarily, we are interested in two occurrences on the plot; the transition of the halls data between
states 1 & 3, and the point of intersection of Mxx28 and Mxx71 at this transition. This represents the
Hall Effect Zero (HEZ).