Glentek Inc. 208 Standard Street, El Segundo, California 90245, U.S.A. (310) 322-3026
52
Omega Series Digital PWM Amplifier Manual
E)
From the MotionMaestro
©
“Setup” menu, open the “Commutation” dialog and setup the follow-
ing items:
1) Motor type. Are you phasing a rotary or linear motor?
2) **Number of Poles.
3) **Encoder resolution.
4) Commutation angle offset = 0
(-30 degrees if Halls aligned phase to neutral?)
5) Commutation phase advance gain = 0
6) Init Method = Hall
7) Correction Method = Hall
8) Depress “Send Values To Amp” button
NOTE
: ** Refer to Appendix E if motor Poles and Encoder Resolution are unknown.
F) With the Commutation dialog still open, enable the amplifier. You will see on the amp, one
segment lit on the seven segment display. This display segment indicates the Hall state. Ro-
tate the motor shaft by hand, such that the segments rotate clockwise as viewed from the top of
the drive. Verify the Encoder Data Position counts up in the Commutation dialog. If not, check
the Encoder Data Reverse box. The Encoder Data Position should now count up as the seven
segment display cycles clockwise.
G) Save the new settings by selecting “Save to
NVM” from the Setup menu. Answer Yes
when prompted to save.
H) Connect the 3-phase Y-connected resistor
load to the
Motor
power leads for monitor
ing the motor back EMF (BEMF).
NOTE:
do not connect the motor leads or the
resistor load to the amplifier.
I) Connect the channel 1 scope probe to the
amplifiers Analog Out pin. Connect the
channel 1 scope common to the amplifiers
Common pin. Set the channel 1 vertical
scale to around
2V per division
. From the
“Setup Analog Input/Output” dialog, Set the
Analog Output Signal Source to “R Current
Command” and directly below change the
Analog Output Signal Gain to 100 percent.
J) Connect the channel 2 scope probe to one
of the motors leads. Connect the channel 2
scope common to the center of the Y-
connected resistor load. Set the channel 2
vertical scale to around
2V per division
.
Set the horizontal scale to around
100 ms
per division
. Scaling may need to be
changed in order to best see the data.
Summary of Contents for Omega SMC9930
Page 73: ...Glentek Inc 208 Standard Street El Segundo California 90245 U S A 310 322 3026 73 Appendix K...
Page 75: ...Glentek Inc 208 Standard Street El Segundo California 90245 U S A 310 322 3026 75 Appendix K...
Page 77: ...Glentek Inc 208 Standard Street El Segundo California 90245 U S A 310 322 3026 77...
