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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efficiency Testing Three Phase Applications
DEMONSTRATION GUIDE
5. Select PWM Motor Drive Efficiency under the Applications/Test section on the left panel
and then click the Wizard button.
6. The wizard helps with wiring and shunt selections.
7. Select the three phase input and three phase output on the wizard and enter the expected
current in the appropriate box.
8. Click Finish when done and the page will direct you to the Efficiency Setup tab.
9. Verify that the instrument and group information and then click the check box for the
Measurement Efficiency.
10. PWRVIEW is now ready to take efficiency measurements.
11. Go to the Measure tab and then click the blue Start button. The measurements will start updating.
12. To add more measurements or change other settings, such as range and filters, go to the Setup
tab and select the desired settings.
NOTE: The measurements must be stopped to make any changes on the Setup page.
Stop the measurements by clicking the Stop button on the bottom of the Setup page
.
FURTHER SETTINGS IF REQUIRED
Torque and Speed Inputs. The overall efficiency of a motor drive system requires measuring
real-time speed and torque data. The PA3000 has four analog and two counter inputs to enable
various auxiliary input measurements such as torque and speed.
• Refer to the pin number for desired analog or counter input under Auxiliary inputs/outputs
and connect the signal (torque,speed, or others) directly to the respective pin on the
AUXILIARY INPUTS/OUTPUTS connector on the rear panel.
• To enable the auxiliary inputs using PWRVIEW, go to the Setup tab.
• On the Setup tab, go to the Wiring page and select the check box near the bottom of the
page for enabling the Auxiliary Inputs (Analog and Counters). A new tab page named Auxiliary
Inputs will be created.
Figure 2-5.
Auxiliary inputs
setup for torque
and speed
measurements.
