IRADK31 Datasheet, PDF (10/24 Pages) International Rectifier – 1/3 HP-Phase Brushless DC(BLDC) Motor Controller Using IR3101/3/4

IRADK31
Figure 4. IRADK31 GUI Control Panel
This the main display for the application. User can control motor speed and rotation
direction in a way that is similar to Stand-alone Mode. The user can also monitor motor
speed and DC Bus Current. The Control Panel also allows users to access to the Setup
and Pattern Programming displays.
Main features:
• Motor Speed: This displays the actual speed of the motor in RPM, as determined by
Hall sensors, in both tachometer and digital (text) formats.
The RPM speed is relative to the Hall sensor frequency and the number of pole pairs in the
motor. It can be determined from the following equation:
RPM
=
(F _hall).(60)
pole _ pairs
The full-scale value is determined by the speed limit defined in the Setup window plus an
additional margin. The upper boundary of the green range represents the motor’s rated
speed. The upper blue boundary is set to scale the maximum safe speed well into the red
area. This boundary is halfway between the rated and full-scale speeds. The values may
be changed in the Setup Display to reflect the actual performance limitations of the motor.
• Fault Display: A scrolling text indicates the state of the fault conditions monitored by the
board. Under normal conditions, it will display a scrolling “No Fault” message and a green
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