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TEST RUNNING MOTORS
The TI-3000 incorporates patented commutation converter technology
to let you perform a no-load test run on a wide variety of permanent magnet brushless motors.
Test running the motor can be used to verify the repair work, debug installation problems,
verify commutation setting, and perform other trouble shooting procedures. While the primary
strength of the TI-3000 is in running brushless motors, it can be used to run permanent
magnet brush type motors.
Using the
TI-3000 you can:
- Be confident that a repaired motor will run on the customer's equipment.
- Simplify employee training and reduce mistakes by using one multi-purpose test instrument.
- Test run a motor either in your shop or at your customer's site.
- Part of the Family
The TI-3000 equipment was designed to work well independently or in conjunction with your
other equipment from the Mitchell test equipment family. Cables that you have either
purchased or fabricated for use with the TI-5000EX or TI-7000 testers are pin compatible
with the TI-3000. A special test harness allows you to route quadrature pulse encoder
outputs from the TI-3000 to the TI-5000EX or TI-7000 testers. This makes it simple to run Continuous
Count Tests and Phase Angle Tests on a quadrature pulse encoder while the motor is being
test run with the TI-3000 system.
As with other members of the family, the TI-3000 capability is continually expanding to
provide new support options that you may purchase to make it an even better investment
for your facility. This modular approach to support options allows you to customize
your test equipment with the capability that your business requires. This approach
provides the most efficient use of your test equipment dollars.
- Easy to Use
The TI-3000 system is easy to operate using the following simple steps:
- Connect the motor armature leads to the amplifier using the quick change terminal
block connector.
- Connect the feedback device to the proper TI-3000 terminal block.
- Select the feedback and enter parameters if necessary using the TI-3000 built-in keypad
and display.
- Press the DEBUG Key, turn the motor by hand, and verify proper commutation from the
TI-3000 display.
- Press the RUN Key and adjust to the desired speed and direction using a 10 turn
potentiometer.
A built-in diagnostic routine can ensure that proper connections have been made
and that the commutation conversion is producing the correct signals for the amplifier.
Press the DEBUG key, rotate the motor (and encoder), and watch the display to see
that the correct commutation pattern is being produced before attempting to run the motor.
During the run the RPM is displayed on the LCD display.
Resolver motors are run as generic feedback devices by entering parameters required for the
TI-3000 to produce the correct commutation. These parameters are determined the first time
a particular motor is encountered by running a simple series of tests on the motor/feedback combination
and recording the results on a worksheet. The parameters are then entered into the TI-3000
using the Setup function. Later when the same type of motor is encountered again, it is simple
of matter of entering the parameters into the TI-3000 from the worksheet documentation.
A small breakout board is supplied for connecting an oscilloscope to the resolver
signals to verify clean signals free from distortion. The TI-3000 generates the resolver
excitation signal, and the frequency can be set using a keypad menu function.
Quadrature pulse incremental encoder motors are also run as generic feedback devices in a manner
very similar to that just described for resolver motors.
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