Component test method for variable speed motors

Details Component test method for variable speed motors Component test method for variable speed motors

1994-10-14

1995-10-17

Chilcot, Richard

Measuring and testing

Testing of apparatus

F25D 1900

Patent

active

054580110

ABSTRACT:
A method is disclosed for testing a heating and cooling system having a plurality of variable speed motors. Each motor has means for generating an output signal indicative of the motor's speed. The test method includes setting the first motor to a first speed setting and reading the output signal indicative of the motor speed. The first motor is then set to a second speed setting and the motor speed output signal is read again. This procedure is repeated for the remaining motors in the system. Then, each motor speed output reading is compared with a pre-determined acceptable range of speeds for that motor. If the reading value is outside of the desired of the desired range, an appropriate error signal is produced.

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patent: 5038625 (1991-08-01), Chen
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