19.a. The easiest place to install an ammeter into a stepper motor driver/motor circuit for system diagnostics is to A. remove a fuse and place the meter leads across the fuse clips. B. connect the meter across the center tap and phase leads of the motor. C. attach the meter in series with the driver’s power supply lead. D. disconnect a motor lead and attach the meter in series with that lead. 19.b. A servo system is oscillating at standstill. This is an indication that A. the system gain is too high. B. a driver fuse is blown. C. the following error limit has been exceeded. D. a motor winding is open

19.a. The easiest place to install an ammeter into a stepper motor driver/motor circuit for system diagnostics is to A. remove a fuse and place the meter leads across the fuse clips. B. connect the meter across the center tap and phase leads of the motor. C. attach the meter in series with the driver’s power supply lead. D. disconnect a motor lead and attach the meter in series with that lead. 19.b. A servo system is oscillating at standstill. This is an indication that A. the system gain is too high. B. a driver fuse is blown. C. the following error limit has been exceeded. D. a motor winding is open

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter16: Installation Of Heating, Cooling, And Refrigeration Systems

Section: Chapter Questions

Problem 13RQ

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