Answer the following briefly. 1- Describe control objectives for a process control.

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter22: Sequence Control
Section: Chapter Questions
Problem 1SQ: Describe what is meant by sequence control.
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Q3:
Answer the following briefly.
1- Describe control objectives for a process control.
2- Why is the range of the transmitted electrical signal of the process variable
measurement 4-20 mA not 0-20mA?
Transcribed Image Text:Q3: Answer the following briefly. 1- Describe control objectives for a process control. 2- Why is the range of the transmitted electrical signal of the process variable measurement 4-20 mA not 0-20mA?
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