Process Design: [Question of the Day] Wednesday, May 11, 2011
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Fill-in-the-blank: When a cascade control system is put into operation, the _________ loop is activated first, followed by the _________ loop. Note: (1) We hope that all users will participate actively; the first 50 participants to answer the questions will receive a reward. Thank you all for your support ； (2) Please reply with the answer hidden; otherwise it will be invalid. Hidden method: http://bbs.hcbbs.com/thread-492556-1-1.html (3) Please do not edit after replying. This question will be closed when the new Daily Question is released. The answer is: Deputy Head
Reply 1# crjgood: front-stage circuit, back-stage circuit
When putting a cascade control system into operation, the secondary loop is activated first, followed by the primary loop
First connect the secondary circuit, then the primary circuit
Reply 1# crjgood Deputy Chief
Main circuit and auxiliary circuit. The secondary circuit consists of a secondary variable detection transmitter, a secondary regulator, a control valve, and the secondary process ； The main circuit consists of a main variable detection transmitter, a main regulator, a secondary regulator, a control valve, a secondary process, and a main process. The secondary circuit serves for coarse adjustment; it should be activated first, followed by the primary circuit