Pumps in master-slave configuration are illustrated in the flowchart
Thread Content
The AB pumps operate in a master-slave configuration; the backup pump starts automatically when pressure is low, and the backup pump is stopped manually when a high-pressure alarm is triggered. What are the meanings of each letter in the flowchart, and what is the control principle?
Refer to HG/T 20505 2014; it contains all of them
Could you please explain in detail the meaning of the letters?
The two devices are identical apart from their factory serial numbers; so what’s the point of distinguishing between a primary and a secondary one?
This is an irresponsible response; if it can’t be said, then such a meaningless reply shouldn’t be given, as it doesn’t solve the problem. Therefore, it is recommended to give a direct and straightforward answer.
First of all, it should be noted that there is an issue with the tag number for the pump you specified: the abbreviation for pump is P, followed by the main item code 43, and then the sequence number 42. For the pump you referred to as A, the correct tag number should be P-4342A; the tag number for pump B should be P-4342B. You need to adjust the other values as well. The initial letters for XYZ should be defined by you personally – L should stand for \"light\", H should represent the manual start/stop button, and A should indicate an alarm. Please also check the other drawings for further details.
There are terms like main pump and backup pump, but ABC... needs to be added after the tag number to distinguish them