Holescherlj
Member
Hello, I am looking into using the Micrologix 1100 to control our facilities compressors in a lead/lag configuration and to keep them off when there is no demand. I was reading the user manuals and came across a section for trimpots.
What are they and how can they be used. The manual had a very brief decription but didn't make any sense. Could someone clue me in?
My second question involves the analog inputs. The built in inputs are 0-10VDC.I want to use a pressure transducer installed on the piping in our production floor to monitor the supply pressure to the floor. The controller is going to be installed in a compressor room 5 feet away from a 40HP motor and 15 feet from a 25HP motor. Needless to say there will be alot of noise.
I know 0-10VDC signals are more suceptible to noise then 4-20ma signals. I found this application note (A16562) In AB's knowledgebase on how to convert a 4-20ma signal to a 2-10V signal. I guess I'm wondering if this method would help with the noise or should I just use a 0-10VDC transmitter and deal with it.
I realize being this close to the compressor's motor isn't ideal but it would be a major pain to move the current enclosure.
Your thoughts and suggestions would be appreciated,
Luc
What are they and how can they be used. The manual had a very brief decription but didn't make any sense. Could someone clue me in?
My second question involves the analog inputs. The built in inputs are 0-10VDC.I want to use a pressure transducer installed on the piping in our production floor to monitor the supply pressure to the floor. The controller is going to be installed in a compressor room 5 feet away from a 40HP motor and 15 feet from a 25HP motor. Needless to say there will be alot of noise.
I know 0-10VDC signals are more suceptible to noise then 4-20ma signals. I found this application note (A16562) In AB's knowledgebase on how to convert a 4-20ma signal to a 2-10V signal. I guess I'm wondering if this method would help with the noise or should I just use a 0-10VDC transmitter and deal with it.
I realize being this close to the compressor's motor isn't ideal but it would be a major pain to move the current enclosure.
Your thoughts and suggestions would be appreciated,
Luc