2014年11月10日星期一

4 ~ 20 ma signal

Totally Enclosed Protect Feature and Three-phase Phase low rpm ac electric motor
Specifications
Specifications1.3-phase asynchronous motors 
2.IEC standard 
3.OEM 
4.Voltage:50HZ &60HZ;380V&415V 

5.Protection class: IP54 

No matter how many, than change of transformer is transmitter output generally acmotortrading.blogspot.com USES is 4 ~ 20 ma signal (far eastone purposes). Access, 100-5 transformer transducer output 20 ma corresponds to the actual current 100 a, 3 phase ac induction motor 4 ma corresponding to 0 a; Access, 300-5 transformer transducer output 20 ma corresponds to the actual current 300 a, 4 ma corresponding to 0 a. ABB inverter ACS800 parameters With resistance in Single phase motor circuit, the current is used to perform a task, to pass on information. If too small, the information will be a loss; (a little rent, a current is too small, to 3 phase induction motor the receiver, the current is too small, so that the receiver can't analysis and accept it.) But is too big, will blow out circuit (not seen collection circuit, so thin copper wire, or painted, current is too large, many with no?)

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