marke Posted April 2, 2017 Report Share Posted April 2, 2017 The first release pump control cards have three analog inputs for connection to transducers such as pressure and flow transducers.Each 4-20mA has a dedicated positive terminal for loop powered transducers.Many FLow meters are active outputs rather than loop powered.The pump control card lacks a ground terminal for connection to active 4-20 mA transducers. Use R1 of the RTD input as a ground terminal and all works well.The R1 terminal is connected to the zero volt line in the pump control starter. Best regards,Mark. Mark Empson | administratorSkype Contact = markempson | phone +64 274 363 067LMPForum | Power Factor | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | Pressure Transducers | Smart Relay | GSM Control | Mark Empson Website | AuCom | Soft Starters Link to comment Share on other sites More sharing options...
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