AMER LAMBAZ
Member
hello all
i have aproblem with connecting a vfd to a plc
the project is solar hot water supply
this project having a solar pump operation for switching on and switching off the solar pump .
the main issue is i want to connect the vfd with plc i konw that i should use :
Digtal Output to command the vfd to run/ stop
Analog Output to command the vfd speed
Analog Input for the vfd speed feed back signal to plc
Digtal Input as Run/Stop command to plc
Digtal Input as feed back from the vfd for Run/Fault status
but i didnt know the wiring arrangment and still having problem with scalling function in s7 312 cpu program
and iam using the TIA PORTAL V11
i will be thankfull for any suggestion
i have aproblem with connecting a vfd to a plc
the project is solar hot water supply
this project having a solar pump operation for switching on and switching off the solar pump .
the main issue is i want to connect the vfd with plc i konw that i should use :
Digtal Output to command the vfd to run/ stop
Analog Output to command the vfd speed
Analog Input for the vfd speed feed back signal to plc
Digtal Input as Run/Stop command to plc
Digtal Input as feed back from the vfd for Run/Fault status
but i didnt know the wiring arrangment and still having problem with scalling function in s7 312 cpu program
and iam using the TIA PORTAL V11
i will be thankfull for any suggestion