lenze servodriver choice of profibus or FM354 solution

Last edited by: easy_dev at: 5/6/2012 9:07 PM

Hello, 1st thank you for the quality of your support & works. :) So, that''''''''s the deal i''''''''ve a lenze servomotor controlled by servodriver lenze 9300 ''''''''standards'''''''' the servomotor will be used in the positioning of an angle trough a carriage for punching & cutting tasks. so how to do that with a precision of 1mm. regarding the mechanical system and that also there''''''''ll be pressers units for the maintaining of the angle before each operation. the api system will be centred arround S7-1200 CPU. So, controlling servodriver by using profibus connection will lead to the same goal. else, i''''''''ve to use FM354 positioning module instead with S7-300 CPU, and for that how to communicate between the two CPU for example: 1st station S7-315 + FM354 : for positioning tasks 2nd station S7-1200 + SM In/Out modules : for commanding units, sending axis profile to 1st station and also receiving status of positioning from the 1st station. so, in this case how to establish a profibus communication between S7-1200 as master and S7-300 as slave or maybe the profinet protocol will be more suitable another part what about the servomotor technology function included in S7-1200 CPU using PWM output, can i get the same precision with it. knowing that we''''''''re talking about a mechanical system. but in this case we will talk about an open loop ctrl. is there a way to transform that to an efficient positioning system with close loop ctrl for example by reading curent position using profibus and injecting that to the bloc function for the setpoint calculation. the main problem is what precision can we get ?. need your help, Best regards my advice: don''''''''t worry be :)