jstkrkim

Thank you for your prompt reply. I check my Power pmac system variables follow your mentions, but Motor[x].PosSf, Motor[x].Pos2Sf are set as 1. and I use just one positional encoder.(it means motor[x].PosSf=motor[1].Pos2Sf, motor[x].Actpos=motor[x].Actpos2, too.) As you attached diagram, if i use Motor[1].ActPos variable, this variable is already multiplied scale factors(Enctable.scalefactor, motor[x].Possf). and CompTable are applied also.(In my case, CompTable are empty) Don't know why different Basic PID with user algorithm by Simulink. it just simple and same structure PI-D controller

Hello there, I build simulink user servo algorithm as figure(a.jpg), following diagram from Power pmac user manual(b.jpg). and Tuning control gain(kp, ki, kvff, kvfb) to work motor well. then, The Same motor apply Basic PID(Motor[x].Ctrl=Sys.PidCtrl) with same gain. I assume both of control gain are same but the motor servo off due to exceed following error limit. The Basic PID in Power pmac is something different with the diagram in manual(b.jpg)? The Servo frequency is 6kHz both of them. (at Simulink config, setting fixed step 1/6000) Applying about 1/100 smaller kvff, kvfb gain than user servo, basic PID algorithm applied motor seems to control well.

Dear all members, Hello, I'm Kyoung-rock in Korea. I use 'NC Lite S/W' that NC software with UMAC developed by Mr. Song in Deltatau Korea.(I guess NC lite is similar algorithm with NC PRO2..) and I want to build on machine measuring(OMM) system with UMAC. I will use LVDT sensor to detect target. It will be execute signal process by accessory board as such as ACC-28E. So, Many data is needed downloading to PC from UMAC (X, Y, Z, Sensor signal...) In this case, the data is saved at rotary buffer to downloading. but the NC code also saved at rotary buffer. In rotary buffer, many sensor data and NC code is mixed. therefore, machine is stopped or data is ruined. I saw some kind of similar system below. 1. Precitech Freeform(DTM) 2. Moore Nanotech(DTM) both of them are used like to UMAC and company in USA. and they has OMM with LVDT. How can I get whole data from sensor working with NC motion? If I use NC PRO 2, didn't need to concern this problem? or Is there some solution existed? and PowerPMAC NC is available? Please check about this problem Thank you for your support. Best regard, Kyoung-rock.

Dear all members, Hello, I'm Kyoung-rock in Korea. I use 'NC Lite S/W' that NC software with UMAC developed by Mr. Song in Deltatau Korea.(I guess NC lite is similar algorithm with NC PRO2..) and I want to build on machine measuring(OMM) system with UMAC. I will use LVDT sensor to detect target. It will be execute signal process by accessory board as such as ACC-28E. So, Many data is needed downloading to PC from UMAC (X, Y, Z, Sensor signal...) In this case, the data is saved at rotary buffer to downloading. but the NC code also saved at rotary buffer. In rotary buffer, many sensor data and NC code is mixed. therefore, machine is stopped or data is ruined. I saw some kind of similar system below. 1. Precitech Freeform(DTM) 2. Moore Nanotech(DTM) both of them are used like to UMAC and company in USA. and they has OMM with LVDT. How can I get whole data from sensor working with NC motion? If I use NC PRO 2, didn't need to concern this problem? or Is there some solution existed? and PowerPMAC NC is available? Please check about this problem Thank you for your support. Best regard, Kyoung-rock.