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  1. Hello All I am new to Mitsibishi servodrive, i am using a Beckhoff PLC TwinCAT3  and MR-J4-TM servo drive from mitsubishi , i connected the servo to the NTwinCAT using etherCAT. I was able to write a program where i was able to activate the servo from the TwinCAT using the mc_Power instruction . My question is , i am not able to run the servo using the mc_movevelocity and mc_moverelative . Do any one have any suggestion to how to go from here .. datei_Mr-J4-TM_TwinCat_EtherCAT.pdf
  2. Is it possible to setup Ethercat parameters from within the PLC program?  I am facing a situation where a machine is going to have changeable tooling fixtures and each fixture is going to have an EtherCAT device on it.  I am guessing they will need to be setup to look like the same node to the PLC, but they will have different physical IDs and different settings for some of the parameter fields.  They will be the same device so they will have the same parameter fields, just different values in those fields. I can also get these devices with EthernetIP as the fieldbus option.  In that case I would always have a network error because the PLC would always see one of the devices missing from the network.  is it possible to enable/disable Ethernet connections from within the program logic to avoid the error?
  3. Hello All I am new to sysmac studio, i am using a NJ301-1200  and R88M-KN10H servo drive , i connected the servo to the NJ using ethercat. I was able to write a program where i was able to activate the servo from the NJ using the mc_Power instruction . My question is , i am not able to run the servo using the mc_movevelocity and mc_moverelative . Do any one have any suggestion to how to go from here ..  
  4. My NX7 controller all of a sudden lost the EtherCAT configuration today. The safety PLC was in fault and some of the safety I/O slices on the NX EtherCAT coupler are missing. How does this happen and how do I fix it? I tried to download the configuration using synchronize but I keep getting coupler and NX-SL3 safety PLC errors. I connected to the coupler using USB and the actual configuration is missing some slices?     I only see an option to 'Apply Actual Unit Configuration' but nothing about going the other way.  The coupler is in error so is this why I can't send the project configuration with all the slices back to the coupler? The NX-SL3 safety PLC is in error because of these missing slices?
  5. Hi all, I have an NJ trying to talk to the secondary side of a Kuka EL6695-1001 EtherCAT bridge. The NJ appears to recognise the bridge but fails with an "acquisition error" or "Failed to get the lower network configuration information". Apart from these messages (and the fact it doesn't work), it all appears to configure correctly (memory sizes and PDOs). The activity light on the bridge 'IN' port is flashing (connection to NJ) and we have verified the Ethernet cable. I have tried the ESI file supplied by Kuka and one supplied by Omron - no joy. Any suggestions please? Thanks.
  6. Hello I am trying to use a Kollmorgen AKD servo drive in ethercat with the NX1P2 PLC, but I am having problems, I can activate the driver, reset, read the current position but I can not get it to move the axis ... I tried using JOG, Move Relative, Absolute ... and nothing. Can someone help me?
  7. Hello all, I'm new to Beckhoff and running a PLC with EtherCAT I/O slaves. If one of the slaves is disconnected from the network (power loss or network cable broken) the whole PLC freezes, is there a way of configuring ethercat such that it remains (partially) operational, thus showing me the I/O on the unaffected stations.
  8. Hello All I use NJ connected to E3NW+E9NC-TA Sensor Is it possible to send command go through EtherCAT to set the function such as "S Tune" or "UP" "DOWN".
  9. Hello all, Let's says my PLC has a refresh rate of 1 ms. Ethercat has a refresh rate of roughly 0.1ms. Correct me if I am wrong but every Plc scan time ethercat refreshes itself 10 times? Or does it only refresh itself one time with a time based on the Plc scan cycle of 1ms? Thank you
  10. With regard to an NJ EtherCAT network, all comms cables are shielded, but where should the shield connect to ground? I don't measure any connection between PE or FG on the NJ's power supply to the outer casing of the EtherCAT port on the NJ. (No connection to the Ethernet/IP port either.) I am also using a GX-JC06 junction slave, and none of the outer casings on this unit connect to ground either. On Omron G5 servo controllers, the EtherCAT link in and out port casings do not connect to ground either, but they ARE connected together, which means that the shielding path is maintained through. Is the grounding somehow made through active components, instead of a direct passive connection?