Connect mitsubishi PLC with servo motor

[Guest kirch]

I have research for few day, but the servo motor still run in unstable mode. First, I have set all the parameter to the servopack, then i try to run the servo motor using plc pulse(PLSY function). It can output the pulse but the servo motor run sometimes and stop sometimes. I was totally out of order to solve this solution. So I just probe in to see whether anyone can help.

[maccxim 0]

Sorry Which type of servo motor ? Which type of connection are you using ? npn or pnp Are you using an interface/pulse converter/other device/... between plc outputs and your servo motor ? Some times i found the same problem but caused by wrong connections or differences in pulse logic between servo motor and plc. Bye Max