Hi friends , Here I have a problem with parker 690 plus ac drive V.5.6 The drive is running or controlling via digital inputs .but it has got a communication card Installed on it ,but we r not using communication .The problem is whenever I uploads the program to HMI It's showing some error COMM FAULT CODE N .But program saved successfully .can anybody help me , And give some information??

We faced same Error COMM FAULT CODE N Duruing drive running condition, Drive suddenly off & shows the above error

I am also facing same problem .
plz somebody  help me.

i have a the same problem to our 690 parker. showing a error code in digital pad.(comms fault code n) itry to replace the pad but still same trouble. i try a different ways of trouble shooting. and only one was successfully done. this is when i replace the pcb board of 690 Parker. it was running in normal operation mostly 2 weeks after than still thesame problem(comms fault code n) until now i try to find out what is the root behind this problem.