690 Motor Encoder Fault A run was requested but no motor feedback was detected. The delay between the run request and the fault occuring is set with SCN. Improper brake adjustment. Improper feedback delay. is it the first run of the day when it occurs. 813 Negative Torque Limit error, The torque command signal tried to exceed the negative torque limit value. Sounds like brake to me. Or noise on encoder wiring. 5vdc power supply low?