Fanuc 366 Alarm [work] Direct

“Pulse coder connection disconnection (axis).”

The control is sending power to the motor to move it, but it is receiving no feedback signal (or an invalid signal) from the Pulse Coder. Essentially, the control is "blind" to the motor's position. Because the control cannot verify where the axis is, it kills the power immediately to prevent a crash. fanuc 366 alarm

The "PULSE MISS (INT)" alarm is a servo control error. The "INT" (Internal) designation points to a problem with the built into the servo motor. “Pulse coder connection disconnection (axis)