Yaskawa OL4 (blinking) fault code meaning
Yaskawa / OL4 (blinking)
Series: L7
Overtorque detection 2 (warning)
drive
Meaning: The drive output current (V/f control) or output torque (vector control) exceeds the setting (L6-05) for longer than the specified time (L6-06); detection is performed when L6-04 is set to 3 or 4; motor overload
Possible causes
Source: Yaskawa L7 Series Elevator Drive User Manual, Fault Diagnosis P267