Code oL2: Drive Overload

Code type: Fault Manual section: Yaskawa V1000 Troubleshooting Load is too heavy. Reduce the load. Cycle times are too short during acceleration and deceleration. Increase the settings for the acceleration and deceleration times (C1-01 through C1-08). Voltage is too high for the V/f characteristics. - Adjust the preset V/f pattern (E1-04 through E1-10). This will mainly involve reducing E1-08 and E1-10. - Be careful not to lower E1-08 and E1-10 excessively because this reduces load tolerance at low speeds. Drive capacity is too small. Replace the drive with a larger model. Overload occurred when operating at low speeds. - Reduce the load when operating at low speeds. - Replace the drive with a model that is one frame size larger. - Lower the carrier frequency (C6-02). Excessive torque compensation. Reduce the torque compensation gain (C4-01) until there is no speed loss but less current. Speed Search related parameters are not set correctly. - Check the settings for all Speed Search related parameters. - Adjust the current used during Speed Search and the Speed Search deceleration time (b3-03 and b3-02 respectively). - After Auto-Tuning the drive, enable the Speed Search Estimation Type (b3-24 = “1”). Output current fluctuation due to input phase loss Check the power supply for phase loss.