Motor current / torqueL6-0210 % hysteresisTorque detection (NO)L6-03ONL6-0310 % hysteresisONFigure 5.37 Overtorque Detection OperationNote: The torque detection function uses a hysteresis of 10% of the drive rated output current/motor rated torque.Note: When overtorque occurs in the application, the drive may stop due to overcurrent (oC) or overload (oL1). To prevent this, an overloadsituation should be indicated to the controller before oC or oL1 occur in the drive. Use the torque detection for this purpose.n L6-01: Torque Detection SelectionThe torque detection function is triggered when the current/torque exceeds the levels set in parameter L6-02 for longer thanthe time set in L6-03. The parameters L6-01 select the detection condition and the operation at detection.No. Name Setting Range DefaultL6-01 Torque Detection Selection 0 to 4 0Setting 0: DisabledSetting 1: oL3 at Speed Agree - AlarmOvertorque detection is active only when the output speed is equal to the frequency reference, i.e., no detection duringacceleration and deceleration. The operation continues after detection and an oL3 alarm is triggered.Setting 2: oL3 at Run - AlarmOvertorque detection works whenever a Run command is active. The operation continues after detection and an oL3 alarm istriggered.Setting 3: oL3 at Speed Agree - FaultOvertorque detection is active only when the output speed is equal to the frequency reference, i.e., no detection duringacceleration and deceleration. The operation is stopped and an oL3 fault is triggered.Setting 4: oL3 at Run - FaultOvertorque detection works whenever a Run command is active. The operation is stopped and an oL3 fault is triggered.n L6-02: Torque Detection LevelThese parameters the detection levels for the torque detection function.No. Name Setting Range DefaultL6-02 Torque Detection Level 0 to 300% 150%n L6-03: Torque Detection TimeThese parameters set the time that the levels set in L6-02 have to be exceeded before an alarm/fault is triggered.No. Name Setting Range DefaultL6-03 Torque Detection Time 0.0 to 10.0 s 0.1 su L8: Hardware Protectionn L8-01: Internal Dynamic Braking Resistor Protection Selection (ERF type)This parameter selects the dynamic braking resistor protection when using an optional heatsink mounted braking resistor (ERFtype, 3% ED).No. Name Setting Range DefaultL8-01 Internal Braking Resistor Protection 0 or 1 05.7 L: Protection Functions118 YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manualhttp://nicontrols.com
