5.7 H: Terminal Functions254 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical ManualSetting 2F: Maintenance periodOutput closes when the cooling fan, DC bus capacitors, or DC bus pre-charge relay may require maintenance asdetermined by the estimated performance life span of those components. Refer to Periodic Maintenance on page 381.Setting 30: During torque limitOutput closes when the motor is operating at the torque limit specified by the L7- parameters or an analog input.This setting can only be used in OLV, CLV, AOLV/PM and CLV/PM control modes. Refer to L7-01 to L7-04: TorqueLimits on page 294 for details.Setting 31: During speed limitOutput closes when the speed limit has been reached. This function can be used in CLV and CLV/PM control modes.Setting 32: During speed limit in Torque ControlThe motor torque and load torque are not in balance, causing the motor to accelerate. An output terminal set to 32 closeswhen the motor reaches the speed limit. Refer to d5: Torque Control on page 206 and Indicating Operation at the SpeedLimit on page 208 for details.Setting 33: Zero Servo completeOutput closes when Zero Servo is enabled and the load is locked into position within the allowable deviation (b9-02). Forhow Zero Servo operates, see b9: Zero Servo on page 181.Setting 37: During frequency outputOutput closes when the drive is outputting a frequency.Figure 5.79Figure 5.79 During Frequency Output Time ChartSetting 38: Drive enableA digital output set for “Drive enable” will reflect the status of a digital input configured as a “Drive enable” input(H1- = 6A). If that digital input closes, then the digital output set for “Drive enable” will also close.Setting 39: Watt hour pulse outputOutputs a pulse to indicate the watt hours. Refer to H2-06: Watt Hour Output Unit Selection on page 256 for details.Status DescriptionOpen The conditions described below are not present.Closed1. The frequency reference has reached the upper limit set in d2-01.2. The frequency reference has fallen to the lower limit set in d2-02 or d2-03.3. Parameter b1-05 is set to 1, 2, or 3, and the frequency reference has fallen below the minimum output frequency (E1-09).Status DescriptionOpen The drive is not outputting a frequency (one of the following functions is being performed: stop, baseblock, DC Injection Braking (during initial excitation), ShortCircuit Braking).Closed Drive is outputting frequency.ONONOFFOFFONOFFONrun commandbaseblockcommandoutputfrequencyduring runduring frequencyoutputOFF