YASKAWA CIMR-E7 series Technical Manual

Application Overview 2-15Drive Command and ControlThis section describes the network variables used to command and control the drive. Refer to the appropriate Technical Manual for additionalinformation.# Run/Stop Command – nviDrvSpeedStptThis network variable controls the run/stop command to the drive, as described below. The drive must be configured for a network Run/StopCommand (nciOpModeRun = 2) for this input to control the drive.Table 2.18 - Run/Stop Command – nviDrvSpeedStptnviDrvSpeedStpt Run/Stop CommandState Value0 donít care Stop1 0 Run1 > 0 Run# Speed Setpoint - nviDrvSpeedStpt, nviDrvSpeedScaleThese two network variables are used together with nciNmlFreq to control the speed setpoint, as follows:Speed Setpoint = nciNmlFreq * nviDrvSpeedStpt.value * nviDrvSpeedScaleFor example:Table 2.19 - Speed Setpoint - nviDrvSpeedStpt, nviDrvSpeedScalenciNmlFreq nviDrvSpeedStpt.value nviDrvSpeedScale Frequency Setpoint60 Hz 100% 100% 60 Hz60 Hz 100% 75% 45 Hz60 Hz 75% 50% 22.5 Hz50 Hz 60% 35% 10.5 Hz# Reverse Command - nviDrvSpeedScaleThis network variable is used to reverse the direction of the motor. A negative value for nviSpeedScale will cause the motor to reverse direction.# Fault / Fault Reset Control - nviOpCommandsBit 0 of this network variable is used to command an external fault. Commanding this bit to a ë1í will fault the drive and bring it to a controlledstop. ëEF0í is annunciated on the digital operator.Bit 1 of this input variable is used to reset the fault state of the drive. If no fault conditions exist, the fault state of the drive will be resetimmediately upon receipt of this command. If fault conditions persist, the reset command remains latched until all fault conditions are cleared, atwhich time the fault state is reset. The fault state of the drive may also be reset by issuing a RQ_CLEAR_ALARM mode request to the node.