Panasonic MINAS-BL GU series Technical Instructions

Also see for MINAS-BL GU series: Operating instructions

3636 37MEMOTroubleshootingPhenomenon Detail of checking Measure, etcMotor rotatesreversely.Check the rotate direction setting.Check the position of the rotate directionselector switch (CW / CCW) on the frontof the product. When using the input “ I 2”,set the rotate direction selector switch toCCW.Rotation direction of the motor andgear output shaft may be reversedfor some gear reduction ratio ofgear head.Check the gear ratio and rotation direction.Please refer to the table of the permissibletorque (P.28).Rotation speedis unstable duringoperation (actualspeed).Check whether the load fluctuatesgreatly.Reduce the fluctuation of load. Increasethe output capacity.Parameter dosenot change.Check whether operation startsignal is input.Some parameters cannot be changedwhen operation instruction is on. (See thecheck column of parameter list on P.47.)Turn off operation instruction beforechanging.Motor does notrotate smoothlyat low speed.The inertia of the load is small,such as running the motor alone.• Drive with load connected• Increase the load inertia, such asattaching a flywheel.• It may be necessary to adjust the speedloop proportional gain larger. Pleasebe aware that increasing the speedloop proportional gain may increase thevibration during high-speed operation.Peripheralelectronicdevicesmalfunction.During operation, radio noise maybe generated from input / outputlines, brushless motors, brushlessamplifiers, etc., which may affectelectronic devices.It can be suppressed to some extentby installing a noise filter at the input,storing the electric wire inside the conduit,installing a noise filter for control signal,and so on.Earth leakagebreaker worksunnecessarilywhen drivingLeakage current increases whenbrushless motor and brushlessamplifier are operated.Please use self-system and other-systemearth leakage breaker with harmoniccountermeasure applied.