Panasonic MINAS-BL GP series Instructions Manual

Also see for MINAS-BL GP series: Technical instructions Technical instructions Manual

Contents

－ 37 －－ 36 －Protective functionTroubleshootingIf any trouble should be found, follow the steps below to determine the fault.If you cannot find out the cause, we recommend that you use the Digital key pad (option)or communication software “PANATERM for BL” (download from our web site) to checkthe detail of trip. If the motor or amplifier is in failure, or any part is damaged, or in anothercase of malfunction, contact the Panasonic partner where you bought the product.Phenomenon Detail of checking CountermeasureMotor does notrotateIs any error in wiring. Apply proper wiring.Check whether protective function isactivated.Check for tripping with Digital keypad.Turn off power once, and turn onagain.Reset tripping.Check whether power LED (green)is lighted up.If the LED is off when power is inputto the amplifier, failure is possible.Contact us for repair.Check whether the voltage of powerinput line is normal.Check the supply voltage and voltagedescribed on amplifier nameplate.Check whether run start signal isinput.Check wiring.Homing is not executed yet. First set the parameter for homingoperation and execute homingoperation.Check whether target position ofeach point of parameter is set.Set the target position.Motor stops duringthe run.Check whether protective function isactivated.Overload on the motor is possible.Reduce the load, increase thecapacity of motor, or increase thegear reduction ratio.Motor stops duringdeceleration.Check whether the inertia of load istoo large.Regenerative overload error wasactivated.Make the inertia smaller.Once turn off power and turn onagain for clearing trip.Increase the deceleration time withDigital key pad.Phenomenon Detail of checking CountermeasureLarge vibration ornoise.Output shaft of motor (gear head)and shaft of load are not aligned.Check the connection between theoutput shaft of motor (gear head) andthe load.Motor and gear head are notassembled correctly.Check the assembling conditionbetween motor and gear head, andtheir combination, and assemblethem properly.Damage to gear head or bearing. Contact us for repair.Gain is not adjusted properly. Gain must be adjusted. Lower thesetting.Motor rotatesreversely.Check whether the setting of rotationdirection (parameter) is wrong.Rotation direction of motor and thatof gear head output shaft are reversewith some gear reduction ratio ofgear head.Check the setting of parameter.Check the gear reduction ratio. Checkthe rotation direction.See the list of permissible shafttorque on P.29.Rotation speed isunstable duringoperation (actualspeed).Check whether the load fluctuatesgreatly.Reduce the fluctuation of load.Increase the capacity of motor.Increase the gear reduction ratio.Positioningaccuracy is notprecise.Check whether the setting ofparameter is wrong.Adjust the parameter of targetposition of each point.Check the parameter of coordinatesetting (relative and absolute).Home positionshifts.Chattering of home sensor Check wiring.Homing speed is too fast. Reduce the setting speed withparameter.Motor is too hot. Start and stop are repeatedfrequently.Check by display of load factor. Usewithin 80% is recommended.Parameter does notchange.Check whether parameters arechanged which are effective afterresetting.Turn off power once, and turn onagain for resetting.See the list of parameters.Rotation speed(actual speed) andtarget position arenot as expected.Check whether the setting ofparameter is wrong.Check the detail of parameter setting.See the list of parameters.Rotation of motor isabnormalCheck the combination of motor andamplifier.Use the motor and amplifier with thespecified combination.