Panasonic MINAS-BL GP series Instructions Manual

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

Contents

－ 33 －－ 32 －What is protective function?• Brushless motors, brushless amplifier MINAS-BL GP series have various protectivefunctions. When they are activated, the motor stops under a tripping state, which turnsoff (opens) trip output. (Factory default)• Trip detail is displayed only when the Digital key pad (option) is connected.• State of trip and corrective actionsIn tripped state, display of trip details appears on the 7-segment LED of the Digital keypad and the motor does not work.Check the detail of trip, remove the cause, and clear the trip.How to clear tripWhen the motor is tripped, remove the cause, and clear by any of the setting proceduresbelow:[1] Turn off power, and turn on power after 10 seconds. (Power resetting)[2] Press both and switch of Digital key pad simultaneously in trip detail displaymode.[3] Input the trip reset signal about 100ms or longer (when 10: Trip reset is set in Pr50 to53).[4] When Pr58 is “1”, input the operation start signal (run start signal, sequential run startsignal, jog signal, and homing start signal) about 1 second or longer.[5] Operation of communication software “PANATERM for BL” (download from our website) also enables clearing of trip.• When protective functions marked with “ * ” operate in the list of protective functionsdescribed on the next page and after, trip reset by the procedure [1] shown above. (Tripcannot be cleared by the procedure‚ [2], [3], [4], and [5].)• Setting change warning (CAU) and Digital key pad communication error(E_Cn) are not saved in trip history.• Undervoltage error (E-LV) is not saved in trip history when power is turned offnormally. It is saved only in instantaneous stop. (It is saved in trip history only whenundervoltage state is established once and then voltage is recovered to normal state.)Protective functionList of protective functionsDisplay onthe Digitalkey padTripnumber(RS485)Protectivefunction Causes Countermeasure2 Undervoltageerror(E-LV)The motor trips when internalDC voltage (voltage ofsmoothing capacitor of powersupply) is below specifiedvalue.Product of 100 V: Approx DC100 VProduct of 200 V: Approx DC200 VInvestigate the condition ofwiring and power supply.3 Overvoltageerror(E-OV)The motor trips when internalDC voltage (voltage ofsmoothing function of powersupply) rises andexceeds specified value.Product of 100 V: Approx DC200 VProduct of 200 V: Approx DC400 VIt is possible that decelerationtime is too short. Set longerdeceleration time.Not compatible with continu-ous lowering operation.LEDflashes— Overloadwarning(Electronicthermal)When load factor exceedsspecified value, the electronicthermal relay operates andmonitor display flashes. It is analarm fo50 to 130 W: 100％Reduce the load.Check the load factor in moni-tor mode.4 Overload error(Electronicthermal relay)(THr)The motor trips when motortorque is output continuouslyabove specified value.50 to 130 W: 115％Investigate the cause of over-load, and reduce the load,change the operating patternby making acceleration anddeceleration time longer, orapply design to increase thecapacity of motor.5 Overspeederror(E-OS)The motor trips when rotationspeed (actual speed) exceedsspecified value.Approx 6000 r/minEnsure that the actual speeddoes not exceed rated rotationspeed, such as overshootingby unmatching between loadand gain.6 Position error(E-POS)The motor trips when posi-tion error (difference betweencommand position and actualposition) is greater than Pr39 ×8 [pulses].Check the parameter againand adjust gain.7 * Positionerror counteroverflow(E-PO)The motor trips when the posi-tion error exceeds 8388607[pulse].Check the parameter againand adjust gain.When any of protective functions marked with “ * ” operates, trip reset by the procedure of [1] on P.32.