Panasonic MINAS A4P Series Instruction Manual

Contents

Panasonic MINAS A4P Series Instruction Manual Manual pdf 165 page image

165[When in Trouble]When in TroubleWarning Function• In MINAS-A4P Series, a warning is given before a protection function works and you can check the ma-chine status such as overload in advance.When a warning has been given, a warning code below blinks slowly on the 7-segment LED at the front panel.• When an overload warning or over-regeneration load warning has been given, referring to the counter-measures taken by relevant protection function.• When a battery warning has been given, replace the battery for absolute encoder with a new one. Whenthe battery has been replaced, perform Alarm Clear to the servo driver once to clear the battery alarm.1618408889Overload warningOver-regeneration load warningBattery warningFan lock warningExternal scale alarmWarning name DescriptionWarningcode numberThe load has been 85% or more of the overload protection level.The load has been 85% or more of the over-regenerative load protection level.Voltage of a battery for absolute encoder has been approximately 3.2 V or less.A fan has stopped for 1s or more.An external scale temperature has been 65flC or more or signal intensity is insufficient(mounting must be adjusted). This is enabled only for the full-closed control.Protective Function (Detail of Error Code)Protectivefunction Causes MeasuresErrorcode No.Voltage between P and N of the converter portion of thecontrol power supply has fallen below the specified value.1)Power supply voltage is low. Instantaneous powerfailure has occurred2) Lack of power capacity...Power supply voltage hasfallen down due to inrush current at the main power-on.3)Failure of servo driver (failure of the circuit)Measure the voltage between lines of connector (L1Cand L2C) and terminal block (r and t).1)Increase the power capacity. Change the powersupply.2)Increase the power capacity.3)Replace the driver with a new one.Controlpowersupplyunder-voltageprotection11Over-voltageprotection12 Voltage between P and N of the converter portion of thecontrol power supply has exceeded the specified value1)Power supply voltage has exceeded the permissibleinput voltage. Voltage surge due to the phase-advancing capacitor or UPS (Uninterruptible PowerSupply) have occurred.2)Disconnection of the regeneration discharge resistor 3)External regeneration discharge resistor is not appro-priate and could not absorb the regeneration energy.4)Failure of servo driver (failure of the circuit)Measure the voltage between lines of connector (L1,L2 and L3). 1)Enter correct voltage. Remove a phase-advancingcapacitor.2)Measure the resistance of the external resistorconnected between terminal P and B of the driver.Replace the external resistor if the value is ∞.3)Change to the one with specified resistance andwattage. 4)Replace the driver with a new one.Main powersupplyunder-voltageprotection13 Instantaneous power failure has occurred between L1 andL3 for longer period than the preset time with SV.Pr6D(Main power-off detection time) while SV.Pr65(Undervoltage error response at main power-off) is set to1. Or the voltage between P and N of the converterportion of the main power supply has fallen below thespecified value during Servo-ON.1)Power supply voltage is low. Instantaneous powerfailure has occurred 2)Instantaneous power failure has occurred.3)Lack of power capacity...Power supply voltage hasfallen down due to inrush current at the main power-on.4)Phase lack...3-phase input driver has been operatedwith single phase input.5)Failure of servo driver (failure of the circuit)Measure the voltage between lines of connector (L1,L2 and L3). 1) Increase the power capacity. Change the power supply.Remove the causes of the shutdown of the magneticcontactor or the main power supply, then re-enter the power.2) Set up the longer time to SV.Pr6D (Main power offdetecting time). Set up each phase of the power correctly. 3)Increase the power capacity. For the capacity, referto P.32, "Driver and List of Applicable PeripheralEquipments" of Preparation.4)Connect each phase of the power supply (L1, L2 andL3) correctly. For single phase, 100V and 200Vdriver, use L1 and L3.5)Replace the driver with a new one.