Series 16/18/160/180-Model C Maintenance Manual, GFZ-62755EN ...

B–62755EN/019. TROUBLESHOOTING (SERIAL INTERFACE SPINDLE)9.1LIST OF SERIALINTERFACE SPINDLEAMPLIFIER ALARMSFor troubleshooting the listed alarms, refer to 9.2 “TROUBLESHOOTING FOR EACH ALARM”.Alarm No. Meanings Description RemedyAL–01AL–02AL–03AL–04AL–05AL–07AL–08AL–09AL–10Motor overheat Detects internal motor temperature :exceeding specified temperature.Excessive speed deviationDC link section fuseblownInput fuse blown.Input power open phase.Control power supplyfuse blownExcessive speedHigh input voltageExcessive load on maincircuit sectionDetects motor speed exceeding specifiedspeed excessively.Detects that fuse F4 in DC link section isblown (models 30S and 40S).Detects blown fuse (F1 to F3), open phaseor momentary failure of power (models 30Sand 40S).Detects that control power supply fuse AF2or AF3 is blown (models 30S and 40S).Detects that motor rotation has exceeded115% of its rated speed.Detects that switch is set to 200 VAC wheninput voltage is 230 VAC or higher (models30S and 40S).Detects abnormal temperature rise of powertransistor radiator.Check load status.Cool motor, then reset alarm.Check load status.Reset alarm.Check power transistors, and so forth.Replace fuse.Replace fuse. Check open phase and powersupply regenerative circuit operation.Check for control power supply short circuit.Replace fuse.Reset alarm.Set switch to 230 VAC.Cool radiator, then reset alarm.Low input voltage Detects drop in input power supply voltage. Correct cause, then reset alarm.AL–11Overvoltage in DC linksectionDetects abnormally high direct currentpower supply voltage in power circuit section.Correct cause, then reset alarm.AL–12Overcurrent in DC linksectionDetects flow of abnormally large current indirect current section of power circuit.Correct cause, then reset alarm.AL–13CPU internal datamemory abnormalityDetects abnormality in CPU internal datamemory. This check is made only whenpower is turned on.Correct cause, then reset alarm.AL–15Spindle switch/outputswitch alarmDetects incorrect switch sequence inspindle switch/output switch operation.Check sequence.AL–16RAM abnormalityDetects abnormality in RAM for externaldata. This check is made only when poweris turned on.Correct cause, then reset alarm.AL–18Program ROM sumcheck errorDetects program ROM data error. Thischeck is made only when power is turnedon.Correct cause, then reset alarm.AL–19Excessive U phasecurrent detection circuitoffsetDetects excessive U phase current detectioncircuit offset. This check is made onlywhen power is turned on.Correct cause, then reset alarm.AL–20Excessive V phasecurrent detection circuitoffsetDetects excessive V phase current detectioncircuit offset. This check is made onlywhen power is turned on.Correct cause, then reset alarm.AL–24Serial transfer dataerrorDetects serial transfer data error (such asNC power supply turned off, etc.)Correct cause, then reset alarm.AL–25Serial data transferstoppedDetects that serial data transfer hasstopped.Correct cause, then reset alarm.AL–26Disconnection of speeddetection signal for Cscontouring controlDetects abnormality in speed detection signalfor Cs contouring control (such as unconnectedcable and adjustment error).Correct cause, then reset alarm.389