5 Operation5.10.1 Servo Alarm Output Signal (ALM) and Alarm Code Output Signals (ALO1, ALO2, and ALO3)5-745.10 Other Output SignalsThis section explains other output signals.Use these signals according to the application needs, e.g., for machine protection.5.10.1 Servo Alarm Output Signal (ALM) and Alarm Code Output Signals (ALO1,ALO2, and ALO3)This section describes signals that are output when the multi-winding drive unit detects errors and the resettingmethods for those errors.(1) Servo Alarm Output Signal (ALM)This signal is output when the multi-winding drive unit detects an error.(2) Alarm Code Output Signals (ALO1, ALO2, and ALO3)The ON/OFF combination of these signals specifies the type of alarm detected by the multi-winding driveunit.Use these signals as required to display the contents of the alarm at the host controller.For details, refer to 9.1.1 List of Alarms.(3) Alarm Reset MethodIf a servo alarm (ALM) occurs, use one of the following methods to reset the alarm after eliminating the causeof the alarm.The /ALM-RST signal will not always reset encoder-related alarms. If an alarm cannot be reset with /ALM-RST, cycle the control power supply.Configure an external circuit so that this alarm output turns OFF the main circuit powersupply to the SERVOPACK and converter whenever an error occurs.Type SignalNameConnectorPin Number Setting MeaningOutput ALM CN1-31, 32 ON (closed) Normal statusOFF (open) Alarm statusType Signal Name ConnectorPin Number MeaningOutputALO1 CN1-37 Alarm code outputALO2 CN1-38 Alarm code outputALO3 CN1-39 Alarm code outputSG CN1-1 Signal ground for alarm code outputBe sure to eliminate the cause of the alarm before resetting it.If the alarm is reset and operation continued without eliminating the cause of the alarm, itmay result in damage to the equipment or fire.
