3.7 Forming a Protective Sequence1253.7 Forming a Protective SequenceThis section describes how to use I/O signals from the Servopack to form a protectivesequence for safety purposes.3.7.1 Using Servo Alarm Output and Alarm Code Output 125. . . . . . . . . . . . . . . . . . .3.7.2 Using Servo ON Input Signal 128. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.7.3 Using Positioning Complete Signal 129. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.7.4 Using Speed Coincidence Output Signal 131. . . . . . . . . . . . . . . . . . . . . . . . . . . .3.7.5 Using Running Output Signal 132. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.7.6 Handling of Power Loss 134. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.7.1 Using Servo Alarm Output and Alarm Code Output1) Basic Wiring for Alarm Output SignalsPhotocoupler OutputPer output:Maximum operationvoltage: 30 VDCMaximum outputcurrent: 50 mADCOpen Collector OutputPer output:Maximum operationvoltage: 30 VDCMaximum outputcurrent: 20 mADCServopackPhotocouplerI/O powersupplyHost controllerProvide an external I/O power supply separately. There are no DC power availablefrom Servopack for output signals.3
