1.4 SERVOPACK Internal Block Diagrams1-131 Outline1.4.9 Three-phase 200 V, SGDV-330A11A Model1.4.10 Three-phase 200 V, SGDV-470A11A, -550A11A ModelsL1B1/ B2 B3L2L312L1CL2CUVWENCMCHARGEVaristor+–+–+15 V × 4±12 V+5 VCurrentsensorDynamicbrake circuitServomotorGate driveVoltagesensorVoltagesensorVaristorTemperaturesensorThyristordriveFan 2Fan 1Overheat protector,overcurrent protectorControlpowersupply±12 V±12 VMain circuitpower supplyControl powersupplyI/O signalCN3 CN7 CN8CN2I/OI/FCN1CN6ACN6BCN5MECHATROLINK-IIcommunicationsCPU(Position/speedcalculation, etc.)Panel displayDigital operator PersonalcomputerSignal for safety functionEncoder outputpulseAnalog monitoroutputASIC(PWM control, etc.)AnalogvoltageconverterL1B1/ B2L2L3L1CL2CUVWENCMCHARGE+15 V × 4± 12 V+5 V±12 V ±12 V±12 VCurrentsensorDynamicbrake circuitServomotorGatedriveVoltagesensorVoltagesensorVaristorVaristorTemperaturesensorThyristordriveFan 1 Fan 2 Fan 3ControlpowersupplyOverheat protector,overcurrent protectorMain circuitpower supplyControl powersupply+–+–CN3 CN7 CN8CN2I/OI/FCN1CN6ACN6BCN5MECHATROLINK-IIcommunicationsCPU(Position/speedcalculation, etc.)Panel displayDigital operator Personalcomputer Signal for safety functionEncoder outputpulseAnalog monitoroutputASIC(PWM control, etc.)AnalogvoltageconverterI/O signal
