1 Outline1.3.3 Control Specifications for Different Reference Type1-61.3.3 Control Specifications for Different Reference TypeThe following list shows the control specifications for SERVOPACKs with different reference types.(1) Analog Voltage Reference (Model: SGDV-ES1A)(2) Pulse Train Reference (Model: SGDV-EP1A)Control Method SpecificationsSpeed ControlPerformance Soft Start Time Setting 0 to 10 s (Can be set individually for accelerationand deceleration.)Input SignalsReference Voltage• Max. input voltage: ±12 V(forward speed reference with positive refer-ence)• Factory setting: 6 VDC at rated speedInput gain setting can be varied.Input Impedance Approx. 14 kΩCircuit Time Constant 30 μsInternal SetSpeed ControlRotation Direction Selection With P control signalSpeed SelectionWith forward/reverse external torque limit signal(speed 1 to 3 selection).Servomotor stops or another control method isused when both are OFF.Torque Control Input SignalsReference Voltage• Max. input voltage: ±12 V(forward torque reference with positive refer-ence)• Factory setting: 3 VDC at rated torqueInput gain setting can be varied.Input Impedance Approx. 14 kΩCircuit Time Constant 16 μsControl Method SpecificationsPosition ControlPerformanceFeedforward Compensation 0% to 100%Positioning CompletedWidth Setting 0 to 1073741824 reference unitsInput SignalsReferencePulseTypeSelect one of them:Sign + pulse train, CW + CCW pulse train, ortwo-phase pulse train with 90° phase differentialForm For line driver, open collectorMax. InputPulseFrequencyLine driverSign + pulse train, CW + CCW pulse train: 4MppsTwo-phase pulse train with 90° phase differen-tial: 1 MppsOpen CollectorSign + pulse train, CW + CCW pulse train: 200kppsTwo-phase pulse train with 90° phase differen-tial: 200 kppsReferencePulse InputMultiplicationSwitching1 to 100 timesClear Signal Position error clearFor line driver, open collector
