Sigma-II Series SGM*H/SGDH USER'S MANUAL - Esco Drives ...

8.5 Operating Using Speed Control with Analog Reference8.5.2 Setting Input Signals(1) Speed Reference InputInput the speed reference to the SERVOPACK using the analog voltage reference to control the servomotor speedin proportion to the input voltage.TypeSignalNameConnector PinNumberNameInput V-REF CN1-5 Speed Reference InputSG CN1-6 Signal Ground for Speed Reference InputThe above inputs are used for speed control (analog voltage reference). (Pn000.1 = 0, 4, 7, 9, or A)Pn300 is used to set the speed reference input gain. Refer to 8.5.1 Setting Parameters.• Input Specifications• Input range: ±2 VDC to ±10 VDC/rated speed• Maximum allowable input voltage: ±12 VDCRated motor speedFactory setting-12-8-44 8 12Input voltage (V)Rated motor speedThe slope is set in Pn300.• Setting ExamplePn300 = 600: Rated speed at ±6 VActual examples are shown below.Speed ReferenceInputRotationDirectionMotor SpeedSGMAHServomotor-1+6 V Forward Rated motor speed 3000 min+1 VForward (1/6) rated motor speed 500 min-1-3 VReverse (1/2) rated motor speed 1500 min-1• Input Circuit Example• Always use twisted-pair wire to control noise.• Recommended variable resistor: Model 25HP-10B manufactured by Sakae Tsushin Kogyo Co.,Ltd.+12 V1.8 kΩ 1/2 W min.2 kΩV-REFSGSERVOPACKCN156Parameter Pn300 can be used to change the voltage input range.Connect V-REF and SG to the speed reference output terminals onthe host controller when using a host controller, such as a programmablecontroller, for position control.Host controllerSpeed referenceoutput terminalsFeedbackpulse inputterminalsV-REFSGPAO/PAOPBO/PBOSERVOPACKCN15633343536: represents twisted-pair wires.8(2) Proportional Control Reference (/P-CON)TypeSignalNameConnectorPin NumberSettingDescriptionInput /P-CON CN1-41 ON (low level) Operates the SERVOPACK with proportional control.OFF (high level) Operates the SERVOPACK with proportional integralcontrol./P-CON signal selects either the PI (proportional integral) or P (proportional) Speed Control Mode.Switching to P control reduces servomotor rotation and minute vibrations due to speed reference input drift.Input reference: At 0 V, the servomotor rotation due to drift will be reduced, but servomotor rigidity (holding force) dropswhen the servomotor is stopped.Note: A parameter can be used to reallocate the input connector number for the /P-CON signal. Refer to 7.3.2 Input CircuitSignal Allocation.8-39