Sigma II User’s Manual Chapter 4: Trial Operation4 - 124.3 Minimum Parameters and Input SignalsThis section of this manual describes the minimum parameters and input signals requiredfor trial operation.4.3.1 ParametersSee 7.1.6 Operation in Parameter Setting Mode for more details on settingparameters.Turn OFF power once after changing any parameter except Pn300. The change willnot be valid until power is restored.Basic ParametersSpeed ControlPosition ControlChanging Servomotor Rotation DirectionThe wiring may be incorrect if the specified direction differs from the actualdirection of rotation. Recheck the wiring and correct if necessary. Use the followingparameter to reverse the direction of rotation.4.3.2 Input SignalsInput signal selection settings through parameters can be used to eliminate the needfor external short circuits.Pn000.1 Function Selection Basic Switches: Control Mode Selection See 5.3.5Pn300 Speed Reference See 5.2.1Pn201 Using the Encoder Signal Output See 5.2.3Pn200.0 Position Reference See 5.2.2Pn202 Using the Electronic Gear Function (Numerator) See 5.2.5Pn203 Using the Electronic Gear Function (Denominator) See 5.2.5Pn000.0 Switching Servomotor Rotation Direction See 5.1.1Signal Name PinNumber Description/S-ON Servo ON CN1-40 See 5.5.2 for more details on turning ON and OFF the servomotor.P-OT Forward run pro-hibited CN1-42See 5.1.2 for more details on the overtravel limit switch.N-OT Reverse run pro-hibited CN1-43