4.3 Trial Operation for Servomotor without Load from Host Reference4-54 Trial Operation4.3.1 Inspecting Connection and Status of Input Signal CircuitsCheck the items in step 1 before trial operation of the servomotor under speed control and position control ref-erences from the host.Check the connection and status of input signals using the following procedure.Step Operation Reference1Connect the necessary input signal circuits to the I/O signal connector (CN1) underthe following conditions.• It must be possible to input servo ON input signal (/S-ON).• The forward run prohibited (P-OT) and reverse run prohibited (N-OT) input sig-nals must be ON (L level) (i.e., the servomotor must be able to run in forward andreverse).Settings: CN1-42 and CN1-43 must be ON (L level) or Pn50A.3 and Pn50B.0must be set to 8.Note: Return the settings to the previous ones after completing trial operation.• Make sure that there is no reference input.• If Pn002 is set to n. 1, the absolute encoder can temporarily be used as anincremental encoder, which makes it possible to perform trial operation of the ser-vomotor without Fn008 and SEN signal settingsConnect a safety device to CN8 when using the safety function.For the connecting method, refer to (1) Connecting a Safety Device.Refer to the followingconnection diagrams.3.2.4 Example of I/O Sig-nal Connections in SpeedControl3.2.5 Example of I/O Sig-nal Connections in Posi-tion Control3.2.6 Example of I/O Sig-nal Connections in TorqueControl5.9.1 Encoder Resolutions5.11 Safety Function3.2.3 Safety Function Sig-nal (CN8) Names andFunctions2 Connect the connector of the host and the I/O signal connector (CN1) together.3Turn ON the power and make sure that the panel operator display is as shown below.Check the input signal using the Un005 (input signal monitor) from the panel opera-tor. If the display is not same as shown below, correct the input signal setting.Note:• If an absolute encoder is being used, turn ON the SEN signal. The servo will notturn ON when only servo ON signal (/S-ON) is input.• When the SEN signal is checked in monitor mode, the top of the LED will lightbecause the SEN signal is high when ON.• Input signals can be also checked using wiring check function of SigmaWin+.8.4 Monitoring Input Sig-nals3.3.1 Input Signal Alloca-tionsCN1Un005 =Input signal LED display/P-CL/N-CLTop lights when inputsignal is high level.Bottom lights when inputsignal is low level./ALM-RST/P-CON/S-ONP-OTN-OTSEN
