2.4 Conducting a Test Run392.4.2 Step 1: Conducting a Test Run for Motor without LoadCheck that the motor is wired correctly.If the motor fails to rotate properly during a servo drive test run, the cause most frequently liesin incorrect wiring.Conduct a test run for the motor without load according to the procedure described below.For customers who use a servomotor with brake, refer to Section 2.4.4 Supplemental In-formation on Test Run before starting a test run.Operate the motor witha Digital Operator.Check wiring.Do not connect to the machine.(1) Secure the servomotor.Secure the servomotor to mounting holes toprevent it from moving during operation. Alter-natively, install the servomotor on the machineand disconnect couplings and belts.(2) Disconnect connector 1CN, then check themotor wiring in the power supply circuit.I/O signals (1CN) are not to be used so leaveconnector 1CN disconnected.Note: When absolute encoder is used, connectthe battery. Also, initialize the absoluteencoder.See 3.8.5 Using an Absolute Encoderfor details.(3) Short the alarm signal circuit.Because connector 1CN is disconnected, thealarm signal prevents the power supply circuitfrom being turned ON. Therefore, temporarilyshort the alarm signal circuit.2Secure servomotor to mounting holes.Do not connectanything to themotor shaft(no-loadstatus).Disconnectconnector1CNPower supply0V +24V Force this relay ON.Short thiscircuit. 1CN disconnected
