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

8 Operation8.1.2 Trial Operation for Servomotor without Load from Host ReferenceINFO• When Position Control is configured at the HostAnalog speedreferenceHostSERVOPACKMPosition controlSpeed controlTrial operation forservomotor without loadWhen the SERVOPACK conducts speed control and position control is conducted at the host controller, perform the operationsbelow, following the operations in (2) Operating Procedure in Speed Control Mode (Pn000 = n.0) on the previouspage.Step Description Check Method and Remarks9 Check the input signal circuit again, and check thatthe speed reference input (voltage between the V-REF and SG) is 0 V.Refer to the above figure for input signal circuit.10 Turn ON the servo ON (/S-ON) input signal. If the servomotor rotates at extremely slow speed,refer to 8.5.3 Adjusting Offset, and use the referencevoltage offset to keep the servomotor from moving.11 Send the command for the number of motor rotationeasy to check (for example, one motor revolution)from the host controller in advance, and check thesent number of rotation and actual number of rotationby visual inspection and the Un003 (rotationangle 1)[puls e].12 If the sent number of rotation and actual number ofrotation in step 11 are not equal, correctly set thePn201 (PG divided ratio) outputting the encoderpulse from the SERVOPACK.13 When the speed reference input is set to 0 V andservo OFF status enters, the trial operation for positioncontrol with the host controller is completed.Refer to 7.1.3 Basic Mode Selection and Operation forhow it is displayed.Un003 (rotation angle 1)[pulse]: The number of pulsesfrom the zero point.Refer to 8.5.7 Encoder Signal Output for how to set.PG divider (Pn201 [P/Rev]): The number of encoderpulses per revolution−8-12