Parker HannifinFor CW and CCW feedback, switch both the CW and CCW signalpairs between the controller and the feedback device.For SSI feedback, switch the Drive AOUT+ and Drive AOUT−connection between the controller and the drive. (If the drivedoes not support differential outputs, switching the connectionswill not work.) Note: Some SSI encoders may have a polarityinput that can be set to change the count direction.Motion-Related Error MessagesTable 63 explains motion-related error messages you might encounter duringinstallation of the controller.Error Message DescriptionDrive I/O Not Enabled A DRIVE command was issued while Enable Drive I/Oflag, was not set for that axis.Not Valid While In Motion A DRIVE command (any) was issued while that axiswas in motion.Drive I/O Enabled An attempt was made to set or clear a flag thatcontrols one of the physical drive I/Os while theEnable Drive I/O flag was set for that axis. Thephysical drive I/Os are drive enable output, drive resetoutput, drive fault input, red LED, and green LED.Drive I/O Status Bit An attempt was made to set or clear a flag thatreflects drive status for an axis. These flags arecontrolled exclusively by firmware.Associated Slave Kill MotionRequest ActiveAn attempt was made to initiate motion on an axiswhose Kill Motion Request flag was active. Thisaffects all axes attached to a given master. Motionincludes jog, cam, and gear motion.Drive Output Enabled An attempt was made to change the state of theEnable Drive I/O flag, while the axis’ drive output wasenabled.Motion Enable Input Open An attempt was made to execute a DRIVE ON whilethe controller’s Motion Enable input was open.Resolution: Close the Motion Enable input circuit.If the Motion Enable input is not open, the ACR90x0may be damaged. See the section “Motion EnableInput” below for more information.Table 63 Motion-Related Error Messages104 ACR9000 Series Hardware Installation Guidewww.comoso.com
