Yokogawa ALU4*D Module

Yokogawa ALU4*D New And Original Module Japan

Overview

The CS3000 software operates as a Windows 3.1 application. It cannot preempt otherapplications or functions in Windows and, therefore, cannot guarantee a responsetime to user input actions. Using other applications while controlling a drive with theCS3000 software can tie up PC resources and cause drive commands to be delayed.To prevent drive commands (run, stop, and jog) from unexpectedly executing, theCS3000 software specifies a time-out period (approximately 2 seconds) when itestablishes a link with the drive. While the link is established, the CS3000 softwaresends messages to the drive to validate the link. If a message fails to reach the drivewithin the time-out period because program execution has been delayed, the driveinvalidates the link. If the link becomes invalid, the drive does not accept drivecommands. If the drive was running, it stops, and a serial fault is generated. 

Before a drive control command is sent to the drive, the drive’s status is checked tovalidate the link. If communication between the CS3000 software and the drive havebeen interrupted and you have selected a drive command, the command is not sentand a message is displayed.

The time-out period is also used by the Parameter Monitor and Download functions,both of which could be running while the Drive Control Window is open. If the linkbecomes invalid while these functions are running, a message will be displayed in theDrive Control window before the link is re-established. When you select the Downloadcommand while the Drive Control window is open, you cannot execute drive commandcontrols until the download is complete.

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