Weighing the benefits of creep speed(.PDF Download)

    March 31, 2014
    Large positional errors can result when a programmable logic controller (PLC) selects the deceleration point. The error is caused by the scan-time delay in the digital controller, and it is directly proportional to the speed at the instant that the deceleration decision is made. To reduce this error, many open-loop motion controllers decelerate the system to a creep speed...

    Large positional errors can result when a programmable logic controller (PLC) selects the deceleration point. The error is caused by the scan-time delay in the digital controller, and it is directly proportional to the speed at the instant that the deceleration decision is made. To reduce this error, many open-loop motion controllers decelerate the system to a creep speed...

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