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FM-3 Programming Module Reference Manual
Time Constant
Position Error Integral is a control term, which can be used to compensate for the continuous torque required to hold a vertical load against gravity. It is also useful in low speed applications, which have high friction.
The user configures this control term using the “Position Error Integral Time Constant” parameter. This parameter determines how quickly the drive will correct for
Min Time Constant = 1000/Response
For example, with “Response” set to 50, the minimum time constant value is 1000/50 = 20 msec.
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