General Creep function advice for the Mach-1 Motion software

Here are some recommended starting parameters:

• Start at P = 0.001, I = 0.
• If load (e.g. 3000gf) was not reached, increase to P = 0.01, I = 0.
• Repeat with by increasing again to P = 0.1 if load was again not reached.
• If the motor starts to overcorrect and oscillate up and down, reduce P.
• Once the (e.g. 3000gf) setpoint is reached, but the load doesn’t stay at the setpoint, you can start to increase I = 0.001, 0.01, 0.1, etc. to correct this long-term error.

In general, proportional gain (P) is how fast and aggressively the motor corrects its position. Integral gain (I) corrects any constant error over the creep time.

Here is a video with some examples: YouTube - Mach-1 User Manual - Part 2d - Function Creep

Example 1: P is too high and starts oscillating/overcorrecting

Example 2: Effect of increasing I for a 10gf setpoint

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