You are here: Glossary > Open-Loop Low-Frequency Gain

Open-Loop Low-Frequency Gain

The open-loop low-end gain refers to the magnitude of the open-loop response at frequencies that are much lower than the first crossover frequency. When the open-loop response has a larger magnitude at low frequencies, this is an indication that a smaller position error input is necessary to get a specified position feedback output. If you increase the values of the ServoLoopGainKiv Parameter and the ServoLoopGainKip Parameter, this can increase the low-end gain very much. It can also increase the perception of stiffness of the axis in the direction of motion when the axis is under closed-loop control.