ParametersM-Max Series Adjustable Frequency Drive MN04020003E—October 2013 www.eaton.com 93Protective Functions, continuedPNU IDAccessRUN Value/Range DescriptionFactory Setting(P1.3)P8.10 1430 X — Analog minimum reference error, reaction time 0.50.0–10.0s (see parameter P8.1)P8.11 1473 — — (Not used) 0P8.12 714 — Underload low torque limit 60.010–50% Motor torqueThe underload protection enables faults such as a torn drive beltor the dry running of a pump to be detected without anyadditional sensorsThe reaction to a detected underload can be set at P8.5The value set here determines the lowest permissible torquelimit. This function can also be used with output frequenciesthat are above the cutoff frequency (P11.2, field weakeningpoint)Note: The value set here is reset automatically to the factorysetting (50.0%) if the parameter for the motor rated current(P7.1) is changedUnderload LimitP8.13 715 — Underload, low torque limit at zero frequency 10.05–150% Motor torqueThe value set here determines the lowest permissible torquelimit at zero frequency (range 0–5 Hz)Note: The value set here is reset automatically to the factorysetting (50.0%) if the parameter for the motor rated current(P7.1) is changedP11.2P8.13P8.125 HzM ~ If
