9.4.2.3 MC3 Constant Torque Macro
The constant torque macro sets the V/Hz curve (MC3-16) to Linear for constant torque loads along
with an overload setting (MC3-36) of 150% / 1 min. It also sets Load Duty parameter MC3-01 (PRT-
04) to Heavy Load. Note that this will change motor group (MOT) parameters to one setting lower than
the inverter rating. Ex: if a 100 HP inverter is used, MOT-01, Motor Capacity will be set to 75 HP. An
Auto Torque Boost (MC3-07) is also set. All other parameters are at default settings. The shaded
settings are different from the standard inverter parameter settings.
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