2575. Parameter DescriptionEaton Electric General Inverters DF1 Series UMXXXXXXXXE February 2020 www.eaton.com5.15.5 Tension compensation• It is only relevant to the open-loop torque mode.Parameter Name FactoryValue Setting Range Content14-33P.633Mechanical inertia compen-sation coefficient 0 0~65535 Mechanical inertia compensation coefficient14-34P.634 Material density 0kg/m3 0~60000kg/m3 Material density14-35P.635 Material width 0mm 0~60000mm Material width14-36P.636Fiction compensation coef-ficient 0.0% 0~50.0% Fiction compensation coefficientTension compensation• When the tension control adopts the open loop torque mode, during the system acceleration/deceleration, addition-al torque shall be provided to overcome the rotation inertia of the whole system. Otherwise, too small tension uponwind-up acceleration and too large tension upon deceleration, or too large tension upon roll-down acceleration andtoo small tension upon deceleration will be caused.• 14-33 is used to set the mechanical inertia compensation coefficient. It is used to compensate the rotation inertia ofthe system, including inertia of the motor, rotation system and the shaft. Such inertias are fixed and independent ofthe curling radius. This parameter can be obtained automatically by the system inertia self learning or manually setbased on the actual working situation.• 14-34 and 14-35 are relevant to the material inertia compensation. The inverter will automatically calculate the mate-rial inertia compensation value according to the parameter and the curling radius.• 14-36is used to set the friction compensation coefficient. Take wind-up as an example. Because of the frictionalresistance, the material tension reduces, which is more obvious upon small roll, and the tension will be nonlinear.This situation can be improved by setting the parameter.5.15.6 Material supply interrupt detection• It is an auxiliary function, and not in all situations can the material supply interrupt be detected effectively.Parameter Name FactoryValue Setting Range Content14-37P.637Material supply interruptauto detection function 00 Material supply interrupt auto detection is inactive.1 Material supply interrupt auto detection function 12 Material supply interrupt auto detection function 23 Material supply interrupt auto detection function 314-38P.638Auto detection minimum linespeed200.0m/min 0.1~6500.0m/min Material supply interrupt auto detection minimum line speed14-39P.639 Auto detection error range 10.0% 0.1~100.0% Material supply interrupt auto detection error range14-40P.640Auto detection judgmentdelay 2.0s 0.1~60.0s Material supply interrupt auto detection judgment delayMaterial supply interrupt detection• The group of parameters is used for the inverter to automatically detect the material supply interrupt. It is an aux-iliary function. Only when line speed is use for curling radius calculation can the inverter have the material supplyinterrupt detection basis. And not in all situations can the material supply interrupt be detected effectively. If goodresult can not be achieved after proper effort, set 14-37 to 0.