Eaton PowerXL DF1 Series User Manual

2595. Parameter DescriptionEaton Electric General Inverters DF1 Series UMXXXXXXXXE February 2020 www.eaton.com3. Torque memory enableWhen the replacing upper roll has contacted with the material and the replacing lower roll hasn’t been replaced, nomatter which torque control mode is adopted, the replacing lower roll inverter will be switched to the torque controlmode by the torque memory enable signal. The given Torque reference is the torque remembered by the previousinverter.4. Torque increase functionWhen the torque memory enable signal is valid, the inverter will control the torque according to the memorytorque. After the setting torque increase delay time, the output torque will increase according to the setting torqueincrease proportion to keep a large line tension at the moment for easy cutting off.At the end of roll alternation, the pre-drive signal of the replaced upper roll inverter is revoked. Then the replacedupper roll inverter operates in the setting tension control mode. The process of roll alternation is end after thereplacing lower roll inverter stops.• The pre-drive reference, torque memory signal and torque memory enable signal mentioned above in the point 3are realized all by setting the corresponding function of digital input terminals.• 14-41is use to set the pre-drive speed gain. For meeting the technological requirements and revising the line speederror, it can be adjusted on the basis of synchronous matching frequency. The adjustment formula:V2 = V1 * (1 + 14-41).When 14-41<0, the line speed of pre-drive roll will be lower than the material line speed.• In the process of auto roll alternation, when the torque memory enable signal is valid, the replacing lower roll invert-er will control the torque according to the memory torque at first. And then after the delay time set by 14-43, theoutput torque will be increased according to the torque increase proportion set by 14-42.5.15.8 Constant line speed mode• In constant line speed control mode(14-00=“4”), it is used to select the method for acquiring the target speed of con-stant line speed.Parameter Name FactoryValue Setting Range Content14-44P.656 Line speed setting source 00 Parameter 14-45 (P.657) setting1 The line speed is obtained by analog value or pulse input2 The line speed is obtained by communication mode14-45P.657 Line speed setting 0.0 m/min 0~6500.0m/min Line speed setting valueLine speed setting source• When 14-44=0, line speed is set by parameter 14-45.• The line speed is obtained by analog value or pulse input.(14-44=“1”)The maximum line speed 14-30(P.628) must be set correctly now. The maximum of analog value or pulse input cor-responds to the maximum line speed.• The line speed is obtained by communication mode.(14-44=“2”)It is set by the Modbuscommunication address H100B which setting range is0~6500.0m/min.