Operating Instruction - Frequency Inverter 230V / 400V ... - opis.cz

9.2.4 Rated Slip Correction FactorThe rotor time constant results from the inductivity of the rotor circuit and the rotorresistance. Due to the temperature-dependence of the rotor resistance and the saturationeffects of the iron, the rotor time constant is also dependent on temperatureand current. The load behavior and thus the rated slip depend on the rotor time constant.The guided commissioning determines the machine data during the parameteridentification and sets the parameter Rated slip correction factor 718 accordingly. Forthe fine adjustment or a check of the rotor time constant, proceed as follows: Loadthe machine at fifty percent of the Rated frequency 375. As a result, the voltage mustbe approximately fifty percent of the Rated voltage 370, with a maximum tolerance of5 %. If this is not the case, the correction factor must be changed accordingly. Thelarger the correction factor is set, the stronger the voltage drop when the machine isloaded. The value calculated by the rotor time constants can be read out via the actualvalue Current rotor time constant 227. The adjustment should be done at awinding temperature which is also reached during normal operation of the motor.ParameterSettingsNo. Description Min. Max. Fact. sett.718 Rated Slip Correction Factor 0.01% 300.00% 100.00%9.3 Internal valuesThe following parameters are used for the internal processing of motor data. An adjustmentis not necessary.ParameterParameterNo. Description No. Description399 Internal value 01 705 Internal value 07402 Internal value 02 706 Internal value 08508 Internal value 03 707 Internal value 09702 Internal value 04 708 Internal value 10703 Internal value 05 709 Internal value 11704 Internal value 06 745 Internal value 129.4 Speed sensor 1The frequency inverters are to be adapted to the application depending on the requirements.A part of the available Configurations 30 demand continuous measurementof the actual speed for the control functions and methods. The necessary connectionof an incremental speed sensor is done on the digital control terminals S5IND(track A) and S4IND (track B) of the frequency inverter.9.4.1 Operation mode speed sensor 1Operation mode speed sensor 1 490 can be selected according to the connected incrementalspeed sensor. A unipolar speed sensor is to be connected to the standardcontrol terminals.Operation mode0 - Off1 – Single EvaluationFunctionSpeed measurement is not active; the digital inputs areavailable for other functions.Two-channel speed sensor with recognition of directionof rotation via track signals A and B;one signal edge is evaluated per division mark.80 02/06