Siemens DC Governor 6RA70 Quick Setup Method DC governor sometimes need to restore parameters to factory settings or reset parameters in use. What parameters need to be set? The following will briefly describe the 6RA70 rapid setting method: need to set: armature current, excitation current, armature voltage, excitation voltage, feedback mode, given source, starting source, automatic tuning optimization, generally these parameters are sufficient The DC governor is an all-digital rectifier with three-phase input and armature currents from 15a to 2200a. Compact rectifiers can be used in parallel to provide currents up to 12000a and the excitation circuit can supply up to 85a (this current Depends on the armature rated current) (1) 6ra70 governor parameter settings and self-tuning debugging settings P051=21; Restore to factory settings (use this setting if you are not sure which parameters have been modified) P051=40; Allow modification of parameters P052=3 ; Show all parameters P100 = armature rated current (this can be set by referring to the motor nameplate during commissioning) P101=Armast rated voltage (this can be set by referring to the motor nameplate during commissioning) P102=excitation rated current (this can be set by referring to the motor nameplate during commissioning) P104,p105,p106,p107,p108,p109,p114,default P082=1, the excitation circuit is closed together with the main circuit contactor P083=3, the speed feedback signal is provided by emf, 1=xt104 xt103 is provided (speed feedback), 2= encoder feedback. If p083=2 is selected, set the following parameters P140=1, encoder type 1 P141=1024, encoder pulse number P142=1, encoder output P143=3000, setting the maximum operating speed of the motor If p083=1 is selected, please set the following parameters P741 = speed feedback generator voltage feedback. Algorithm: For example, the nameplate 110v 2000 speed motor, motor rated speed 1500, then set the p741 voltage is 83v. Optimized operation: (here we only do current loop optimization) P051=25 , pre-control of armature and excitation and optimal operation of current regulator start the governor, 6ra70 will automatically run, optimizing current loop and excitation parameters.
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