168 Parameters19.14 Speed superv est Defines an activation level for encoder supervision. See alsoparameters 19.15 Speed superv enc and 19.16 Speed fb filt t.The drive reacts according to 19.13 Speed fbk fault when:• the estimated motor speed (01.14 Motor speed est) isgreater than 19.14 AND• the filtered encoder speed* is lower than 19.15.Speed feedback supervision can be disabled by setting thisparameter to the maximum speed.0…30000 rpm Activation level for encoder supervision. 1 = 1 rpm19.15 Speed superv enc Defines an activation level for the encoder speed used inencoder supervision. See parameter 19.14 Speed superv est.0…30000 rpm Activation level for the encoder speed. 1 = 1 rpm19.16 Speed fb filt t Defines a time constant for the encoder speed filtration usedin encoder supervision. See parameter 19.14 Speed supervest.0…10000 ms Time constant for the encoder speed filtration. 1 = 1 ms2020 Limits Drive operation limits. See also section Speed controllertuning on page 61.20.01 Maximum speed Defines the allowed maximum speed. For safety reasons,after ID run this parameter is set to a 1.2 times bigger valuethan the nominal motor speed (parameter 99.09 Mot nomspeed).0 … 30000 rpm Maximum speed. 1 = 1 rpm20.02 Minimum speed Defines the allowed minimum speed. For safety reasons,after ID run this parameter is set to a 1.2 times bigger valuethan the nominal motor speed (parameter 99.09 Mot nomspeed).-30000 … 0 rpm Minimum speed. 1 = 1 rpmNo. Name/Value Description FbEq01.14**Speed19.1499.0919.15Filtered encoderspeed*, ***Filtered outcome of encoder 1/2 speed. Parameter 19.16Speed fb filt t defines the filtration co-efficient for thisspeed.**In normal operation, the filtered encoder speed is equalto signal 01.14 Motor speed est.
