Actual signals and parameters20050 ENCODER MODULE Encoder connection. Visible only when a pulse encoder module (optional) isinstalled and activated with parameter 98.01.The settings will remain the same even though the application macro ischanged.50.01 PULSE NR States the number of encoder pulses per one revolution.0 … 29999 ppr Pulse number in pulses per round (ppr) 0 … 2999950.02 SPEED MEAS MODE Defines how the encoder pulses are calculated.A -- B DIR Channel A: positive edges calculated for speed. Channel B: direction. 0A --- Channel A: positive and negative edges calculated for speed. Channel B: notused.1A --- B DIR Channel A: positive and negative edges are calculated for speed. Channel B:direction.2A --- B --- All edges of the signals are calculated. 350.03 ENCODER FAULT Defines the operation of the drive if a failure is detected in communicationbetween the pulse encoder and the pulse encoder interface module, orbetween the module and the drive. Encoder supervision function activates ifeither of the following conditions is valid:-The difference between the estimated and measured speed is greater than20% of the motor nominal speed.- No pulses are received from the encoder within the defined time (seeparameter 50.04) and the drive is simultaneously at the current or torque limit.When the torque is zero or low, the shaft may not move and no pulses aredetected. This means that at low torque/current the missing-pulse-supervisionis not possible. Therefore there must be conditional torque or current limit inthe pulse supervision. Now the limit is the maximum torque/current, becausethen the shaft is expected to move at least a little bit and at least some encoderpulses are detected.WARNING The drive generates a warning indication. 0FAULT The drive trips on a fault, gives a fault indication and stops the motor. 6553550.04 ENCODER DELAY Defines the time delay for the encoder supervision function at start (Seeparameter 50.03).Note: It the delay is set to 0 ms, encoder supervision at start is disabled.0 … 50000 ms Time delay 0 … 5000050.05 ENCODER DDCS CH Defines the fibre optic channel of the control board from which the driveprogram reads the signals coming from the pulse encoder interface module.The setting is valid only if the module is connected to the drive via the DDCSlink (that is not to the option slot of the drive).CH 1 Signals via channel 1 (CH1). The pulse encoder interface module must beconnected to CH1 instead of CH2 in applications where CH2 is reserved by aMaster station (For example, a Master/Follower application). See alsoparameter 70.03.1CH 2 Signals via channel 2 (CH2). Can be used in most cases. 250.06 SPEED FB SEL Defines the speed feedback value used in control.INTERNAL Calculated speed estimate 65535ENCODER Actual speed measured with an encoder 0Index Name/Selection Description FbEq
