ARN30 Wiring diagrams – Push-pull type encoder output Differential connection Diagram assumes normal pulse order in Forward rotation: Pulse A leads. For encoders with pulse B leading, change the diagram: • Wire encoder A and B to BTAC terminals B and A, respectively. • Wire encoder A and B (if present) to BTAC terminals B and A, respectively. 1. Encoder 2. BTAC module 3. Encoder power supply A B 1) 1 1 0 0V VCC 2 2 0 SCR 1 2 3 Vin Vout GND A A GND B B GND Z Z GND 142 BTAC-02 pulse encoder interface module Single-ended connection 1. Encoder 2. BTAC module 3. Encoder power supply 1) 2 3 Vin Vout GND A A GND B B GND Z GND Z 1 0 0V VCC 2 SCR 1 BTAC-02 pulse encoder interface module 143 Wiring diagrams – Open collector (sinking) encoder output The resistor size depends on the encoder power supply Vin = VOUT: Diagram assumes normal pulse order in Forward rotation: Pulse A leads. For encoders with pulse B leading, change the diagram: • Wire encoder A and B to BTAC terminals B and A, respectively. 1. Encoder 2. BTAC module 3. Encoder power supply 4. Three identical resistors Vin= 30 V RL = 2.7…3.0 kohm, 0.5 W Vin= 24 V RL = 1.8…2.2 kohm, 0.5 W Vin= 15 V RL = 1.0…1.5 kohm, 0.5 W Vin= 5 V RL = 390…470 ohm, 0.125 W A B 1) 2 3 Vin Vout GND A A GND B B GND Z GND Z 1 0 0V VCC 2 SCR 1 2)RL 144 BTAC-02 pulse encoder interface module Wiring diagrams – Open emitter (sourcing) encoder output The resistor size depends on the encoder power supply Vin = VOUT: Diagram assumes normal pulse order in Forward rotation: Pulse A leads. For encoders with pulse B leading, change the diagram: • Wire encoder A and B to BTAC terminals B and A, respectively. 1. Encoder 2. BTAC module 3. Encoder power supply 4. Three identical resistors Vin= 30 V RL = 2.7…3.0 kohm, 0.5 W Vin= 24 V RL = 1.8…2.2 kohm, 0.5 W Vin= 15 V RL = 1.0…1.5 kohm, 0.5 W Vin= 5 V RL = 390…470 ohm, 0.125 W A B 1) 2 3 Vin Vout GND A A GND B B GND Z GND Z 1 0 0V VCC 2 SCR 1 2)RL BTAC-02 pulse encoder interface module 145 Apply power 1. Turn on the input power to the drive. 2. Continue with Start-up on page 145. Start-up To configure the operation of the BTAC module: 1. Power up the drive. 2. Set group 90 Feedback selection, 91 Encoder adapter settings and 92 Encoder configuration parameters described on pages 145…147. Feedback selection Use these parameters to select feedback or display feedback from the encoder. No. Name/Value Description Def/FbEq16/32 90 Feedback selection 90.01 Motor speed for control Displays the estimated or measured motor speed that is used for motor control, ie. final motor speed feedback selected by parameter 90.41 Motor feedback selection and filtered by 90.42 Motor speed filter time. This parameter is read-only. - -32768…32767 Motor speed used for control. 1=1 rpm/ 100=1 rpm 90.02 Motor position Displays the motor position (within one revolution) received from the source selected by parameter 90.41 Motor feedback selection. 0 … 1 rev Motor position. 32767=1 rev/ 100000000=1 rev 90.10 Enc1 speed Displays encoder 1 speed in rpm. This parameter is read-only. - -32768…32767 Encoder 1 speed. 1=1 rpm/ 100=1 rpm 90.11 Enc1 position Displays the actual position of encoder 1 within one revolution. This parameter is read-only. - 0 … 1 rev Encoder 1 position within one revolution. 32767=1 rev/ 100000000=1 rev 90.13 Enc1 revol extension Displays the revolution counter extension. The counter is incremented when encoder position wraps around in the positive direction, and decremented in the negative direction. The parameter is effective only if the position is absolute.The parameter value is updated for both singleturn and multiturn encoders. This parameter is read-only. na/1=1 146 BTAC-02 pulse encoder interface module Encoder adapter settings These parameters display the configuration of the encoder interface modules. 90.41 Motor feedback sel Selects the source of motor speed and motor position used as feedbacks for speed control and motor model. estimate estimate A calculated speed estimate 0 Encoder 1 Actual speed measured by encoder 1. 1 90.42 Motor speed filt time Defines a filter time for motor speed feedback used for control. 3 ms 0 … 10000 ms Motor speed filter time. 1=1 ms/1=1 ms 90.45 Motor feedback fault Selects how the drive reacts to loss of measured motor feedback. Fault Fault Drive trips on a 7301 Motor speed feedback fault. 0 Warning Drive generates a A7B0 Motor speed feedback warning and continues operation using estimated feedbacks. Note: Before using this setting, test the stability of the speed control loop with estimated feedback by running the drive on estimated feedback (see 90.41 Motor feedback sel). 1 90.46 Force open loop Defines the speed feedback used for motor control. No No The motor model uses the feedback selected by 90.41 Motor feedback sel. 0 Yes The motor model uses the calculated speed estimate (regardless of the setting of 90.41 Motor feedback sel, which in this case only selects the source of feedback for the speed controller). 1 90.47 Enable motor encoder drift detection Enables motor encoder drift detection Yes No Does not generate an error if encoder drift is detected. 0 Yes Generates fault 7301 Motor speed feedback if encoder drift is detected. 1 No. Name/Value Description Def/FbEq16/32 91 Enc adapter settings 91.10 Enc par refresh Validates any changed encoder interface module parameters. This is needed for any parameter changes in groups 90…92 to take effect. After refreshing, the value reverts automatically to Done. Note: The parameter cannot be changed while the drive is running. Done Done Refreshing done. 0 Configure Refreshing. 1 No. Name/Value Description Def/FbEq16/32 BTAC-02 pulse encoder |
