B&R ACOPOSinverter P84, User Manual

Page: 157 / 405

Programming guidelines
ACOPOSinverter P84 User's Manual 2.10 157
2.8.8.3 Selection of the encoder
Follow the recommendations in the catalog and in the installation manual.
Code Name/Description Setting range Factory settings
EnS [Encoder type] [AABB] (AAbb)
The parameter is accessible if an incremental encoder card is present
1)
.
To be configured according to the cards and encoder type used.
AA [AABB] (AAbb) : For the signals A, A-, B, B-.
Ab [AB] (Ab) : For the signals A, B
A [A] (A) : For signal A. Value is not accessible if [Encoder active] (EnU) = [Control] (rEG)
PGI [Number of pulses] 100 to 5000 1024
Number of pulses per revolution of the encoder.
The parameter is accessible if an incremental encoder card is present
1)
.
1) The access to the encoder-specific parameter is only possible if the encoder card is present. The available selection depends on the type of encoder card
used. The configuration of the encoder can also be accessed via the
[INPUTS/ OUTPUTS]
(I/O) menu.
2.8.8.4 Encoder testing
This process applies to all types of encoders.
1. Set [Motor control type] (Ctt) to another value than [FVC] (FUC) , even if this is the required configuration.
For example, use [SVC U] (UUC) for an induction motor.
2. Configure the motor parameters according to the technical data on the nameplate.
° Induction motor ( see "Drive parameters (bFr - nSP)" on page 151 ):
[Rated motor power] (nPr) , [Rated motor volt.] (UnS) , [Rated mot. current] (nCr) ,
[Rated motor frequency] (FrS) , [Rated motor speed] (nSP) .
3. Set [Encoder active] (EnU) = [No] (nO) .
4. Perform an autotuning.
5. For an incremental encoder, set
[Encoder type] (EnS) and [Number of pulses] (PGI) ( see "Selection of the
encoder" on page 157 ) according to the encoder used.
6. Set [Encoder active] (EnU) = [Yes] YES) .
7. Check that the motor is turning securely.
8. Ensure a stable motor speed ≈15% of the rated speed for at least 3 seconds. Use the menu
[MONITOR]
(SUP-) , to monitor the behavior.
9. In the event of a triggering of [Encoder fault] (EnF) , [Encoder] (EnC) switches to [No] (nO) .
° Check the parameter settings (see 1 to 4 above).
°
Check the correct mechanical and electrical operation of the encoder as well as the supply and
the connection.
° Change the rotation direction of the motor (parameter [Phase rotation] (PHr) ) or the signals from
the encoder.
10.Repeat this procedure again from step 5 until [Encoder] (EnC) switches to [done] (dOnE) .
11.Reconfigure [motor control type] (Ctt) , if this should correspond with [FVC] (FUC) .
Note:
If the fault [Invalid config] (CFI) is triggered, set [Encoder] (EnC) = [No] (nO) .