11.17 Process data
This chapter describes addional funcons that provide process data for a higher-level Con-
troller.
11.17.1 Posion counter
This funcon counts the number of motor revoluons. The current counter content (actual
posion) can be output as process data value via network to implement a simple posion con-
trol in a higher-level Controller.
Precondions
•
An HTL encoder must be connected to and set at the digital inputs DI3/DI4. 4HTL
encoder ^ 496
•
As an alternave, the number of motor revoluons from the motor model can be recon-
structed. For this purpose, the motor control type "Sensorless control (SL PSM) [3]" must
be selected and set in 0x2C00 (P300.00). 4Sensorless control for synchronous motors (SL-
PSM) ^ 178
•
The
posion control must be implemented in the Controller.
Details
The signal source for the posion counter is selected in 0x2C49:001 (P711.01). The posion
counter can count forwards and backwards. The current counter content (actual posion) is
displayed in 0x2C49:003 (P711.03). Aer the maximum or minimum value has been reached,
an overow takes place.
Reset posion counter:
•
The posion counter is reset when the supply voltage is switched on.
•
The posion counter can be set manually via the "Posion counter reset" 0x2631:054
(P400.54) funcon or the NetWordIN1 0x4008:001 (P590.01) data word. For a reset via
NetWordIN1, the "Posion counter reset [54]" funcon must be assigned to a bit of the
data word. Depending on the selecon in 0x2C49:002 (P711.02), the reset can be made
either edge-controlled or status-controlled.
Parameter Name / value range / [default seng] Info
0x2631:054
(P400.54)
Funcon list: Posion counter reset
(Funcon list: PosCounter reset)
•
From version 03.00
•
For further possible sengs, see parameter
0x2631:001 (P400.01). ^ 532
Assignment of a trigger for the "Posion counter reset" funcon.
Trigger = FALSE-TRUE edge: Reset posion counter manually.
Trigger = FALSE: no acon.
Notes:
•
In 0x2C49:002 (P711.02) it can be selected whether the reset is to be
eected edge-controlled (default seng) or status-controlled.
0 Not connected
0x2C49:001
(P711.01)
Posion counter: Signal source
(Posion counter: Signal source)
•
From version 03.00
Selecon of the signal source for the posion counter.
0 Disbled Posion counter is deacvated.
1 Feedback 1 (DI3/DI4) The motor revoluons are counted that are provided by an HTL encoder
connected to the digital inputs DI3/DI4.
•
A motor revoluon always equals to the increments/revoluon set in
0x2C42:001 (P341.01) for the HTL encoder. This applies to all types of
HTL encoders that can be set in 0x2630:002 (P410.02): "HTL encoder
(AB) [1]", "Pulse train [2]" and "Pulse train/direcon [3]".
•
The counter content will be updated as well if the power secon is
switched o.
•
If an HTL encoder is used without detecng the direcon of rotaon,
it is only counted forwards.
5 Internal motor model The motor revoluons reconstructed from the internal motor model of
the sensorless control (SL PSM) are counted.
•
The counter content will not be updated if the power secon is
switched o.
•
Aer restarng the power secon, the counng of the last counter
content is connued.
Addional funcons
Process data
Posion counter
493