This parameter is concerns absolute encoders only. It is used to make the real position of the moving part coincide with the position provided by the encoder (shift from zero).
This parameter can only be modified if direct offset has been chosen in the configuration.
The encoder offset is defined as follows:
Encoder offset = value to be added (expressed in number of encoder points) to the measurement provided by the absolute encoder, in order to obtain the real measurement.
Limits are as follows: -2 n-1 + 1 to 2 n-1 - 1, where n= number of absolute encoder data bits.
NOTE: The encoder offset parameter is adjusted in measurement mode (DRV_OFF).
If the absolute encoder has been declared in assisted offset, this parameter is not taken into account. The assisted offset procedure is used to avoid having to make any calculations. However, after reading READ_PARAM, SAVE_PARAM or saving parameters, the encoder offset value reflects the offset used by the channel.
If the absolute encoder shows a measurement of 100 mm for position 0 and the resolution is 2 microms, the offset value is:
-100000 / 2 = -50000 encoder points.
