Efficient Networks S120 manual EDS Encoder Data Set, Supplementary conditions and recommendations

Basic information about the drive system 12.2 Data sets

Binector inputs p0820 to p0824 are used to select a drive data set. They represent the number of the drive data set (0 to 31) in binary format (where p0824 is the most significant bit).

●p0820 BI: Drive data set selection DDS, bit 0

●p0821 BI: Drive data set selection DDS, bit 1

●p0822 BI: Drive data set selection DDS, bit 2

●p0823 BI: Drive data set selection DDS, bit 3

●p0824 BI: Drive data set selection DDS, bit 4

Supplementary conditions and recommendations

●Recommendation for the number of drive data sets for a drive

The number of drive data sets for a drive should correspond to the options for switchover. The following must, therefore, apply:

p0180 (DDS) ≥ max. (p0120 (PDS), p0130 (MDS))

●Maximum number of DDS for one drive object = 32 DDS

12.2.3EDS: Encoder Data Set

EDS: Encoder Data Set

An encoder data set contains various adjustable parameters describing the connected encoder for the purpose of configuring the drive.

●Adjustable parameters, e.g.:

–Encoder interface component number (p0141)

–Encoder component number (p0142)

–Encoder type selection (p0400)

The parameters that are grouped together in the encoder data set are identified in the parameter list by "Data Set EDS" and are assigned an index [0..n].

A separate encoder data set is required for each encoder controlled by the Control Unit. Up to 3 encoder data sets are assigned to a drive data set via parameters p0187, p0188, and p0189.

An encoder data set can only be changed over using a DDS changeover.

An encoder data set changeover without pulse inhibit (motor running under current) may only be performed on adjusted encoders (pole position ID performed or commutation angle determined for absolute encoders).

Each encoder may only be assigned to one drive and within a drive must - in each drive data set - either always be encoder 1, always encoder 2 or always encoder 3.

Using a power unit for the alternating operation of several motors would be an EDS changeover application. Contactors are changed-over so that the power unit can be connected to the different motors. Each of the motors can be equipped with an encoder or

472	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4