IDN 79 (S-0-0079) Rotational Position Resolution

The rotational position resolution for all position data in the drive. The LSB weight of rotational position data is determined by the following equation:

If the rotational position resolution is different from 65536 or 1048576, it is necessary that the modulo format is switched on in IDN 76 . Only the values 65536 and 1048576 could save in the non-volatile memory.

If position control with external feedback is selected, the drive will calculate the rotational position resolution with the resolution of the rotational feedback 2 ( IDN 117 ). This value for IDN 79 is then write protected and could only read by the master. By using parameter 121 and 122 the minimum changes to min: 100 x ( IDN 122 / IDN 121 )and the maximum to max: 100 000 000 x ( IDN 122 / IDN 121 )

IDN 79 (S-0-0079) Rotational Position Resolution 1:

Data Length:

4 bytes

Non-Volatile:

Yes

Data Type:

Unsigned decimal

Write Access:

CP2

Minimum:

100

Run-Up Check:

 

Maximum:

100 000 000

Cyclic Transfer:

 

Default:

1048576

Serial Equiv:

PRBASE

Units:

Counts / Revolution

Version:

5.04 

IDN Type:

PS

ADS Index Group (hex.):

0x004F