Datalogic AMT58 Series, Manual

Page: 248 / 435

ENCODER PARAMETERS
68
AMT58...PN
Total measuring range
[Index 524]
This parameter sets the number of distinguishable steps over the total measuring range.
Allowed values are less than or equal to the total hardware resolution value (physical
multiturn resolution = number of physical counts per revo number of physical
revolutions).
We recommend the Number of revolutions to be set to a power of 2.
The set Number of revolutions results from the following calculation:
Setting the Number of revolutions to a value which is a power of 2 is meant to avoid
problems when using the device in endless operations requiring the physical zero to be
overstepped. If you set the Number of revolutions which is not a power of 2, a so-called
“Red Zone” is generated before the physical zero. For more detailed information refer to
"
Red Zone" on page 70
).
Default = 134217728 (min. = 1, max. = 134,217,728)
Example
The AMT58...13X14-PN encoder has a singleturn resolution of 13 bits (8,192 cpr) and a
multiturn resolution of 14 bits (16,384 revolutions). The permissible value for the Mea -
suring units / Revolution will be between 2
0
and 2
13
(2
13
= 8,192) while the permissible
value for the Total measuring range will be between 2
0
and 2
27
(2
27
= 2
13
* 2
14
=
134,217,728).
Number of revolutions =
Total measuring range
Measuring units / Revolution
NOTE
There is no functionality of this parameter if the Scaling function control
parameter is disabled.
NOTE
When you change the value next to this parameter, then you are required to
enter a new preset.