External Units Of Measure - WAGO I/O SYSTEM 750 750-671 Manual

Fieldbus independent i/o modules
Table of Contents

Advertisement

2.1.2.10.7.1.4
Acceleration
The prescaler for velocity also figures into the definition for acceleration.
Acceleration is given as
(Steps / s
The initial factor Acc_Multiplier is determined such that the highest and
lowest required acceleration can be easily specified.
Acceleration is scaled to [Hz/s] for Acc_Multiplier = 1 and Freq_Prescaler =
1.
These values can also be specified using user-specific units that can be
defined. For this, the specified data for acceleration is multiplied by a factor
Acc_Mult prior to internal processing and then divided by a factor Acc_Div.
If the internal  external or external  internal conversion violates the
permissible value range, the error message
1515 (UNITS_ACC_INT_RESULT) or
1516 (UNITS_ACC_USER_RESULT) is issued.
2.1.2.10.7.2

External Units of Measure

Internal representation can also be converted to application-specific units
using conversion factors. Conversion is performed by multiplying by a
configurable factor (*_MULT) and then dividing by a configurable factor
(*_DIV). This way, fractions can be set with high accuracy within a wide
range. These factors are explained in greater detail in the following sections.
2.1.2.10.7.2.1
Path
The setting data for the positions are multiplied by the configuration factor
Pos_Mult prior to internal processing and then divided by the configuration
factor Pos_Div.
For example, is a step (or microstep) corresponds to travel of 0.12 mm, the
setting can be given in µm by selecting Pos_Mult = 1 and Pos_Div = 120, or
in mm by selecting Pos_Mult = 25 and Pos_Div = 3.
If the internal  external or external  internal conversion violates the
permissible value range, the error message
1511 (UNITS_POS_INT_RESULT) or 1516 (UNITS_POS_USER_RESULT)
is issued.
WAGO-I/O-SYSTEM 750
I/O Modules
2
) * Acc_Multiplier / Freq_Prescaler.
750-671 [Steppercontroller]
Configuration
• 77

Advertisement

Table of Contents
loading

Table of Contents