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MPH-02, MPB-02, MPD-02
Actual Position Value Offset
Pertinent Parameters
Encoder Types Supported
Procedures for Establishing the
Position Data Reference
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
This is configured via parameters and realized with the commands for
establishing the position data reference.
The difference of the actual position value before and after establishing
the position data reference is displayed, related to the motor encoder or
external encoder, in one parameter respectively.
See also the following sections:
• "Establishing Position Data Reference for Relative Measuring
Systems"
• "Establishing Position Data Reference for Absolute Measuring
Systems"
• S-0-0115, Position feedback 2 type
• S-0-0175, Offset parameter 1
• S-0-0176, Offset parameter 2
• S-0-0277, Position feedback 1 type
• S-0-0403, Position feedback value status
• P-0-0074, Encoder type 1 (motor encoder)
• P-0-0075, Encoder type 2 (optional encoder)
Functional Description
IndraDrive controllers can evaluate a multitude of standard position
encoders. The encoder types that can be evaluated are listed in the
descriptions of the following parameters (see documentation "Parameter
Description IndraDrive):
• P-0-0074, Encoder type 1 (motor encoder)
• P-0-0075, Encoder type 2 (optional encoder)
The kind of encoder and the travel range that has been set (S-0-0278)
determine whether absolute evaluation is possible for this encoder. This is
displayed by the respective bits of the following parameters:
• S-0-0277, Position feedback 1 type (motor encoder)
• S-0-0115, Position feedback 2 type (external encoder)
Depending on relative or absolute evaluation of the motor encoder or
external encoder, the controller makes available different procedures for
establishing the position data reference:
• "set absolute measuring" for encoders to be evaluated in absolute
form
• "drive-controlled homing procedure" for relative encoders
Note:
After having successfully established the position data
reference, the actual position value of the respective encoder
refers to the axis. The encoder then is "in reference" or has
been "homed".
See also "Absolute Measuring Systems" and "Relative Measuring
Systems" in chapter "Motor, Mechanical Axis System, Measuring
Systems".
8-5
Drive Functions
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