Glossary-1
FM 351 Positioning Function Module
EWA 4NEB 720 6001-02
Glossary
An absolute encoder determines the displacement traveled by reading off a
numerical value.
The absolute encoder adjustment provides a fixed relationship between the
coordinate system and the encoder.
The following values are required for this:
Absolute encoder adjustment: This is a value from the value range of the
absolute encoder.
Reference-point coordinate: This is a value from the coordinate system.
The drive approaches an absolute target with the absolute incremental operat-
ing mode.
The axis consists of toothed belt, spindle, toothed rack (pinion), hydraulic
cylinder, gear unit and coupling system.
During controlled positioning the axis traverses without actual-value feed-
back to the programmed target position in response to a specification of a
target position.
The creep speed is a relatively low speed. The purpose of the creep speed or
creep mode is to achieve accurate positioning.
This single command deletes the remaining residual displacement after a job
is aborted.
The displacement per encoder revolution gives the distance moved by the
axis for each encoder revolution.
The drive consists of the power controller and the motor which drives the
axis.
Absolute Encoder
Absolute Encoder
Adjustment
Absolute
Incremental Mode
Axis
Controlled
Positioning
Creep Speed/
Creep Mode
Delete Residual
Distance
Displacement per
Encoder
Revolution
Drive
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