Festo EMCA-EC-67 CO Series, Description

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G Terms and abbreviations
404 Festo – EMCA-EC-C-HP-EN – 2017-11e – English
Term/abbreviation Significance
Integrated Drive Includes power electronics, regulator, positioning controller, motor
and motor encoder (optional). Evaluates sensor signals and calcu­
lates movements and forces.
Jog mode Manual travel in a positive or negative direction.
Function for setting positions by approaching the target position,
e.g. when teaching position sets (Teach mode).
Load voltage, logic voltage The load voltage supplies the power electronics of the EMCA and
thereby the motor. The logic voltage supplies the evaluation and
control logic of the EMCA.
Logic 1 Means that there is a 24 V signal present at the input or output (pos­
itive logic, corresponds to HIGH).
Operating mode Type of control or internal operating mode of the EMCA.
– Type of control: record selection mode, direct operation
– Operating mode of the controller: position profile mode,
profile torque mode, profile velocity mode
– Predefined sequences: homing mode...
Positioning mode
(Profile Position mode)
Operating mode for executing a position set or a direct positioning
task with position control (closed loop position control).
Project zero point (PZ)
(Project Zero point)
Point of reference for all positions in positioning tasks. The project
zero point PZ forms the basis for all absolute position specifications
(e.g. in the position set table or with direct control via control inter­
face). The PZ is defined by an adjustable distance (offset) from the
axis zero point.
Record Travel command defined in the record table, comprising target posi­
tion, positioning mode, travel speed and acceleration.
Reference point (REF) Point of reference for the incremental measuring system. The refer­
ence point defines a known orientation or position within the travel
distance of the drive.
Reference switch External sensor used for ascertaining the reference position and
connected directly to the EMCA.
Referencing mode
(Homing mode)
Definition of the measuring reference system of the axis
Software end position Programmable stroke limit (point of reference = axis zero point)
– Software end position, positive/negative:
max. limit position of the stroke in positive/negative direction;
must not be exceeded during positioning.