8. Operating modes
156
Festo P.BE-CMMP-CO-SW-EN 0708NH
Value
Meaning
-1
Unknown operating mode / change in operating mode
-11
User Position Mode
-13
User Velocity Mode
-14
User Torque Mode
1
Profile Position Mode (position controller with positioning mode)
3
Profile Velocity Mode (velocity controller with nominal value ramp)
4
Torque Profile Mode (torque regulator with nominal value ramp)
6
Homing Mode (reference travel)
7
Interpolated position mode
The operating mode can only be set via the object
modes_of_operation
. Since a change in operating mode can take
some time, one must wait until the newly selected mode appears in
the object
modes_of_operation_display
. During this time, "Invalid
operating mode" (-1) may be displayed briefly
.
8.2
Operating Mode Reference Travel (Homing Mode)
8.2.1
Overview
This chapter describes how the motor controller searches for the initial postion (also
called reference point, homing point or zero point). There are various methods to
determine this position, whereby either the limit switch at the end of the positioning range
can be used or a homing switch (zero point switch) inside the possible positioning path.
To achieve as much reproduceability as possible, the zero impulse of the used angle
encoder (resolver, incremental encoder, etc.) must be included with some methods.
Fig. 8.1: Reference travel
The user can determine the speed, acceleration and type of homing run. With the object
home_offset
, the zero position of the drive can be moved to any desired position.
Summary of Contents for CMMP Series
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