
MPH-02, MPB-02, MPD-02 Operating Modes 7-3
DOK-INDRV*-MP*-02VRS**-FK01-EN-P
With the following exceptional circumstances, the desired operating mode
is not carried out in spite of the operating mode having been correctly
selected:
• Drive error is present
→ The corresponding error reaction is carried out.
• Fatal warning was triggered
→ The corresponding reaction is carried out.
• A "drive command" (e.g. homing procedure, set absolute measuring
etc.) is executed
→ The command started is carried out.
• Drive Halt
→ This drive function is carried out.
See also "Basic Functions of Master Communication: Device Control" in
chapter "Master Communication"
In order to achieve a quick and smooth change of operating mode in
running operation, it is possible to make a "drive-controlled change of
operating mode". Drive-internally this procedure ensures that when the
operating mode is changed the transition is carried out in a synchronized
way, even if the command value changes abruptly.
Command Value Acceptance and Acknowledgment
Each preset command value is accepted immediately when the
respective command value parameter (e.g. S-0-0036, S-0-0080,
S-0-0258, …) is written in the case of the operating modes:
• torque/force control
• velocity control
• position control with cyclic command value input
• drive-internal interpolation
• synchronization modes:
• velocity synchronization with real/virtual master axis
• phase synchronization with real/virtual master axis
• electronic cam shaft with real/virtual master axis
In the positioning modes (drive-controlled positioning, positioning block
mode), however, the command value (target position, velocity, positioning
block, ...) is only accepted when the master explicitly requests this by a
"command value acceptance".
The command value acceptance is carried out in a different way,
according to the positioning mode or profile type:
• operating mode "drive-controlled positioning"
acceptance of preset command value (position, velocity) by toggling
bit 0 in S-0-0346, Positioning control word
→ toggle mechanism
• operating mode "positioning block mode"
acceptance of the positioning block selected via P-0-4026,
Positioning block selection by a 0-1 edge of bit 0 in P-0-4060,
Positioning block control word, when the parallel interface or, in the
case of field buses, the I/O mode is used as master communication
→ edge control
Special Cases
Drive-Controlled Change of
Operating Mode
Command Value Acceptance
Kommentare zu diesen Handbüchern