7. Device control
Festo P.BE-CMMP-CO-SW-EN 0708NH
141
The remaining bits of the
controlword
are explained in the following. Some bits have a
different meaning, depending on the operating mode (
modes_of_operation
), that is,
whether the motor controller is speed- or torque-controlled:
Bit 4
Dependent on
modes_of_operation
:
new_set_point
In the
Profile Position Mode
:
A rising edge signals to the motor controller that
a new positioning task should be undertaken.
Also see chapter 8.3 on this.
start_homing_operation
In the
Homing Mode
:
A rising edge causes the parameterised reference
travel to start. A falling edge interrupts a running
reference travel prematurely.
enable_ip_mode
In the
Interpolated Position Mode
:
This bit must be set when the interpolation data -
records are supposed to be evaluated. The bit
ip_mode_active
is acknowledged in the
statusword
. See also chapter 8.4.
Bit 5
change_set_immediately
Only in the
Profile Position Mode
:
If this bit is not set, any positioning tasks
currently running will be worked off before any
new one is begun. If the bit is set, an ongoing
positioning is interrupted immediately and
replaced by the new positioning task. Also see
chapter 8.3 on this.
Bit 6
relative
Only in the
Profile Position Mode
:
If the bit is set, the motor controller refers the
target position (
target_position
) of the current
positioning task to the nominal position
(
position_demand_value
) of the position
controller.
Bit 7
reset_fault
In the transition from zero to one, the motor
controller tries to acknowledge the existing
faults. This is only successful if the cause of the
error has been resolved.
Summary of Contents for CMMP Series
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