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6
Positioning mode
Festo – GDCP-CMMS/D-FW-EN – 1404NH – English
115
6.4
Direct mode
6.4.1
Function: Direct mode
In the direct mode, the motor controller controls the point-to-point positioning with trapezoidal velocity
curve of the drive. The motor controller receives the position setpoint value cyclically from the control
system. The motor controller is controlled via the active fieldbus (CANopen/PROFIBUS DP/DeviceNet/
RS485). The controller-internal positioning controller calculates the positioning curve from the position
setpoint value and the direct mode parameters and transfers the position setpoint values cyclically to
the position control. The controller-internal positioning controller retains the positioning parameters for
each additional direct application if a new parameterisation process has not been executed via the
active fieldbus. The positioning parameters can be parameterised via fieldbus or the Festo Configura-
tion Tool (FCT).
Activating direct mode via fieldbus
X4
CMMS/CMMD
CANOpen
PROFIBUS DP
Fieldbus
Control section
EXT
EXT1
DeviceNet
Controller-
internal
positioning
control
Positioning
parameter
Direct mode
X5
RS485
Position
control
Fig. 6.3
Overview: Activating direct mode via fieldbus
Содержание CMMD-AS series
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