Example: Change-over from terminal control to network control
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The control is executed primarily via the I/O terminals. The switch S1 serves to start and stop the motor.
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Switch S2 serves to activate the network control. In case of activated network control, the motor can only be started via the network control word. However, the condition is that switch S1 is closed.
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If the switch S1 is opened again, the motor is stopped (irrespective of the active control source).
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Connection plan
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Function
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Potentiometer R1
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Frequency setpoint selection
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Switch S1
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Run
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Switch S2
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Activate network control
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Parameter
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Name
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Setting for this example
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Enable inverter
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Constant TRUE [1]
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Run
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Digital input 1 [11]
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Reset fault
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Not connected [0]
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Activate network control
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Digital input 2 [12]
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Control selection
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Flexible I/O configuration [0]
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The status signals can be assigned to digital outputs.
 Configure digital outputs |
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①
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When changing over to another control source, the motor is first stopped with the stop method set in 0x2838:003 (P203.03).
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②
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The motor will also be stopped if the "Run" function is deactivated (irrespective of the active control source).
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③
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Commands via the network are ignored if the network control is not active.
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