Example: Start forward/start reverse/stop (edge-controlled)
The "Run" function automatically becomes a "start enable" if the functions "Start forward (CW)"/"Start reverse (CCW)" are connected to triggers.
This example shows an edge-controlled start/stop via three buttons:
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In the non-operating state of button S1 (normally-closed contact), there is already a start enable.
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Button S2 starts the motor in forward rotating direction.
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Button S3 starts the motor in the reverse rotating direction.
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Button S1 (normally-closed contact) stops the motor by (momentary) cancellation of the start enable. The inverter then waits for the next start command via button S2/S3.
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Connection diagram
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Function
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Potentiometer R1
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Frequency setpoint selection
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Button S1
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Stop
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Button S2
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Start forward (CW)
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Button S3
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Start reverse (CCW)
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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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Start forward (CW)
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Digital input 2 [12]
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Start reverse (CCW)
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Digital input 3 [13]
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Reverse rotational direction
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Not connected [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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The "Run" function serves as start enable for the functions "Start forward (CW)" and "Start reverse (CCW)".
Without start enable, the motor cannot be started.
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②
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If the start enable is cancelled, the motor is stopped with the stop method set in 0x2838:003 (P203.03). In the example: Stop with standard ramp.
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③
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If, at start enable, "Start forward (CW)" and "Start reverse (CCW)" are already set to TRUE, the motor remains stopped and the inverter waits for the next valid start edge.
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