Example: Quick stop
This example illustrates the "quick stop" function. If a quick stop is activated, the motor is brought to a standstill within the deceleration time set in 0x291C (P225.00).
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The switch S1 starts the motor in forward rotating direction. The switch S1 in the initial position stops the motor again.
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The switch S2 activates the "quick stop" function.
Cancelling the quick stop causes a restart of the motor if the "Run” function is still active (switch S1 closed)!
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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 quick stop
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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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Activate quick stop
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Digital input 2 [12]
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Reset fault
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Not connected [0]
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Acceleration time 1
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3.0 s
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Deceleration time 1
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3.0 s
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Quick stop deceleration time
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1.0 s
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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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If a quick stop is activated, the motor is decelerated to the frequency setpoint 0 Hz within a short period of time. The "Quick stop active [54]" status is set as long as quick stop is activated. The "Stop active [53]" status is not set.
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②
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An active stop command is interrupted by a quick stop.
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③
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If quick stop is cancelled again before standstill is reached, stopping is continued with the stop method set in 0x2838:003 (P203.03). In the example: Stop with standard ramp.
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