Example: Change-over from keypad setpoint to preset 1 ... 7
The four functions "Activate preset (bit 0)" ... " Activate preset (bit 3)" enable change-over of the setpoint to a parameterisable setpoint (preset value).
Details
A preset is selected in a binary-coded fashion via the triggers assigned to the four functions "Activate preset
(Bit 0)" ... " Activate preset (Bit 3)" in compliance with the following truth table:
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Activate preset
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Selection
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Bit 3
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Bit 2
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Bit 1
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Bit 0
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Preset
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Frequency setpoint
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PID setpoint
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Torque setpoint
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FALSE
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FALSE
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FALSE
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FALSE
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No preset selected
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FALSE
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FALSE
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FALSE
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TRUE
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Preset 1
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FALSE
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FALSE
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TRUE
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FALSE
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Preset 2
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FALSE
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FALSE
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TRUE
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TRUE
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Preset 3
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FALSE
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TRUE
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FALSE
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FALSE
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Preset 4
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FALSE
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TRUE
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FALSE
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TRUE
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Preset 5
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FALSE
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TRUE
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TRUE
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FALSE
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Preset 6
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FALSE
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TRUE
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TRUE
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TRUE
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Preset 7
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TRUE
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FALSE
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FALSE
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FALSE
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Preset 8
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TRUE
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FALSE
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FALSE
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TRUE
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Preset 9
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...
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...
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...
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TRUE
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TRUE
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TRUE
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TRUE
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Preset 15
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Example for operating mode
–
The keypad is set as standard setpoint source.
–
Switch S1 starts the motor in forward direction of rotation. Switch S1 in initial position stops the motor again.
–
The switches S2 ... S4 serve to switch over to the presets 1 ... 7 (see the following table).
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Connection diagram
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Function
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Switch S1
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Run
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Switch S2 ... S4
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Preset selection:
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S2
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S3
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S4
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Off
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Off
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Off
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Keypad setpoint
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On
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Off
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Off
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Preset value 1
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Off
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On
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Off
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Preset value 2
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On
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On
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Off
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Preset value 3
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Off
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Off
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On
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Preset value 4
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On
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Off
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On
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Preset value 5
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Off
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On
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On
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Preset value 6
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On
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On
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On
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Preset value 7
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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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Reverse rotational direction
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Not connected [0]
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Activate preset (bit 0)
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Digital input 2 [12]
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Activate preset (bit 1)
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Digital input 3 [13]
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Activate preset (bit 2)
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Digital input 4 [14]
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Control selection
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Flexible I/O configuration [0]
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Stop method
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Standard ramp [1]
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Frequency control: Default setpoint source
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Keypad [1]
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Frequency setpoint presets: Preset 1
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10 Hz
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Frequency setpoint presets: Preset 2
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15 Hz
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Frequency setpoint presets: Preset 3
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20 Hz
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Frequency setpoint presets: Preset 4
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25 Hz
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Frequency setpoint presets: Preset 5
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30 Hz
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Frequency setpoint presets: Preset 6
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35 Hz
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Frequency setpoint presets: Preset 7
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40 Hz
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If the frequency presets 8 ... 15 are required as well, the digital input 5 must be additionally assigned to the "Activate preset (bit 3)" function and the terminal DI5 must be interconnected accordingly.
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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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Changeover from keypad setpoint (standard setpoint source) to presets (first, preset 1 is selected).
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②
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Changeover back to keypad setpoint since no preset is selected anymore (digital inputs 2 ... 4 = FALSE).
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