Lab.gruppen PLM 20K44 Operation Manual page 33

7.8.3. Rotary Encoder
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The rotary encoder is used to adjust parameters in conjunction with the selection made via the dynamic function
buttons and LCD menus. The ring around the rotary encoder illuminates when a selected parameter is available for
adjustment.
Turn the encoder clockwise to increase the selected parameter, or counter-clockwise to decrease the value.
Parameters with only two states (e.g. ON, OFF) are toggled by turning clockwise or counter-clockwise. Some
parameters enable simultaneous adjustment of a combination of input and output channels.
To select which channels are adjusted:
1. Press the associated soft button/s to select the parameter/s for editing. A selected parameter is indicated by
inverse text and background color.
2. Use the rotary encoder to change the value.
It is possible to select multiple parameters for simultaneous editing even if the values are different on each channel.
Turning the rotary encoder will adjust each parameter by the same increment. When in Meter Mode, the rotary
encoder allows the user to change between the available meter views.
Note: Some menus permit parameters to be adjusted across multiple channels simultaneously by
default.
7.8.4. Dynamic Function Buttons
The buttons surrounding the display are unlabeled because their functions change according to the currently
selected menu or display.
In Meter Mode with MUTE ENABLE activated, these dynamic function buttons are used to mute or unmute the
Module Inputs and power output channels.
In Menu Mode these buttons are used to navigate the menu structure. This is indicated by a thin line on the display
closest to the button used. During menu navigation, the color of the embedded LEDs continues to indicate the
mute status, clips, or faults and warnings relevant to the associated input or output channel on the PLM+.
Note: Each button contains a tricolor LED which conveys fault and warning indications in addition to
the mute status. The LED color does not necessarily correspond to the currently selected function.
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7. Front Panel Interface
PLM+ SERIES Operation Manual rev 1.0.0
33