PLM Series Operation Manual rev 1.1.3
6. Quick Guide Overview
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6. Quick Guide Overview
PLM SERIES
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Figure 6.1: PLM front panel layout
6.1 Front Panel Overview
The front panel controls, clustered around a 2.5” daylight readable LCD, perform most control and
monitoring functions via a simple menu system. The two switch clusters on either side of the LCD include
dedicated function keys as well as eight “soft keys” (functions vary according to current display page) and a
rotary data encoder.
Handles
Two sturdy metal handles are fitted to the front panel. The handles always should be used when carrying
the PLM, and when fitting it in or removing it from a rack. Ensure that any door or removable rack front
cover has sufficient depth to clear the handles.
Dust filters
Two dust filters are fitted behind metal covers. To remove the covers, loosen the thumbscrews located
behind the handles. Once detached, the dust filter elements can be removed for cleaning. See section 11.2
for information on cleaning the dust filters.
Display
The display illuminates when the PLM is active. Many of the control and metering functions found on
conventional amplifiers are replaced on the PLM by a set of on-screen pages which, together with the soft
keys and rotary encoder, allow monitoring and control of operating parameters. Multicolor LEDs embedded
in the soft keys display fault and warning status indications.
The layout of various display “pages” is standardized to a high degree for ease of use. In general, each page
is divided into two columns of four blocks, with the left-hand column referring to inputs and the right-hand
to outputs. Each block has four rows of data, which can be either alphanumeric or in the form of a bargraph
meter.
The device never should be operated without the
dust filters in place.
