Lab.gruppen PLM 20K44 Operation Manual page 27

NOTE: Manual configuration of LoadPilot is implemented in CAFÉ versions 1.1.0. and later. For detailed
information on manual configuration of LoadPilot, please refer to the integrated guide in the software
program and to the CAFÉ Coach videos posted on the Lab.gruppen web site and on the Lab.gruppen
channel on YouTube.
5.5.4. Indication
The LoadPilot feature constantly monitors the impedances at the two given pilot tone frequencies and compares to
the measured thresholds. The following faults and warnings can be triggered.
• Speaker shorted warning – Both tones below lower threshold. Corresponds to a distant short circuit that can
either be in the cabling or in the speaker.
• Speaker damaged warning – One of the tones is below or above thresholds. Corresponds to an unexpected
impedance deviation of one of the tones, most likely a damage to the speaker.
• Under speaker count warning – Both tones above upper threshold. Corresponds to an impedance increase
across the impedance response and most likely a loss of speaker(s) in a parallel speaker connection.
• No load fault – At least one tone above measurable area or significantly above upper threshold. Most likely
corresponding to loss of the load.
• Short circuit fault – LoadPilot analysis below short circuit threshold.
5. Operation and performance
PLM+ SERIES Operation Manual rev 3.0.1
Notes
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