Operation Manual

9. Appendix
PLM+ SERIES Operation Manual rev 3.0.4
69
Category/Type Name On screen text Description Action
PSU
Warning
Under Voltage Limit UVL ACTIVE
The Under Voltage limiter is active as the
mains supply is approaching the lower
end of the device´s operational voltage.
Output power is decreased to ensure
mains distribution does not collapse
Increase mains distribution
stiffness or reduce output
power to avoid limiting
Warning
Power Average Limit PAL ACTIVE
to average power or mains current
draw is above safe operating levels
Reduce output power
to avoid limiting
Warning
Breaker Emulation Limit BEL ACTIVE
Power supply is reducing mains current
Improve mains distribution
and update BEL
output power to avoid
limiting
Warning
Mains supply glitch MAINS GLITCH
Mains glitch (missing cycles) was
detected on the mains inlet
Check mains distribution/
connection
Fault
Need service NEED SERVICE:1-8 Power supply internal error
Restart device; if not
cleared it needs service
Fault
Mains voltage above
400 volt peak
MAINS>400 VPK
Power supply detects mains voltage
above 400 volt peak. Protective shut
down, auto restart attempt
Check mains distribution/
connection
Fault
Mains voltage above
270 V
MAINS>270 V
Power supply detects mains voltage
above operation voltage. Protective
shut down, auto restart attempt
Check mains distribution/
connection
Fault
Mains voltage below
65 V
Mains<65 V
Power supply detects mains voltage
below operation voltage. Protective
shut down, auto restart attempt
Check mains distribution/
connection
Fault
Power supply fault PSU FAULT Internal power supply fault
Check mains distribution/
connection. Restart
device; if not cleared
it needs service
Fault
Check mains CHECK MAINS
Power supply detects unstable mains
supply. Protective shut down, auto
restart attempt
Check mains distribution/
connection
Fault
Power supply power protect PSU POWER PROT
Too high output power for too low mains
supply voltage. Protective shut down,
auto restart attempt
Improve mains supply
voltage or reduce
output power
LOAD
Warning
Speaker short SPKR SHORT Both LoadPilot tones below thresholds Check load or calibration
Warning
Speaker damaged SPKR DAMAGED
One LoadPilot tone is above
or below threshold
Check load or calibration
Warning
Under speaker count UNDER SPKR CNT
Both LoadPilot tones above thresholds
or LoadSmart detected fewer
speakers than expected
Check load and
cabling alibration
9. Appendix
70
PLM+ SERIES Operation Manual rev 3.0.4
Category/Type Name On screen text Description Action
Warning
More speakers OVR SPKR COUNT
LoadSmart detected more speakers
than expected
Check load and
Warning
Uncertain about load UNCERTAIN LOAD LoadSmart uncertain about load
Check load and
Warning
LOAD NOT VER
Perform LoadSmart
Fault
No load NO LOAD
At least one LoadPilot tone above
above thresholds
Check load or calibration
Fault
Wrong load WRONG LOAD
LoadSmart detected impedance
response output model
Check load and
Fault
Short circuit SHORT CIRCUIT
LoadPilot or full frequency analysis
below short threshold or hardware
short protection
Check load and cabling
AMP
Warning
channel
TEMP WARN
critical temperature
Improve cooling or reduce
output power to avoid
temperature becoming
critical
Fault
TEMP FAULT
internal protection limit
Automatically unmutes
when cooled down
Fault
Service channel SERVICE CH.
Restart device; if not
cleared it needs service
Fault
Very high frequency fault VHF FAULT
Check input signal or
reduce output. With a
maximum of -12 dB of gain
reduction in the VHF
warning, VHF Fault will
trigger after
15 seconds
Warning
Very high frequency warning
VHF WARNING
(PLM20K/12K44 only)
Check input signal
Clip
Current average limiter CAL ACTIVE
above safe operating level
Reduce output power
to avoid limiting
Clip
Current clip CURRENT CLIP
current limit
Reduce output power
to avoid limiting
Clip
Voltage clip VOLTAGE CLIP
Reduce output power
to avoid limiting
Clip
Module clip MOD. CLIP Module output signal clipped
Review gain structure.
Module gain vs AmpGain
SIGNAL
Fault
No input source
NO INPUT
Input router has no valid
input source
Review input router
settings/connections
Clip
Analog/AES input clip INPUT CLIP
The signal on the analog/AES input
is above inputs capability
Lower the signal on the
Amplifier channel gain
reduction due to VHF content
Table 9.1: Warning, Fault and Mute Indications (alphabetical by LCD Text / Event Log Text)
9. Appendix
70
PLM+ SERIES Operation Manual rev 3.0.4