78
PLM Series Operation Manual rev 1.1.3
11. Appendix
Displayed Text
Event Log Text
Category Type
Description
OVER SPKR CNT
Over Speaker Count
Warning
More Speakers
A lower load impedance has been measured than
was predicted by the Load Library for the assigned
speaker type.
PAL ACTIVE
n/a
Fault
Power average limiter
active
Total amplifier power being delivered has exceeded
the safe maximum value and the PAL has become
active.
SERVICE CH.
Channel Fault: Unit
Needs Service
Fault
Needs service
One or more fuses in the power stage have blown.
This is not a user-servicable fault and the unit should
be returned to your dealer.
PSU FAULT
Frame fault: PSU
undervoltage
Fault
PSU fault
The Power supply did not start up properly. It could
be due to undervoltage on the mains or due to an
internal non user-serviceable fault. If the mains are
checked to be OK and the fault persists the unit
should be returned to your dealer.
SHORT CIRCUIT
Channel Fault: Short
Circuit Protection
Fault
Short circuit load
The PLM is measuring both very high load current
and very low output voltage. Short circuit protection
is active.
SPKSAFE INACT
SpeakerSafe not
started
Warning
SpeakerSafe inactive
Warns that after LoadSmart verification,
SpeakerSafe monitoring was not started.
TEMP FLT:CH
Temp Fault: Amp
Channel
Fault
Power channel
temperature
Temperature in the power output stage exceeds
safety limit.
TEMP FLT:DSP
Temp Fault: DSP area
Fault
DSP compartment
temperature
The temperature of the PLM’s processing circuitry
has exceeded its safety limit.
TEMP FLT:MAG
Temp Fault: Speaker
Magnet
Fault
Speaker Magnet
temperature fault
The temperature of the speaker magnet estimated
by SpeakerSafe, has exceeded the manufacturers’
recommended maximum.
TEMP FLT:PSU
Temp Fault: Power
Supply Unit
Fault
Power supply
temperature
The temperature of the PLM’s PSU has exceeded
its safety limit.
TEMP FLT:VC
Temp Fault: Speaker
Voice Coil
Fault
Speaker Voice Coil
temperature fault
The temperature of the speaker voice coil
(estimated by SpeakerSafe) has exceeded the
manufacturers’ recommended maximum.
TEMP WARN:CH
Temp.warning; Channel
Warning
Power output
temperature warning
High temperature in the power output stage.
TEMP WARN:MAG
Temp.Warning; Speaker
Magnet
Warning
Speaker magnet
temperature
The temperature of the speaker magnet is high
(estimated by SpeakerSafe).
TEMP WARN:VC
Temp.Warning; Speaker
Voice-Coil
Warning
Speaker voice coil
temperature
The temperature of the speaker voice coil is high
(estimated by SpeakerSafe).
UNCERTAIN LOAD
Uncertain About Load
Type
Warning
Load uncertainty
When speaker Fingerprints are taken a tolerance
band is also defined to take into account production
variations. If LoadSmart results lie in this band a
Load uncertainty warning results. The user should
re-check the load and if all appears to be correct it is
likely that normal operation will result.
UNDER SPKR CNT
Under Speaker Count
Warning
Fewer Speakers
A higher load impedance has been measured than
was predicted by the Load Library for the assigned
speaker type.
VHF FAULT
Channel Fault: Very
High Frequency
Fault
VHF at output
An exceptionally high level of continuous HF has
been detected at the PLM’s power output stage.
VOLTAGE CLIP
n/a
Fault
Voltage limiter active
The peak voltage at the output terminals has
exceeded the user-defined safe maximum.
WRONG LOAD
Load Type / Routing
Mismatch
Fault
Load type mismatch
LoadSmart is measuring load characteristics which
differ from those of the assigned speaker type.
Table 11.1: Faults and warnings overview
