Lab.gruppen PLM series Operation Manual page 78

11. Appendix
Displayed Text
OVER SPKR CNT
PAL ACTIVE
SERVICE CH.
PSU FAULT
SHORT CIRCUIT
SPKSAFE INACT
TEMP FLT:CH
TEMP FLT:DSP
TEMP FLT:MAG
TEMP FLT:PSU
TEMP FLT:VC
TEMP WARN:CH
TEMP WARN:MAG
TEMP WARN:VC
UNCERTAIN LOAD
UNDER SPKR CNT
VHF FAULT
VOLTAGE CLIP
WRONG LOAD
78
PLM Series Operation Manual rev 1.1.3
Event Log Text Category
Over Speaker Count Warning
n/a Fault
Fault
Channel Fault: Unit
Needs Service
Frame fault: PSU Fault
undervoltage
Channel Fault: Short Fault
Circuit Protection
Warning
SpeakerSafe not
started
Temp Fault: Amp Fault
Channel
Temp Fault: DSP area Fault
Fault
Temp Fault: Speaker
Magnet
Temp Fault: Power Fault
Supply Unit
Fault
Temp Fault: Speaker
Voice Coil
Temp.warning; Channel Warning
Warning
Temp.Warning; Speaker
Magnet
Temp.Warning; Speaker Warning
Voice-Coil
Uncertain About Load Warning
Type
Under Speaker Count Warning
Channel Fault: Very Fault
High Frequency
Fault
n/a
Fault
Load Type / Routing
Mismatch
Table 11.1: Faults and warnings overview
Type Description
More Speakers
A lower load impedance has been measured than
was predicted by the Load Library for the assigned
speaker type.
Power average limiter Total amplifier power being delivered has exceeded
the safe maximum value and the PAL has become
active
active.
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
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 load The PLM is measuring both very high load current
and very low output voltage. Short circuit protection
is active.
SpeakerSafe inactive
Warns that after LoadSmart verification,
SpeakerSafe monitoring was not started.
Power channel Temperature in the power output stage exceeds
safety limit.
temperature
DSP compartment
The temperature of the PLM's processing circuitry
has exceeded its safety limit.
temperature
Speaker Magnet
The temperature of the speaker magnet estimated
by SpeakerSafe, has exceeded the manufacturers'
temperature fault
recommended maximum.
Power supply
The temperature of the PLM's PSU has exceeded
its safety limit.
temperature
Speaker Voice Coil
The temperature of the speaker voice coil
(estimated by SpeakerSafe) has exceeded the
temperature fault
manufacturers' recommended maximum.
Power output
High temperature in the power output stage.
temperature warning
Speaker magnet
The temperature of the speaker magnet is high
(estimated by SpeakerSafe).
temperature
Speaker voice coil
The temperature of the speaker voice coil is high
(estimated by SpeakerSafe).
temperature
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.
Fewer Speakers
A higher load impedance has been measured than
was predicted by the Load Library for the assigned
speaker type.
VHF at output
An exceptionally high level of continuous HF has
been detected at the PLM's power output stage.
Voltage limiter active
The peak voltage at the output terminals has
exceeded the user-defined safe maximum.
Load type mismatch
LoadSmart is measuring load characteristics which
differ from those of the assigned speaker type.