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14. Faults and warnings
Category/Type
Name
ALARM
Minor Tesira fault active in the
Warning
device
Under Voltage Limit
Warning
Power Average Limit
Warning
Breaker Emulation Limit
Warning
Power supply
Warning
Temperature Limit
Amp channel
Warning
Temperature Limit
Mains supply glitch
Warning
Temperature warning
Warning
power supply
Upgrade power
Warning
supply firmware
Temperature warning
Warning
DSP area
Major Tesira fault active
Fault
in the device
Sense fault DSP
Frame Fault
Audio Fault
Fault
Need service
Fault
Temperature fault power supply
Fault
Temperature fault DSP area
Fault
Mains voltage above
Fault
400 volt peak
On screen text
The Under Voltage limiter is active as the
mains supply is approaching the lower
UVL ACTIVE
end of the device´s operational voltage.
Output power is decreased to ensure
mains distribution does not collapse
Amplifier is reducing output power due to
PAL ACTIVE
average power or mains current draw is
above safe operating levels
Power supply is reducing mains current
BEL ACTIVE
draw to stay within BEL configured
nominal current and profile
Amplifier is reducing output power to
PTL ACTIVE
avoid power supply temp fault protection
Amplifier channel is reducing output
ATL ACTIVE
power to avoid amplifier channel
temp fault protection
Mains glitch (missing cycles)
MAINS GLITCH
was detected on the mains inlet
Power supply temperature approaching
TEMP WARN: PSU
Power supply firmware version not
UPGRADE PSU
compatible with amplifier
DSP area temperature approaching
TEMP WARN: DSP
Voltage and current sensing on amplifier
output faulty. Audio continues but
SENS FLT: DSP
protection might be compromised.
No load monitoring.
AUDIO FAULT
Internal audio interface not functioning
NEED SERVICE: 1-8
Power supply internal error
Power supply temperature reached
TEMP FLT: PSU
internal protection limit
TEMP FLT: DSP
DSP area reached critical temperature
Power supply detects mains voltage
MAINS > 400 VPK
above 400 volt peak. Protective shut
down, auto restart attempt
14. Faults and warnings
Description
Increase mains distribution
stiffness or reduce output
power to avoid limiting
Reduce output power
to avoid limiting
Improve mains distribution
and update BEL
configuration or reduce
output power to avoid
Improve cooling or reduce
output power to avoid
Improve cooling or reduce
output power to avoid
distribution/connection
Improve cooling or reduce
output power to avoid
critical levels
temperature becoming
Upgrade amplifier firmware
Improve cooling or reduce
output power to avoid
critical levels
temperature becoming
Restart device; if not
cleared it needs servicing
Restart device; if not
cleared it needs servicing
Restart device; if not
cleared it needs servicing
Automatically restarts when
Improve cooling or
Check mains distribution/
D SERIES Tesira Quick Start Guide rev 2.0.0
Action
limiting
limiting
limiting
Check mains
critical
critical
cooled down
reduce power
connection
31
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