14. Faults and warnings
D SERIES Tesira Quick Start Guide rev 1.2.0
21
14. Faults and warnings
Category/Type
Name
On screen text
Description
Action
ALARM
Warning
Minor Tesira fault active in the
device
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
Amplifier is reducing output power due 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
draw to stay within BEL configured
nominal current and profile
Improve mains distribution
and update BEL
configuration or reduce
output power to avoid
limiting
Warning
Power supply
Temperature Limit
PTL ACTIVE
Amplifier is reducing output power to
avoid power supply temp fault protection
Improve cooling or reduce
output power to avoid
limiting
Warning
Amp channel
Temperature Limit
ATL ACTIVE
Amplifier channel is reducing output
power to avoid amplifier channel
temp fault protection
Improve cooling or reduce
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
Warning
Temperature warning
power supply
TEMP WARN: PSU
Power supply temperature approaching
critical levels
Improve cooling or reduce
output power to avoid
temperature becoming
critical
Warning
Upgrade power
supply firmware
UPGRADE PSU
Power supply firmware version not
compatible with amplifier
Upgrade amplifier firmware
Warning
Temperature warning
DSP area
TEMP WARN: DSP
DSP area temperature approaching
critical levels
Improve cooling or reduce
output power to avoid
temperature becoming
critical
Fault
Major Tesira fault active
in the device
Frame Fault
Sense fault DSP
SENS FLT: DSP
Voltage and current sensing on amplifier
output faulty. Audio continues but
protection might be compromised.
No load monitoring.
Restart device; if not
cleared it needs servicing
Fault
Audio Fault
AUDIO FAULT
Internal audio interface not functioning
Restart device; if not
cleared it needs servicing
Fault
Need service
NEED SERVICE: 1-8
Power supply internal error
Restart device; if not
cleared it needs servicing
Fault
Temperature fault power supply
TEMP FLT: PSU
Power supply temperature reached
internal protection limit
Automatically restarts when
cooled down
Fault
Temperature fault DSP area
TEMP FLT: DSP
DSP area reached critical temperature
Improve cooling or
reduce power
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