Tesira Operation Manual

14. Appendix
38
D SERIES Tesira Operation Manual rev 1.0.0
14. Appendix
14.1. Faults and warnings
The “On Screen Text” given below is displayed by hovering over the corresponding status LEDs (when amber or
red) shown in CAFÉ online views.
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
Amplier 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 congured
nominal current and prole
Improve mains distribution
and update BEL
conguration or reduce
output power to avoid
limiting
Warning
Power supply
Temperature Limit
PTL ACTIVE
Amplier 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
Amplier channel is reducing output
power to avoid amplier 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 rmware
UPGRADE PSU
Power supply rmware version not
compatible with amplier
Upgrade amplier rmware
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
Warning
Sense fault DSP SENS FLT: DSP
Voltage and current sensing on amplier
output faulty. Audio continues but
protection might be compromised.
No load monitoring.
Restart device; if not
cleared it needs servicing
Fault
Major Tesira fault active
in the device
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