Fault Messages - Trane TR200 Series Programming Manual

Fault Messages

WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures rec-
ommended in this section of the manual could result in
exposure to electrical, mechanical or other potential safe-
ty hazards. Always refer to the safety warnings provided
throughout this manual concerning these procedures.
Unless specified otherwise, disconnect all electrical
power including remote disconnect and discharge all en-
ergy storing devices such as capacitors before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized. When neces-
sary to work with live electrical components, have a
qualified licensed electrician or other individual who has
been trained in handling live electrical components per-
form these tasks. Failure to follow all of the recommen-
ded safety warnings provided, could result in death or
serious injury.
WARNING 1, 10 volts low
The control card voltage is below 10 V from terminal
50.
Remove some of the load from terminal 50, as the 10
V supply is overloaded. Max. 15 mA or minimum 590
Ω.
This condition can be caused by a short in a connec-
ted potentiometer or improper wiring of the potenti-
ometer.
Troubleshooting: Remove the wiring from terminal
50. If the warning clears, the problem is with the cus-
tomer wiring. If the warning does not clear, replace
the control card.
WARNING/ALARM 2, Live zero error
This warning or alarm will only appear if program-
med by the user in par.6-01
tion. The signal on one of the analog inputs is less
than 50% of the minimum value programmed for that
input. This condition can be caused by broken wiring
or faulty device sending the signal.
WARNING/ALARM 3, No motor
No motor has been connected to the output of the
frequency converter. This warning or alarm will only
appear if programmed by the user in par.1-80
tion at Stop.
Troubleshooting: Check the connection between the
drive and the motor.
TR200 Programming Guide
Live Zero Timeout Func-
Func-
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the mains
voltage imbalance is too high. This message also ap-
pears for a fault in the input rectifier on the frequency
converter. Options are programmed at par.
14-12 Function at Mains Imbalance.
Troubleshooting: Check the supply voltage and sup-
ply currents to the frequency converter.
WARNING 5, DC link voltage high
The intermediate circuit voltage (DC) is higher than
the high voltage warning limit. The limit is dependent
on the drive voltage rating. The frequency converter
is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is lower than the
low voltage warning limit. The limit is dependent on
the drive voltage rating. The frequency converter is
still active.
WARNING/ALARM 7, DC overvoltage
If the intermediate circuit voltage exceeds the limit,
the frequency converter trips after a time.
Troubleshooting:
Extend the ramp time
Change the ramp type
Activate functions in par.2-10
Increase par.14-26 Trip Delay at Inverter Fault
WARNING/ALARM 8, DC under voltage
If the intermediate circuit voltage (DC) drops below
the under voltage limit, the frequency converter
checks if a 24 V backup supply is connected. If no 24
V backup supply is connected, the frequency convert-
er trips after a fixed time delay. The time delay varies
with unit size.
WARNING/ALARM 9, Inverter overloaded
The frequency converter is about to cut out because
of an overload (too high current for too long). The
counter for electronic, thermal inverter protection
gives a warning at 98% and trips at 100%, while giv-
ing an alarm. The frequency converter
until the counter is below 90%.
The fault is that the frequency converter is overloa-
ded by more than 100% for too long. Note: See the
derating section in the Design Guide for more details
if a high switching frequency is required.
Troubleshooting
Brake Function
cannot
be reset
249