Fault Messages - Trane TR200 Programming Manual

Troubleshooting

Fault messages

Hazardous Service Procedures!
The maintenance and troubleshooting procedures recommended in this section of the manual could result in
exposure to electrical, mechanical or other potential safety hazards. Always refer to the safety warnings provided
throughout this manual concerning these procedures. Unless specified otherwise, disconnect all electrical pow-
er including remote disconnect and discharge all energy storing devices such as capacitors before servicing.
Follow proper lockout/tagout procedures to ensure the power cannot 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 perform these tasks. Failure to follow all of the recommended
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
.
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
adjustable frequency drive. This warning or alarm
will only appear if programmed by the user in par.
1-80 Function at Stop.
Troubleshooting: Check the connection between the
drive and the motor.
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the line
voltage imbalance is too high. This message also ap-
pears for a fault in the input rectifier on the adjustable
frequency drive. Options are programmed at par.
14-12
Function at Mains Imbalance.
Troubleshooting: Check the supply voltage and sup-
ply currents to the adjustable frequency drive.
5-8
Live Zero Timeout Func-
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 adjustable frequency
drive 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 adjustable frequency
drive is still active.
WARNING/ALARM 7, DC overvoltage
If the intermediate circuit voltage exceeds the limit,
the adjustable frequency drive 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 undervoltage
If the intermediate circuit voltage (DC) drops below
the undervoltage limit, the adjustable frequency
drive checks if a 24 V backup supply is connected. If
no 24 V backup supply is connected, the adjustable
frequency drive trips after a fixed time delay. The time
delay varies with unit size.
WARNING/ALARM 9, Inverter overloaded
The adjustable frequency drive is about to cut out be-
cause of an overload (too high current for too long).
The counter for electronic, thermal inverter protec-
tion gives a warning at 98% and trips at 100%, while
giving an alarm. The adjustable frequency drive
not
be reset until the counter is below 90%.
The fault is that the adjustable frequency drive is
overloaded 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.
TR200 Programming Guide
Brake Function
can-