Troubleshooting - Faults And Diagnostics - Trane RTXC-XE Series Installation, Operation And Maintenance Manual

Troubleshooting - Faults and Diagnostics

RTXC-SVX003D-EN
Table 19. Fault Display and Reset
Stage Solution
Check the operating panel for
detailed information of recent three
faults, such as fault type and
After the
frequency, current, bus voltage,
fault
DI/DO state, accumulative power-
occurs
on time and accumulative running
time, IGBT temperature, and fault
subcode at occurrence of the faults.
Before Locate the fault cause and rectify
the fault the fault. Then follow the steps
is reset below to reset the fault.
1) Fault resetting through a DI
terminal Allocate a DI terminal with
function 9 "Fault reset (RESET)" by
setting any of F4- 00 (DI1 function
selection) to F4-04 (DI5 function
selection) to 9 (Fault reset).
2) Fault resetting using the
operating panel
Press the STOP key on the
operating panel.
Fault
resetting 3) Automatic resetting
method Disconnect the power supply. Wait
until the fault code disappears and
connect the power supply again.
4) Fault resetting through
communication
Confirm that F0-02 (Command
source selection) is set to 2 (Serial
comms.) and write "7" (fault reset)
to communication address 2000H
using a host controller.
Table 20. Faults and Diagnostics
Fault Code Fault Name
E01.01
Hardware
fault
E01.02
E01.03
Overcurrent
E02.00 during
acceleration
View this information using F9- 14 (1st fault type) to
F9-46 (Fault subcode upon 1st fault).
Troubleshoot the fault according to "Faults and
Diagnostics".
Cause
Check whether the main circuit is
The AC drive is powered on.
abnormal in current Check whether the hall sensor or current
sampling. sampling circuit is damaged. If yes,
contact the agent or Trane.
The contactor is faulty. Check the contactor.
Check that the braking resistor is
The braking resistor is
normal, and its model matches the AC
short-circuited.
drive model.
A ground fault or short
circuit exists in the Check whether short circuit occurs on
output circuit of the AC the motor, motor cable, or contactor.
drive.
The control mode is Set motor parameters according to the
SVC, but motor auto- motor nameplate and perform motor
tuning is not performed. auto-tuning.
Acceleration time is too
Increase acceleration time.
short.
Ensure that current limit is enabled (F3-
19 = 1).
The setting of F3-18 (V/F current limit
The overcurrent stall
level) is too large. Adjust it between
prevention parameters
110% and 140%.
are set improperly.
The setting of F3-20 (V/F current limit
gain) is too small. Adjust it between 5
and 20.
Customized torque boost
Adjust the customized torque boost or
or V/F curve is not
V/F curve.
appropriate.
The spinning motor is Enable the flying start function or start
started. the motor after it stops.
View historical fault records. If the
current value is far from the overcurrent
The AC drive suffers
level, locate the interference source. If
external interference.
external interference does not exist, the
drive board or hall device may be faulty.
Remarks
Possible Solution
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