7 — DIAGNOSTICS AND TROUBLESHOOTING
Curtis AC F4-A Motor Controller – August 2020 Return to TOC
pg. 182
Table 18 Fault Code Troubleshooting Chart, cont’d
FLASH
CODE
FAULT NAME
(Curtis Integrated Toolkit™)
POSSIBLE CAUSES SET/CLEAR CONDITIONS FAULT ACTIONS
12-6
0xC6
Lower Input Fault
Lower_Input_Active
0x2105
Fault Type(s): 1
The associated fault diagnostic with
the assigned lower-input source
triggers this fault.
For example:
If the Lower_Input_Source is
an analog input, then any faults
detected by the respective Input
fault diagnostics are cascaded and
reported within this fault code.
Note: An analog input fault
diagnostics may be out of range
when set as a voltage input or
may include potentiometer faults if
congured as a 2/3-wire pot.
Set: Faults from the respective/
assigned “Lower_Input_
Source” are cascaded and
reported.
Clear: Resolve any input
assignment conict, or out-
of-range faults, then Reset
Controller.
ShutdownLower
12-10
1
0xCA
1
Phase PWM Mismatch
Phase_PWM_Mismatch_Active
0x2101
Fault Type(s):
0 = U phase.
1 = V phase.
2 = W phase.
1
subject to device profile
revision.
Internal to Controller
Motor Phase PWM.
Set: The difference between
the commanded phase PWM
duty cycle and the measured is
greater than allowed.
Clear: Reset Controller.
ShutdownVehicle:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
FullBrake
ShutdownPump
Note: For faults not in the above tables, consult the System Information file (from the VCL Studio app).
Faults will vary based upon the device profile version.
Consult the distributor or Curtis support engineer for further fault details.