Curtis Instruments AC F4-A User Manual

7 — DIAGNOSTICS AND TROUBLESHOOTING
pg. 169
Return to TOC Curtis AC F4-A Motor Controller – August 2020
Table 18 Fault Code Troubleshooting Chart, cont’d
FLASH
CODE
FAULT NAME
(Curtis Integrated Toolkit™)
POSSIBLE CAUSES SET/CLEAR CONDITIONS FAULT ACTIONS
2-8
0x28
Motor Temp Hot Cutback
Motor_Temp_Hot_Cutback_
Active
0x2151
Fault Type(s): 1
1. Motor temperature is at or above
the programmed Temperature Hot
setting—resulting in a reduction of
controller drive current.
2. The motor temperature and
sensor control parameters are
misadjusted.
3. See Programmer » AC Motor Setup
» Temperature Sensor.
Set: Motor temperature is at
or above the Temperature Hot
parameter setting.
Clear: Bring the motor
temperature within range.
Reduced Drive Torque
If MotorBrakingThermal
CutBack_Enable = On,
then Regen Braking
Torque is reduced.
Fault Action:
None, unless a fault action
is programmed in VCL.
2-9
0x29
Motor Temp Sensor
Motor_Temp_Sensor_Active
0x2150
Fault Type(s): 1
1. Motor thermistor is not connected
properly.
2. Sensor polarity (between Pin 8 and
Pin 18) is incorrect.
3. The motor temperature and sensor
parameters are misadjusted.
4. See Programmer » System Monitor
menu » AC Motor » Temperature.
Set: Motor thermistor input (pin
9) is at the voltage rail.
Clear: Bring the motor
thermistor input voltage within
range.
Motor temperature
cutback disabled.
Fault Action:
None, unless a fault action
is programmed in VCL.
3-1
0x31
MAIN DRIVER
Main_Driver_Fault_Active
0x2222
Fault Type(s):
1 = Driver Short
2 = Driver Overcurrent
3 = Open/Short (High, should
be Low)
4 = Open/Short (Low, should
be High)
5 = Open Wire (at pin)
1. Open or short on driver load.
2. Dirty connector pins at controller
or contactor coil.
3. Bad connector crimps or faulty
wiring.
Set: Main Contactor driver is
either open or shorted.
This fault can be set only when
Main Enable = On.
Clear: Restore/repair any
external wiring or device-coil to
their correct state, then Reset
Controller.
ShutdownVehicle:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
FullBrake
ShutdownPump
3-2
0x32
EM Brake Driver
EM_Brake_Driver_fault_Active
0x2320
Fault Type(s):
1 = Driver Short
2 = Driver Overcurrent
3 = Open/Short (High, should
be Low)
4 = Open/Short (Low, should
be High)
5 = Open Wire (at pin)
1. Open or short on driver load.
2. Dirty connector pins at controller
or contactor coil.
3. Bad connector crimps or faulty
wiring.
Set: Electromagnetic brake
driver (pin 4) is either open or
shorted.
This fault can be set only when
EM Brake Type >0.
Clear:
Restore/repair any external
wiring or device-coil to their
correct state, then Reset
Controller.
ShutdownEMBrake
ShutdownThrottle
FullBrake
3-5
0x35
Lower Driver
Lower_Driver_Fault_Active
0x2440
Fault Type(s): 1
See Driver 1* Fault
* Driver 1 is the PD Driver, therefore the
Lower Driver fault cascades to the
Driver 1 fault (see flash code 10-1).
Set: Driver is either open or
shorted, or Driver 1 exceeded
its overcurrent setting.
Clear: Correct the open or short,
and then Reset Controller.
ShutdownPD
3-6
0x36
Encoder Fault
Encoder_Fault_Active
0x2230
Fault Type(s):
1 = Loss of regulation.
2 = Over Current trips Loss
of pulses.
3 = Loss of speed signal pulses.
4 = Autocharacterization
5 = Encoder supply (voltage)
fault.
1. Motor encoder failure.
2. Bad crimps or faulty wiring.
3. See Programmer » System Monitor
menu » AC Motor: Motor RPM.
4. See Programmer » AC Motor Setup
» Quadrature Encoder » Encoder
fault Setup.
Set: Motor encoder phase
failure detected.
Clear: Either Reset Controller, or
if parameter LOS Upon Encoder
Fault = On and Interlock has
been cycled, then the Encoder
Fault is cleared and Encoder
LOS fault (ash code 9-3) is
set, allowing limited motor
control.
ShutdownEMBrake
ShutdownThrottle
ShutdownMotor

Curtis Instruments AC F4-A Specifications

General

Brand	Curtis Instruments
Model	AC F4-A
Category	Controller
Language	English