Kohler Curtis F Series User Manual

7 — DIAGNOSTICS AND TROUBLESHOOTING
pg. 219
Return to TOC Curtis AC F2-A, F4-A, F6-A Motor Controllers – FOS 4.5 – April 2022
Table 24 Fault Code Troubleshooting Chart, cont’d
FLASH
CODE
FAULT NAME
(Curtis Integrated Toolkit™)
POSSIBLE CAUSES SET/CLEAR CONDITIONS FAULT ACTIONS
3-6
0x36
PM Motor Feedback
PM_Motor_Feedback
0x2232
Fault Type(s):
1. Controller saw a fast
transition to zero speed.
2. Encoder supply failed.
3. Sine or Cosine input differs
from expected.
4. Controller saw sensor failure
at speed.
5. Unrealistic motor
acceleration seen.
6. Resolver loss of signal.
7. Resolver degradation of signal.
8. Resolver loss of tracking.
1. Motor encoder failure.
2. Bad crimps or faulty wiring.
3. See Programmer » System Monitor
menu » Hardware Inputs: Analog
3 and 4.
Set: Motor position/speed Sin/
Cos sensor fault.
Clear: Reset Controller.
ShutdownVehicle:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
FullBrake
ShutdownPump
Dual Drive
Same, both motors
0x36 Motor Open
Motor_Open
0x2240
Fault Type(s): 1
1. Motor phase is open.
2. Bad crimps or faulty wiring.
Set: Motor phase U, V, or W
detected open.
Clear: Reset Controller.
ShutdownVehicle:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
FullBrake
ShutdownPump
Dual Drive
This Motor:
ShutdownMotor
SevereDual
Other Motor:
SevereDual
LOSDual
TrimDisable
3-8
0x38
Main Contactor Welded
Main_Contactor_Welded
0x2220
Fault Type(s): 1
1. Main contactor tips are
welded closed.
2. Motor phase U or V is disconnected
or open.
3. An alternate voltage path (such
as an external circuit to B+) is
providing a current to the capacitor
bank (B+ connection terminal).
Set: Just prior to the main
contactor closing, the capacitor
bank voltage (B+ connection
terminal) was loaded (via the
motor) for a short time and
the voltage did not discharge,
indicating a direct-contact to
the battery (i.e., Main tips are
welded closed).
Clear: Reset Controller.
ShutdownVehicle:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
FullBrake
ShutdownPump
Dual Drive
Same, both motors

Kohler Curtis F Series Specifications

General

Brand	Kohler
Model	Curtis F Series
Category	Controller
Language	English