Kohler Curtis F Series User Manual

7 — DIAGNOSTICS AND TROUBLESHOOTING
pg. 211
Return to TOC Curtis AC F2-A, F4-A, F6-A Motor Controllers – FOS 4.5 – April 2022
FLASH
CODE
FAULT NAME
(Curtis Integrated Toolkit™)
POSSIBLE CAUSES SET/CLEAR CONDITIONS FAULT ACTIONS
1-7
0x17
Severe KSI Undervoltage
Severe_KSI_Undervoltage
0x2122
Fault Type(s):
1 = Brownout is disabled due
to invalid product data
conguration.
2 = Keyswitch_Voltage
below brownout threshold
at bootup.
3 = Keyswitch_Voltage below
low brownout threshold for
5 ms.
4 = Keyswitch_Voltage below
high brownout threshold for
64 ms.
1. Non-controller system drain on
battery/keyswitch circuit wiring.
2. Resistance in low power (KSI)
circuit is too high.
3. KSI disconnected while driving.
4. Blown fuse.
5. See Programmer » System Monitor
menu » Battery » Keyswitch
Voltage.
6. See the Voltage Limits in Chapter 3.
Set: The KSI voltage dropped
into the Brownout Voltage
regions.
Clear: Bring KSI voltage above
Brownout Voltage.
ShutdownAll:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
ShutdownInterlock
ShutdownDriver1
ShutdownDriver2
ShutdownDriver3
ShutdownDriver4
ShutdownDriver5
ShutdownDriver6
ShutdownDriver7
ShutdownPD
FullBrake
ShutdownPump
ShutdownCoilSupply
ShutdownVehicle
ShutdownLower
ShutdownLift
Dual Drive
Same, both motors
1-8
0x18
Severe B+ Overvoltage
Severe_B_Plus_Overvoltage
0x2130
Fault Type(s): 1
1. Battery parameters are misadjusted.
2. Battery resistance too high for
given regen current.
3. Battery disconnected while
regen braking.
4. See Programmer » System
Monitor menu » Controller »
Capacitor Voltage.
5. See the Voltage Limits in Chapter 3.
Set: Capacitor bank voltage
exceeded the Severe
Overvoltage limit with the FET
bridge enabled.
Clear: Bring capacitor voltage
below Severe Overvoltage limit,
and then Reset Controller.
ShutdownVehicle:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
FullBrake
ShutdownPump
Dual Drive
This Motor:
ShutdownMotor
SevereDual
Other Motor:
SevereDual
LOSDual
TrimDisable
1-8
0x18
Severe KSI Overvoltage
Severe_KSI_Overvoltage
0x2132
Fault Type(s): 1
1. Battery-voltage applied to KSI
(pin 1) exceeds the Severe
Overvoltage limit.
2. See Programmer » Monitor menu »
Battery » Keyswitch Voltage.
3. See the Voltage Limits in Chapter 3.
Set: KSI voltage exceeded the
Severe Overvoltage limit.
Clear: Bring KSI voltage below
the Severe Overvoltage limit,
and then Reset Controller.
ShutdownVehicle:
ShutdownMotor
ShutdownMainContactor
ShutdownEMBrake
ShutdownThrottle
FullBrake
ShutdownPump
Dual Drive
This Motor:
ShutdownMotor
SevereDual
Other Motor:
SevereDual
LOSDual
TrimDisable
Table 24 Fault Code Troubleshooting Chart, cont’d

Kohler Curtis F Series Specifications

General

Brand	Kohler
Model	Curtis F Series
Category	Controller
Language	English