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CONTROLLER DIAGNOSTIC TOOL (CDT)
Diagnostics Menu
11
FAULT RECOVERY
When a fault is detected by the speed controller, the speed controller will attempt to recover from the fault and resume
normal operation. In the case of an intermittent problem such as a loose wiring connection, the controller
may
be able
to recover and operate normally for a while, but the problem should be repaired before placing the vehicle in service.
Depending on the type of fault, the controller will attempt to recover immediately after the condition clears or after the
accelerator pedal has been cycled (released and pressed again).
_
CONTROLLER FAULT
TEST WHEN
CONTROLLER RESPONSE
RECOVER WHEN
01 THROTTLE FAULT 1
Continuous
10
Condition clears
02 UNDER VOLTAGE
Continuous
5
Condition clears
03 OVERVOLTAGE
Continuous
7
Condition clears
04 THERMAL CUTBACK
Continuous
5
Condition clears
06 HPD
KSI Off/On, F or R on
10
Throttle < 25%
07 MAIN WELDED
Contactor commanded open
4
Main or relay successfully opened
08 RELAY WELDED
After Walk Away sequenced
4
Main or relay successfully opened
09 SPEED SENSOR FAULT
Throttle Applied, Arm PWM > 50%
4
Speed pulses appear
10 MAIN DRIVER ON
Continuous while KSI is ON
4
Condition clears
11 MAIN COIL OPEN
Continuous while KSI is ON
3
Condition clears
12 MAIN DROPOUT
Throttle applied
3,12
Throttle applied
13 MOTOR STALL
Throttle applied
6
Speed pulses appear
14 MAIN DRIVER OFF
Throttle applied
3,10
Condition clears
15 RELAY DNC
WalkAway
2,13
Throttle applied
16 KEY SWITCH SRO
At controller power up
3
Cycle KSI
17 CURRENT SENSE FAULT
KSI Off/On, Continuous
1,2,3
KSI Off/On when condition cleared
18 M-SHORTED
Throttle Applied
1,2
Throttle Cycled
20 DRIVER OVERCURRENT
Continuous
1,2,3,11
Throttle Reapplied
21 PRECHARGE FAULT
Throttle Applied
1,2,3,11
Cycle KSI or Throttle reapplied
22 FIELD MISSING
Throttle Applied
2,10,11
Cycle KSI
23 RELAY DRIVER ON
Continuous
4
Condition clears
24 HW FAILSAFE
Throttle Applied
1,2,3,11
Cycle KSI
25 INCORRECT PASSWORD
At power up, after SmartKey
codes entered
8,9
Cycle Run/Tow
26 CIRCUIT BRKR OPEN
Continuous
4
Condition Clears
27 MAX PASSWORD TRIES
At power up, after SmartKey
codes entered
8
Not Field Repairable
29 RELAY DRVR OFF
WalkAway
2,13
Condition clears in WalkAway
30 RELAY COIL FAULT
Continuous
4
Condition clears
2017 Carryall 500 and 700 Maintenance and Service Manual
Page 11-19
Summary of Contents for Carryall 500
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