IQ DISPLAY MODULE (IQDM) SERIES 2 AND
IQDM-P DIAGNOSTICS
Faults Menu
23
5. Gradually reduce the armature current limit
6. Quickly reduce the armature current until speed sensor pulses occur
7. Gradually reduce Regen Current Limit
8. SmartKey functions NOT enabled
9. PASSWORD TRIES count incremented
10. Set Internal Scaled Throttle Signal to Zero
11. Turn off Walk Away Relay
12. Activate Walk Away function
13. Activate Walk Away beeping immediately
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
TABLE CONTINUED ON NEXT PAGE
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
Page 23-11