Curtis 1222 Manual, os 15
101
2 9 J A N U A R Y 2 0 1 3 D R A F T
7 — DIAGNOSTICS & TROUBLESHOOTING
Table 6 TROUBLESHOOTING CHART
FLASH SUB
CLEAR STEER TRACTION
CODE CODE
NAME
POSSIBLE CAUSE
SET CONDITION
CONDITION
FAULT ACTION
FAULT ACTION
11 1 Hardware Fault An internal hardware error has been Hardware error detected. Cycle KSI. Shutdown. 1 = Stop.
detected; controller defective.
12 1
Controller 1. External short of phase U, V, or W Controller hardware detected overcurrent Cycle KSI. Shutdown. 1 = Stop.
Overcurrent 1 motor connection. condition.
2. Controller defective.
12 2
Controller 1. External short of phase U, V, or W 1. Phase current > 120% of base current limit. Cycle KSI. Shutdown. 1 = Stop.
Overcurrent 2 motor connection. 2. Phase current exceeded the current
2. Motor parameters are mis-tuned. measurement limit.
3. Controller defective.
13 1
Current Sensor 1. Leakage to vehicle frame from phase Controller current sensors have invalid Cycle KSI. Shutdown. 1 = Stop.
Fault U, V, or W (short in motor stator). offset reading.
2. Controller defective.
14 1
Precharge 1. External load on capacitor bank (B+ Capacitor bank voltage does not complete Cycle KSI. Shutdown. 1 = Stop.
connection terminal) that prevents the charge to minimum of 75% of the
the capacitor bank from charging. keyswitch voltage.
2. Controller defective.
15 1
Controller Controller is operating in an extreme Controller heatsink temperature is equal Bring heatsink Warning Only. 3 = No action.
Severe environment. to or below -40°C. temp above
Undertemp -35°C.
16 1
Controller 1. Improper mounting of controller. Controller heatsink temperature is equal Cycle KSI. Warning then 1 = Stop.
Severe 2. Excessive load on vehicle. to or above 95°C. Shutdown.
Overtemp 3. Controller is operating in an extreme
environment.
17 1 Severe
1. Battery or battery cables or battery 1. Capacitor bank voltage (B+ terminal) Cycle KSI. Shutdown. 1 = Stop.
Undervoltage connections defective. less than 12 V when Interlock = On.
2. Excessive non-controller system drain 2. Keyswitch voltage less than 12 V.
on battery.
3. Battery disconnected while driving.
4. Blown B+ fuse or steer contactor
did not close.
18 1 Severe
1. Battery or battery cable resistance Keyswitch or capacitor voltage (B+ terminal) Cycle KSI. Shutdown. 1 = Stop.
Overvoltage too high for a given regen current. greater than 65 V.
2. Battery disconnected while regen
braking.
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