Curtis 1238SE - Using the Fault Handler in Vcl

10 — VEHICLE CONTROL LANGUAGE (VCL)
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE/38SE Manual, os 31 – May 2017 Return to TOC
pg. 110
USING THE FAULT HANDLER IN VCL
The controller’s operating system detects various faults and takes appropri-ate fault actions to
protect the controller. ese faults have fault codes that are ashed on the controller status LEDs.
e fault text is displayed in the System Faults and Fault History menus of the 1313 handheld and
1314 PC programmers. ese operating system faults are covered in more detail in Chapter 10’s
Troubleshooting Chart.
Additionally, the operating system makes the status of the operating system faults available for use in
VCL programs in the form of nine variables called Status1, Status2, Status3, Status4, Status5, Status6,
Status7, Status8, and Status9. Each of these 16-bit variables contains the status of 8 faults in the lower
byte (the upper byte is always set to 0). ese Status1–9 variables are read only (RO) and can be used
in a VCL program to trigger additional fault actions such as sending fault text messages to a display
or blinking a dashboard LED.
Listed below are the the bit locations of each of the operating system faults in the Status 1–9 variables,
applicable to the default 1232E/SE - 1238E/SE controllers:
Status1
Bit0 = Main Contactor Welded (Code 38)
Bit1 = Main Contactor Did Not Close (Code 39)
Bit2 = Pot Low OverCurrent (Code 45)
Bit3 = Throttle Wiper Low (Code 42)
Bit4 = Throttle Wiper High (Code 41)
Bit5 = Pot2 Wiper Low (Code 44)
Bit6 = Pot2 Wiper High (Code 43)
Bit7 = EEPROM Failure (Code 46)
Status2
Bit0 = HPD/Sequencing Fault (Code 47)
Bit1 = Severe B+ Undervoltage (Code 17)
Bit2 = Severe B+ Overvoltage (Code 18)
Bit3 = B+ Undervoltage Cutback (Code 23)
Bit4 = B+ Overvoltage Cutback (Code 24)
Bit5 = Sin/Cos Sensor Fault (Code 36)
Bit6 = Controller Overtemp Cutback (Code 22)
Bit7 = Controller Severe Undertemp (Code 15)
Status3
Bit0 = Controller Severe Overtemp (Code 16)
Bit1 = Coill Driver Open/Short (Code 31)
Bit2 = Coi12 Driver Open/Short (Code 32)
Bit3 = Coil3 Driver Open/Short (Code 33)
Bit4 = Coi14 Driver Open/Short (Code 34)
Bit5 = PD Open/Short (Code 35)
Bit6 = Main Open/Short (Code 31)
Bit7 = EMBrake Open/Short (Code 32)
Status4
Bit0 = Precharge Failed (Code 14)
Bit1 = Digital Out 6 Open/Short (Code 26)
Bit2 = Digital Out 7 Open/Short (Code 27)
Bit3 = Controller Overcurrent (Code 12)
Bit4 = Current Sensor Fault (Code 13)
Bit5 = Motor Temp Hot Cutback (Code 28)
Bit6 = Parameter Change Fault (Code 49)
Bit7 = Motor Open (Code 37)