Description

1:DIAGNOSTICS AND TROUBLESHOOTING

LED DIAGNOSTICS

During normal operation, with no faults present, the Status LED flflashes steadily.

If the controller detects a fault, a 2-digit fault code is flflashed until the fault is

corrected. For example, code “2,3”—HPD—appears as:

LED off      no power or defective controller

solid on     controller or microprocessor fault

0,1 ■ ¤ controller operational; no known faults

1,1 ¤ ¤ EEPROM fault

1,2 ¤ ¤¤ MOSFET short fault

1,3 ¤ ¤¤¤ [not used]

1,4 ¤ ¤¤¤¤ wiring fault

2,1 ¤¤ ¤ under voltage cutoff

2,2 ¤¤ ¤¤ [not used]

2,3 ¤¤ ¤¤¤ HPD sequencing error

2,4 ¤¤ ¤¤¤¤ throttle fault

3,1 ¤¤¤ ¤ main contactor coil short / driver fault

3,2 ¤¤¤ ¤¤ main contactor weld fault

3,3 ¤¤¤ ¤¤¤ main contactor driver fault

3,4 ¤¤¤ ¤¤¤¤ main contactor DNC (missing or open)

4,1 ¤¤¤¤ ¤ under voltage cutback, low battery voltage

4,2 ¤¤¤¤ ¤¤ over voltage

4,3 ¤¤¤¤ ¤¤¤ thermal cutback, due to over/under temperature

4,4 ¤¤¤¤ ¤¤¤¤ over temperature cutoff, due to severe

overtemperature(>110°C)

2 Ten throttle types can be used with these controllers:

Type 0 2-wire potentiometer, 0–5kΩ

Type 1 2-wire potentiometer, 5kΩ–0

Type 2 single-ended 0–5V input

Type 3 2-wire potentiometer, 4.6kΩ–0

Type 4 2-wire potentiometer, 5.5kΩ–0

Type 5 2-wire potentiometer, 1kΩ–0

Type 6 ITS input

Type 7 single-ended 6.3–10.6 V input

Type 8 single-ended 6–12 V input

Type 9 single-ended 3-wire potentiometer, 0–5kΩ

3：Typical circuit diagram of CURITS 1204 series controller

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