HELI CQD16X1, Operation & Service Manual

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2. The charging resistance, charging circuit and power
module has fault. Change the controller.
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62
TEMPERAURE High
temperature
The controller temperature is higher than 85
℃
when total power is allowed. ( the temperature is related
to parameter “MAXIMUM CURRENT”
）
.
Corresponding relations:
Parameter setting alarm temperature
MAXIMUM CURRENT=50% 96
℃
MAXIMUM CURRENT=60% 94
℃
MAXIMUM CURRENT=70% 92
℃
MAXIMUM CURRENT=80% 90
℃
MAXIMUM CURRENT=90% 88
℃
MAXIMUM CURRENT=100% 86
℃
The max. current of the controller reduces with the
increasing of temperature. when the temperature is
105
℃，
the controller current is reduced to 0.
If the fault occurs when the chopper is cold:
1. Logic board temperature calibration parameter is
not right, check the parameters.
2. fault of controller internal temperature sensor,
change the controller.
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65
MOTOR
TEMPERAT.
High motor
temperature
Fault occurs when the motor temperature digital switch
turns on or analog signal exceeds cut off value. When
the motor temperature reaches to 120
℃，
the truck still
can travel but truck performance degrades because the
max. current is reduced. when the temperature reaches
to 125
℃，
the motor stops working. At this time, cool
the motor.
If the fault still occurs when the motor is cold, check
the wirings. If all are ok, change the controller.
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74
DRIVER
SHORTED
Driver short
circuit
When the key is turned off, the microprocessor
will check if the driver of the main contactor has short
circuit. if there is short circuit, it alarms. Check if the
main contactor coil positive pole has short circuit to
A16 or negative pole. If all are right, change the
controller.
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78
VACC NOT OK Accelerator
fault
The test is made in standby. This alarm indicates that
the accelerator voltage is 1V greater than the minimum
value programmed by the PROGRAM VACC function.
Possible causes:
1. Accelerator voltage max. value and min. value have
not collected. Enter into PROGRAM VACC to collect