HELI CQD16X1, Operation & Service Manual

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if the three phase connecting of the motor is correct;
check if the motor to earth leaks; check if the motor coil
has broken circuit.
2. Change controller
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37
CONTACTOR
CLOSED
CONTACTOR
CLOSED
The controller checks if the main contactor contact is
closed when the coil isn’t driven, trying to discharge the
capacitor bank. If the capacitor voltage decreases by
20% of the battery, the fault condition is entered.
1. It is suggested to check the contactor contact, if
it is mechanically stuck or pasted or change the
contactor.
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38
CONTACTOR
OPEN
CONTACTOR
OPEN
The main contactor coil has been driven by the logic
board, but the contactor doesn’t close. Two possible
reasons:
1. mechanical fault of contactor;
2.The wires to the coil are not well connected.
3.Change the controller if the contact is normal.
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53
STBY I HIGH HIGH
STANDBY
CURRENT
The output signal of the current sensor tested by
micro-control system exceeds the allowable range of
the non-running current. Change the controller.
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60
CAPACITOR
CHARGE
Incorrect
capacitor
charging
When the key is switched ON, the inverter tries to
charge the capacitor through a power resistance, and
check if the capacitor is charged within a timeout. If
this is not true and capacitor voltage is less than 20% of
the battery voltgae: an alarm is signaled; the main
contactor is not closed. Possible reasons:
Possible reasons:
1. Outskirt equipments such as DC-DC, motor and
other equipments affect controller charging. Remove
these disturbances.
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
℃