WEG CFW-11W G2 RB Series, Руководство пользователя

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Troubleshooting and Maintenance
6-2 | CFW-11W G2
6
6.2 ALARMS, FAULTS AND POSSIBLE CAUSES
Table 6.1: Alarms, faults and possible causes
Fault/Alarm Description Possible Causes
F020:
24 Vdc Power Supply
Undervoltage Undervoltage on the 24 Vdc power supply that feeds
the control.
„
Voltage on the power supply below 22.8 Vdc.
F021:
DC Link Undervoltage Undervoltage on the intermediate circuit.
„
Supply voltage too low, producing voltage on the
DC link below the minimum value (read value in
parameter P0004):
− Ud < 530 V – Supply voltage 500-525 V
(P0296 = 5).
− Ud < 696 V – Supply voltage 550-575 V
(P0296 = 6).
− Ud < 605 V - Supply voltage 600 V (P0296 = 7).
− Ud < 696 V – Supply voltage 660-690 V
(P0296 = 8).
„
Phase loss in the input.
„
Fault on the pre-charge circuit.
„
Parameter P0296 selected for use above the rated
line voltage.
F022:
DC Link Overvoltage Overvoltage on the intermediate circuit.
„
Supply voltage too high, producing voltage on the
DC link above the maximum value:
− Ud > 1000 V - Models 500-600 V (P0296 = 5,
6 and 7).
− Ud > 1200 V - Models 660-690 V (P0296 = 8).
„
Driven load inertia too high or deceleration ramp
too fast.
„
Setting of P0151 or P0153 or P0185 too high.
F030:
(1)
Arm U Fault
Desaturation on the IGBTs of arm U.
„
Short circuit between phases U and V or U and
W of the motor.
F034:
(1)
Arm V Fault
Desaturation on the IGBTs of arm V.
„
Short circuit between phases V and U or V and
W of the motor.
F038:
(1)
Arm W Fault
Desaturation on the IGBTs of arm W.
„
Short circuit between phases W and U or W and
V of the motor.
A046:
High Load on the Motor Motor overload alarm.
Note:
- It can be disabled by setting P0348 = 0 or 2.
„
Setting of P0156, P0157 and P0158 too low for
the motor.
„
Overload on the motor shaft.
A047:
Overload on the IGBTs IGBT overload alarm.
Note:
- It may be disabled by setting P0350 = 0 or 2.
„
High current in the inverter output.
F048:
Overload on the IGBTs IGBT overload fault
„
Current in the inverter output too high.
F067:
Encoder /Motor Wiring Is
Inverted Fault linked to the phase relation of the encoder
signals, if P0202 = 4 and P0408 = 2, 3 or 4.
Note:
- This error can only occur during self-tuning.
- This fault cannot be reset.
- In this case, de-energize the inverter, solve the
problem and then energize it.
„
U, V, W wiring to the motor is inverted.
„
Encoder channels A and B are inverted.
„
Error in the encoder assembly position.
F070:
Overcurrent/
Short circuit Overcurrent or short circuit in the output, DC link or
braking resistor.
„
Short circuit between two motor phases.
„
Short circuit of the connecting cables of the
dynamic braking.
F071:
Overcurrent in the Output Output overcurrent fault.
„
Load inertia too high or acceleration ramp too
fast.
„
Setting of P0135 or P0169, P0170, P0171 and
P0172 too high.
F072:
Motor Overload Motor overload fault.
Note:
- It can be disabled by setting P0348 = 0 or 3.
„
Setting of P156, P157 and P158 too low for the
motor.
„
Load on the motor shaft is too high.
F074:
Ground Fault Ground overcurrent fault.
Note:
- It may be disabled by setting P0343 = 0.
„
Short circuit to the ground in one or more output
phases.
„
Motor cable capacitance too high, causing
current peaks in the output.
(4)
F076:
Motor Current Unbalance Motor current imbalance fault.
Note:
- It may be disabled by setting P0342 = 0.
„
Poor contact or interrupted wiring in the
connection between the inverter and the motor.
„
Vector control with orientation loss.
„
Vector control with encoder, wiring of the encoder
or connection to the motor inverted.