WEG CF W501 V1.8X Referencia Rápida página 25

Fault / Alarm
A0788 Alarm that indicates the process
High Level of the variable of the external PID controller
Process Variable has a high value.
of the External PID
Controller
F0021 Undervoltage fault on the intermediate
Undervoltage on circuit.
the DC Link
F0022 Overvoltage fault on the intermediate
Overvoltage on the circuit.
DC Link
F0031
Main control cannot set a
Communication communication link with the Plug-In
fault with Plug-In module.
module
F0033 Stator resistance setting fault P0409.
V V W self-tuning
fault
F0048
Overload fault on the power pack with
Overload on the IGBTs (3 s in 1.5xInom).
IGBTs Note:
This failure may be disabled, by setting
P0343 = 0 or 1.
F0051
Overtemperature fault measured on
IGBTs the temperature sensor of the power
overtemperature pack.
F0070 Overcurrent or short- circuit on the
Overcurrent/Short- output, DC link or braking resistor.
circuit
F0072 Motor overload fault (60 s in 1.5xInom)
Motor overload
F0074 Ground overcurrent fault.
Note:
Ground fault
This failure may be disabled, by setting
P0343 = 0 or 2.
Quick Parameter Reference, Faults and Alarms
Description Possible Causes
Parameter P1075 is programmed for 1 and the value
„
of the process variable of the external PID controller
remained above the value programmed in P1078 for
the time programmed in P1079.
Wrong voltage supply; check if the data on the
„
inverter label comply with the power supply and
parameter P0296.
Supply voltage too low, producing voltage on the DC
„
link below the minimum value (in P0004):
Ud < 200 Vdc in 200-240 Vac (P0296 = 0).
„
Ud < 360 Vdc in 380-480 Vac (P0296 = 1).
„
Ud < 500 Vdc in 500-600 Vac (P0296 = 2).
„
Phase fault in the input.
„
Fault in the pre-charge circuit.
„
Wrong voltage supply; check if the data on the
„
inverter label comply with the power supply and
parameter P0296.
Supply voltage is too high, producing voltage on the
„
DC link above the maximum value (in P0004):
Ud > 410 Vdc in 200-240 Vac (P0296 = 0).
„
Ud > 810 Vdc in 380-480 Vac (P0296 = 1).
„
Ud > 1000 Vdc in 500-600 Vac (P0296 = 2).
„
Load inertia is too high or deceleration ramp is too fast.
„
P0151 or P0153 setting is too high.
„
Plug-In module is damaged.
„
Plug-In module is not properly connected.
„
Problem in the identification of the Plug-In module;
„
refer to P0027 for further information.
Stator resistance value in P0409 does not comply
„
with the inverter power.
Motor connection error; turn off the power supply and
„
check the motor terminal box and the connections
with the motor terminals.
Motor power too low or too high in relation to the inverter.
„
Inverter output overcurrent (>2xInom).
„
High ambient temperature around the inverter (>50 °C
„
(>122 °F)) and high output current.
Blocked or defective fan.
„
Heatsink is too dirty, preventing the air flow.
„
Short- circuit between two motor phases.
„
Short- circuit of the rheostatic braking resistor
„
connecting cables.
IGBTs module in short- circuit or damaged.
„
Start with too short acceleration ramp.
„
Start with motor spinning without the flying-start
„
function.
P0156, P0157 and P0158 setting is too low in relation
„
to the motor operating current.
Overload on the motor shaft.
„
Short-circuit to the ground in one or more output
„
phases.
Motor cable capacitance too high, causing current
„
peaks in the output.
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