WEG CFW-11 Programming Manual page 47

Fault/Alarm
A402 Phase U book 5 current unbalance alarm.
(10)
Current Unbalance at It indicates a 20 % unbalance in the current
Phase U B5 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A403 Phase V book 5 current unbalance alarm.
(10)
Current Unbalance at It indicates a 20 % unbalance in the current
Phase V B5 distribution between this phase and the smallest
current of the same phase in other book, only when
the current in this phase is higher than 75 % of its
nominal value.
A404 Phase W book 5 current unbalance alarm.
(10)
Current Unbalance at It indicates a 20 % unbalance in the current distribution
Phase W B5 between this phase and the smallest current of the same
phase in other book, only when the current in this phase
is higher than 75 % of its nominal value.
F406 Indications related to the settings of parameters
(10)
Overtemperature P0832 and P0833.
Brake Module
F408
(10)
Refrigeration System Fault
F410
(10)
IPS External Fault
F412
(10)
Rectifier
Overtemperature
F414
(10)
External Rectifier Fault
F416 Fault of current imbalance on the IGBTs.
(15)
IGBT Curr. Imb. Fault
F418 Fault of overtemperature of the internal air on the
(15)
Air Control Overtemp. control board.
A415 Indications related to the settings of parameters
(10)
External Rectifier High P0832 and P0833.
Temperature
A417 Alarm of power module temperature imbalance.
(15)
Thermal Imbalance
A419 Alarm of overtemperature of the internal air on the
(15)
Control Air Temperature control board.
High Alarm
A700 Alarm or fault related to the HMI disconnection.
(11)
Detached HMI
F701
(11)
Detached HMI
A702 Alarm indicating that the General Enable command
(11)
Inverter Disabled is not active.
A704 Two movements have been enabled.
(11)
Two Movements Enabled
A706 Speed reference not programmed for SoftPLC .
(11)
Speed Reference Not
Programmed for SoftPLC
Quick Parameter Reference, Faults and Alarms
Description Possible Causes
Bad electric connection between the DC bus and the
power unit.
Bad electric connection between the power unit output
and the motor.
Note: In case of fast acceleration or braking, one of these
alarms may be indicated momentarily, disappearing after
3 seconds. This is not an indication of any anomaly in the
inverter.
If the alarm persists when the motor is operating at a constant
speed, it is an indication of an anomaly in the current
distribution among the power units.
Braking module cooling failure.
The load inertia is too high or the deceleration ramp is
too fast.
The load at the motor shaft is too high.
Pump failure (water-cooled drive systems).
Cabinet ventilation failure.
Note: Check the fan control system used in the application.
Open DIM1 or DIM2. Check the fan control system used
in the application.
High rectifier surrounding temperature (> 45 ºC (113 °F))
and high output current.
Rectifier cooling problem.
Very dirty rectifier heatsink.
Undervoltage or phase loss at the rectifier input.
Voltage imbalance at the rectifier input > 5 %.
Incorrect UR11 unit DIP-switches settings.
IGBTs of the same phase presented a current imbalance
above 15 %.
Temperature of the internal air of the control board is
above 85 °C (185 °F).
High rectifier surrounding temperature (> 45 ºC (113 °F))
and high output current.
Very dirty rectifier heatsink.
The temperature difference between IGBT modules of the
same phase (U, V, W) was above 10 °C (50 ° F).
The temperature difference between IGBT modules of
different phases (U and V, U and W, V and W) was above
10 °C (50 ° F). The temperature difference between
rectifier modules of different phases (R and S, R and T, S
and T) was above 10 °C (50 °F).
When the temperature of the internal air of the control
board is above 70 °C (158 °F).
RTC function block has been activated in the applicative
and the HMI is disconnected from the inverter.
The SoftPLC Run/Stop command is equal to Run or a
movement block has been enable while the inverter is
general disabled.
It occurs when two or more movement blocks are enabled
simultaneously.
It occurs when a movement block has been enabled and
the speed reference has not been configured for SoftPLC
(check P0221 and P0222).
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