WEG CFW700, Programming And Troubleshooting Manual

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Quick Parameter Reference, Faults and Alarms
CFW700 | 0-19
Fault/Alarm Description Possible Causes
F150:
Motor Overspeed Overspeed fault.
It trips when the actual speed exceeds the value
of P0134 x (100 % + P0132)
100%
for more than 20 ms.
„
Wrong settings of P0161 and/or P0162.
„
Problem with a hoist-type load.
F151:
FLASH Memory Module
Fault FLASH Memory Module (MMF-01) fault.
„
Defective FLASH memory module.
„
Check the connection of the FLASH memory module.
A152:
High Internal Air
Temperature This alarm indicates that the internal air
temperature is too high.
Note:
It can be disabled by setting P0353 = 1 or 3.
„
High surrounding air temperature (>50 °C (122 °F)) and
high output current.
„
Defective internal fan (if existent).
„
High temperature (> 45 ºC) inside the cabinet.
F153:
Internal Air
Overtemperature It indicates internal air overtemperature fault.
„
High surrounding air temperature (>50 °C (122 °F)) and
high output current.
„
Defective internal fan (if existent).
F156:
Undertemperature The temperature sensors located in the IGBTs or
in the rectifier detected a low temperature, below
-30 °C ( -22 °F), fault.
„
Surrounding air temperature ≤ -30 °C (-22 °F).
F157:
Parameter Table Data
Loss There was a problem during the initialization,
during the parameter table loading routine. Some
recent parameter modifications may have been
lost.
„
The control was switched off very fast while a parameter
was being modified.
F158:
Parameter Table Fault
There was a problem during the initialization,
during the parameter table loading routine. All
the parameters were lost and the factory settings
were loaded.
„
Firmware updating fault.
„
Defective control board.
F160:
Safety Stop Relays Safety stop relay fault.
„
One of the relays is defective or it does not have +24 V
applied to its coil.
A163:
AI1 Broken Cable It indicates that the AI1 current (4-20 mA or
20-4 mA) reference is out of the 4 to 20 mA range.
„
Broken AI1 cable.
„
Bad contact at the connection of the signal to the
terminal strip.
A164:
AI2 Broken Cable It indicates that the AI2 current (4-20 mA or
20-4 mA) reference is out of the 4 to 20 mA range.
„
Broken AI2 cable.
„
Bad contact at the connection of the signal to the
terminal strip.
A170:
Safety Stop The Safety Stop function is active.
„
The CFW700 went to the STO state.
A177:
Fan Replacement Fan replacement alarm (P0045 > 50000 hours).
Note:
This function can be disabled by setting
P0354 = 0.
„
The heatsink fan maximum number of operating hours
has been reached.
F179:
Heatsink Fan Speed
Fault This fault indicates a problem with the heatsink fan.
Note:
This function can be disabled by setting
P0354 = 0.
„
Dirt on the blades and in the bearings of the fan.
„
Defective fan.
„
Defective fan power supply connection.
F182:
Pulse Feedback Fault It indicates a fault in the output pulses feedback.
„
Defect in the inverter internal circuitry.
F183:
IGBT Ov
Temperature Overtemperature related to the IGBT overload
protection.
„
Too high inverter surrounding temperature.
„
Operation with frequencies < 10 kHz with overload.
F185:
Pre-Charge Contactor
Fault It indicates a fault at the pre-charge contactor.
„
Defective pre-charge contactor.
„
Open command fuse.
„
Phase loss at the L1/R or L2/S input.
F228:
Serial Communication
Timeout Refer to the RS-232 / RS-485 Serial Communication Manual.
F233:
CAN interface without
power supply
„
Refer to the CANopen Communication Manual and/or the DeviceNet Communication Manual.
F234:
Bus Off
F235:
CANopen
Communication Error
„
Refer to the CANopen Communication Manual.