WEG CFW-11 Programming Manual page 34

Quick Parameter Reference, Faults and Alarms
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Fault/Alarm
F079:
Encoder Signal Fault
F080:
CPU Watchdog
F082:
Copy Function Fault
F084:
Auto-diagnosis Fault
A088:
Keypad Comm. Fault
A090:
External Alarm
F091:
External Fault
F099:
Invalid Current Offset
A110:
High Motor
Temperature
A128:
Timeout for Serial
Communication
A129:
Anybus is Offline
A130:
Anybus Access Error
A133:
CAN Not Powered
A134:
Bus Off
A135:
CANopen
Communication Error
A136:
Idle Master
A137:
DNet Connection Timeout
F150:
Motor Overspeed
F151:
FLASH Memory Module
Fault
A152:
Internal Air High
Temperature
0-28
Description
Lack of encoder signals.
Microcontroller watchdog fault.
Fault while copying parameters.
Auto-diagnosis fault.
Indicates a problem between the keypad and control
board communication.
External alarm via digital input.
Note:
It is required to set a digital input to "No external
alarm".
External fault via digital input.
Note:
It is required to set a digital input to "No external
fault".
Current measurement circuit is measuring a wrong
value for null current.
Alarm related to the PTC temperature sensor installed
in the motor.
Note:
- It may be disabled by setting P0351=0 or 2.
- It is required to set the analog input / output to the
PTC function.
Indicates that the inverter stopped receiving valid
messages within a certain time interval.
Note:
It may be disabled by setting P0314=0.0 s.
Alarm that indicates interruption of the Anybus-CC
communication.
Alarm that indicates an access error to the
Anybus-CC communication module.
Alarm indicating that the power supply was not
connected to the CAN controller.
Inverter CAN interface has entered into the bus-off
state.
Alarm that indicates a communication error.
Network master has entered into the idle state.
I/O connection timeout - DeviceNet communication
alarm.
Overspeed fault.
It is activated when the real speed exceeds the value
of P0134+P0132 for more than 20 ms.
FLASH Memory Module fault (MMF-01).
Alarm indicating that the internal air temperature is
too high.
Note:
It may be disabled by setting P0353=1 or 3.
Possible Causes
Broken wiring between motor encoder and option kit for
encoder interface.
Defective encoder.
Electrical noise.
An attempt to copy the keypad parameters to an inverter
with a different firmware version.
Defect in the inverter internal circuitry.
Loose keypad cable connection.
Electrical noise in the installation.
Wiring was not connected to the digital input (DI1 to DI8)
set to "No external alarm".
Wiring was not connected to the digital input (DI1 to DI8)
set to "No external fault".
Defect in the inverter internal circuitry.
Excessive load at the motor shaft.
Excessive duty cycle (too many starts / stops per minute).
Surrounding air temperature too high.
Loose connection or short-circuit (resistance < 100 Ω) in
the wiring connected to the motor termistor.
Motor termistor is not installed.
Blocked motor shaft.
Check the wiring and grounding installation.
Make sure the inverter has sent a new message within the
time interval set at P0314.
PLC entered into the idle state.
Programming error. Master and slave set with a different
number of I/O words.
Communication with master has been lost (broken cable,
unplugged connector, etc.).
Defective, unrecognized, or improperly installed Anybus-CC
module.
Conflict with a WEG option board.
Broken or loose cable.
Power supply is off.
Incorrect communication baud-rate.
Two nodes configured with the same address in the network.
Wrong cable connection (inverted signals).
Communication problems.
Wrong master configuration/settings.
Incorrect configuration of the communication objects.
PLC in IDLE mode.
Bit of the PLC command register set to zero (0).
One or more allocated I/O connections have entered
into the timeout state.
Wrong settings of P0161 and/or P0162.
Problem with the hoist-type load.
Defective FLASH memory module.
Check the connection of the FLASH memory module.
Surrounding air temperature too high (>50 °C (122 °F))
and excessive output current.
Defective internal fan (if installed).
Note (CFW-11M):
High temperature inside the panel (>45 °C).