Quick Parameter Reference, Faults and Alarms
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0
Fault/Alarm
Description
Possible Causes
F076
Motor Current
Imbalance
Fault of motor current unbalance.
Note:
It may be disabled by setting P0342 = 0.
Loose connection or broken wiring between the motor
and inverter connection.
Vector control with wrong orientation.
Vector control with encoder, encoder wiring or encoder
motor connection inverted.
F077
DB Resistor Overload
The dynamic braking resistor overload protection
operated.
Excessive load inertia or desacceleration time too short.
Motor shaft load is excessive.
Wrong setttings for parameters P0154 and P0155.
F078
Motor
Overtemperature
Fault related to the PTC temperature sensor installed
in the motor.
Note:
- It may be disabled by setting P0351 = 0 or 3.
- It is required to set the analog input / output to the
PTC function.
Excessive load at the motor shaft.
Excessive duty cycle (too many starts / stops per minute).
High ambient temperature around the motor.
Loose connection or short-circuit (resistance < 100 Ω) in
the wiring connected to the motor termistor.
Motor termistor is not installed.
Blocked motor shaft.
F079
Encoder Signal Fault
Lack of encoder signals.
The fault can be disabled via switches of the ENC1,
ENC2 board.
Broken wiring between encoder interface.
Defective encoder.x
Encoder accessory defective or not well installed on the
product, and control configured for vector with encoder.
F080
CPU Watchdog
Microcontroller watchdog fault.
Electrical noise.
F082
Copy Function Fault
Fault while copying parameters.
An attempt to copy the keypad parameters to an inverter
with a different firmware version.
F084
Auto-diagnosis Fault
Auto-diagnosis fault.
Defect in the inverter internal circuitry.
A088
Communication Lost
Indicates a problem between the keypad and control
board communication.
Loose keypad cable connection.
Electrical noise in the installation.
A090
External Alarm
External alarm via digital input.
Note:
It is required to set a digital input to "No external
alarm".
Wiring was not connected to the digital input (DI1 to DI8)
set to "No external alarm".
F091
External Fault
External fault via digital input.
Note:
It is required to set a digital input to "No external
fault".
Wiring was not connected to the digital input (DI1 to DI8)
set to "No external fault".
F099
Invalid Current Offset
Current measurement circuit is measuring a wrong
value for null current.
Defect in the inverter internal circuitry.
A110
High Motor
Temperature
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.
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.
A128
Timeout for Serial
Communication
Indicates that the inverter stopped receiving valid
messages within a certain time interval.
Note:
It may be disabled by setting P0314 = 0.0 s.
Check the wiring and grounding installation.
Make sure the inverter has sent a new message within the
time interval set at P0314.
A129
Anybus is Offline
Alarm that indicates interruption of the Anybus-CC
communication.
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.).
A130
Anybus Access Error
Alarm that indicates an access error to the
Anybus-CC communication module.
Defective, unrecognized, or improperly installed Anybus-CC
module.
Conflict with a WEG option board.
A133
CAN Not Powered
Alarm indicating that the power supply was not
connected to the CAN controller.
Broken or loose cable.
Power supply is off.
A134
Bus Off
Inverter CAN interface has entered into the bus-off
state.
Incorrect communication baud-rate.
Two nodes configured with the same address in the network.
Wrong cable connection (inverted signals).
A135
CANopen
Communication Error
Alarm that indicates a communication error.
Communication problems.
Wrong master configuration/settings.
Incorrect configuration of the communication objects.
A136
Idle Master
Network master has entered into the idle state.
PLC in IDLE mode.
Bit of the PLC command register set to zero (0).
A137
DNet Connection Timeout
I/O connection timeout - DeviceNet communication
alarm.
One or more allocated I/O connections have entered
into the timeout state.
Summary of Contents for CFW-11 Series
Page 2: ......
Page 54: ...2 4 2 General Information ...
Page 58: ...About the CFW 11 3 3 4 ...
Page 74: ...Inverter Model and Accessories Identification 5 14 6 ...
Page 86: ...Inverter Model and Accessories Identification 6 12 6 ...
Page 94: ...Available Control Types 8 2 8 ...
Page 118: ...VVW Control 10 8 10 ...
Page 182: ...Functions Common to All the Control Modes 12 26 12 ...
Page 220: ...Dynamic Braking 14 4 14 ...