WEG CFW-11 User Manual page 68

Troubleshooting and Maintenance
Fault/Alarm
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
F153:
Internal Air
Overtemperature
F156:
Undertemperature
A177:
Fan Replacement
F179:
Heatsink Fan Speed
Fault
A181:
Invalid Clock Value
6
F182:
Pulse Feedback Fault
F183:
IGBT overload +
Temperature
F185
Pre-charge Contactor
Fault
(1) Very long motor cables (longer than 100 meters) present a high parasite capacitance against the ground. The circulation of parasite currents
through those capacitances may cause the ground fault circuit activation and thus disabling the inverter with F074, immediately after the inverter
enabling. Possible solutions:
- Decrease the carrier frequency (P0297).
- Install an output reactor between the inverter and the motor.
6-4
Table 6.1 (cont.) - Faults, alarms and possible causes
Description
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.
Internal air overtemperature fault.
Undertemperature fault, measured at the IGBT
temperature sensors.
Heatsink fan replacement alarm (P0045 > 50000
hours).
Note:
This function may be disabled by setting P0354=0.
Heatsink fan speed feedback fault.
Note:
This function may be disabled by setting P0354=0.
Invalid clock value alarm.
Indicates a fault on the output pulses feedback.
Overtemperature related to the IGBTs overload
protection.
Fault in the pre-charge contactor circuit.
Possible Causes
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 (>45 °C (113 °F)) and
excessive output current.
Defective internal fan.
Surrounding air temperature ≤ -30 °C (-22 °F).
Maximum number of operating hours for the heatsink fan
has been reached.
Dirt at the heatsink fan blades and ball bearings.
Heatsink fan defect.
It is necessary to set date and time at parameters P0194 to
P0199.
Keypad battery is discharged, defective, or not installed.
Defect in the inverter internal circuitry.
Surrounding air temperature too high.
Operation with overload at frequencies below 10 Hz –
consider the table 8.1 to 8.5 values according to the used
switching frequency.
Open command fuse. Refer to section 3.2.3.1.2.
Phase loss at the input in L1/R or L2/S.
Defect in the pre-charge contactor and/or related circuit.