WEG CFW-11 Series User Manual page 69

Troubleshooting and Maintenance
Fault/Alarm
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
6
Timeout
A138: (1)
Profibus DP Interface in
Clear Mode
A139:
(1)
Offline Profibus DP
Interface
A140:
(1)
Profibus DP Module
Access Error
F150:
Motor Overspeed
F151:
FLASH Memory Module
Fault
6-4
Table 6.1 (cont.) - Faults, alarms and possible causes
Description
A failure in the communication between the
HMI and the control board.
External alarm via digital input.
Note:
It is necessary to set a digital input for "No
external alarm".
External fault via digital input.
Note:
It is necessary 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 necessary to set an analog input / output
to the PTC function.
Indicates that the inverter stopped receiving
valid telegrams 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 the bus-off
state.
Alarm that indicates a communication error.
Network master has entered the idle state.
DeviceNet I/O connection timeout alarm.
It indicates that the inverter received a
command from the Profibus DP network master
to enter the clear mode.
It indicates an interruption in the
communication between the Profibus DP
network master and the inverter.
It indicates an error in the access to the Profibus
DP communication module data.
Overspeed fault.
It is activated when the real speed exceeds the
value of P0134 x (100 % + P0132) for more
than 20 ms.
FLASH Memory Module (MMF-01) fault.
Possible Causes
Keypad cable bad connection.
Electrical noise in the installation.
Open wiring at digital inputs (DI1 to DI8) programmed for "No
external alarm".
Open wiring at digital inputs (DI1 to DI8) programmed for "No
external fault".
Defect in the inverter internal circuitry.
Excessive load at the motor shaft.
Too heavy duty cycle (too many starts / stops per minute).
Too high motor surrounding air temperature.
Motor thermistor is not installed.
Blocked motor shaft.
Check the wiring and grounding installation.
Make sure the inverter has sent a new telegram within the time
interval set at P0314.
The PLC has entered 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 incorrectly installed Anybus-CC
module.
Conflict with a WEG option board.
Broken or loose cable.
Power supply is off.
Incorrect 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 the
timeout state.
Verify the network master status, making sure it is in execution
mode (Run).
Refer to the Profibus DP communication manual for more
information.
Verify whether the network master is correctly configured and
operating normally.
Verify the network installation in a general manner - cable
routing, grounding.
Refer to the Profibus DP communication manual for more
information.
Verify whether the Profibus DP module is correctly fit into the slot 3.
Refer to the Profibus DP communication manual for more
information.
Wrong settings of P0161 and/or P0162.
Problem with the hoist-type load.
Defective FLASH memory module.
FLASH memory module is not connected properly.