WEG CFW100 V2.4X Referencia Rápida página 25

Fault / Alarm
F084 Fault related to the automatic
Auto-diagnosis identification algorithm of the inverter
Fault hardware.
F091 External fault via DIx ("No External
External Fault Fault" in P26x).
F228 Indicates fault in the serial
Timeout in receipt communication. It indicates the
of telegrams equipment stopped receiving valid
serial telegrams for a period longer
than the setting in P314.
F233 It indicates that the CAN interface has
No power supply no power supply between pins 1 and 5
on the CAN of the connector.
interface
F234 Buss off error detected on the CAN
Bus Off interface.
F235 CANopen communication error control
Node Guarding/ detected communication error using
Heartbeat the guarding mechanism.
Quick Reference of Parameters, Alarms and Faults
Description Possible Causes
„
Poor contact in the connection between the
main control anthe power pack.
„
Hardware not compatible with the firmware
version.
„
Defect on the internal circuits of the inverter.
„
Wiring on DI1 to DI4 inputs are open or have
poor contact.
„ Check network installation, broken cable or
fault/poor contact on the connections with the
network, grounding.
„ Ensure the master always sends telegrams
to the equipment in a time shorter than the
setting in P314.
„
Disable this function in P314.
„
Measure if there is voltage within the allowed
range between pins 1 and 5 of the CAN interface
connector.
„ Check if the power supply cables are not
misconnected or inverted.
„
Check for contact problems on the cable or
connector of the CAN interface.
„
Check for short circuit on the CAN circuit
transmission cable.
„ Check if the cables are not misconnected
or inverted.
„
Check if all the network devices use the same
baud rate.
„ Check if the termination resistors with the right
specification were installed only at the end of
the main bus.
„ Check if the CAN network was properly installed.
„
Check the times set on the master and on the
slave for message exchange. In order to prevent
problems due to transmission delays and time
counting, it is recommended that the values set
for error detection by the slave be multiples of the
times set for message exchange on the master.
„ Check if the master is sending the guarding
telegrams in the time set.
„
Check problems in the communication that may
cause missing telegrams or transmission delays.
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