WEG CFW100 Referencia Rápida página 21

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Fault / Alarm
A046
Motor Overload
A050
Power Module
Overtemperature
A090
External Alarm
A128
Telegram
Reception
Timeout
A133
No power supply
on the CAN
interface
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Quick Reference of Parameters, Alarms and Faults
Description
Motor overload alarm.
Overtemperature alarm from the power
module temperature sensor (NTC).
External alarm via DIx (option "No
External Alarm" in P26x).
Alarm that indicates serial communication
fault. It indicates the equipment stopped
receiving valid serial telegrams for a period
longer than the setting in P314.
It indicates that the CAN interface has
no power supply between pins 1 and 5
of the connector.
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Possible Causes
„
Settings of P156 is too low for the used motor.
„ Overload on the motor shaft.
„
High temperature at IGBTs (P030 > 110 °C).
„
High ambient temperature around the inverter
(>50 °C (> 122 °F)) and high output current.
„
Blocked or defective fan.
„
Heatsink is too dirty, preventing the air flow.
„ 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.
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