WEG CFW-11 RB User Manual page 70

Fault/Alarm
F074 A ground fault occured.
Ground Fault Note:
It may be disabled by setting P0343 = 0.
F080 Microcontroller watchdog fault.
CPU Watchdog
F082
Fault while copying parameters.
Copy Function Fault
F084 Auto-diagnosis Fault.
Auto-diagnosis Fault
A088 Indicates a problem with the keypad and
HMI Communication Lost control board communication.
A090
External alarm via digital input.
External Alarm Note:
It is required to set a digital input to "No
external alarm".
F091
External fault via digital input.
External Fault Note:
It is required to set a digital input to "No
external fault".
F099
Current measurement circuit is measuring a
Invalid Current Offset wrong value for null current.
F101 Offset calculation error when reading the
Invalid Voltage Offset input voltage (synchronism).
A105 Alarm for the reactive current injection in
Reactive Injection in the the power supply.
Power Supply
F151 Flash Memory Module fault (MMF-01).
Flash Memory Module
Fault
A152 Alarm indicating that the internal air
Internal Air High temperature is too high.
Temperature Note:
It may be disabled by setting P0353 = 1
or 3.
F153 Internal air overtemperature fault.
Internal Air
Overtemperature
A155 Only one sensor indicates temperature
Undertemperature below -30°C.
F156
Undertemperature fault below -30 °C (-22
Undertemperature °F) in the IGBTs or rectifier measured by the
temperature sensors.
F174
Fault on the heatsink left fan speed.
Left Fan Speed Fault
F175 Fault on the heatsink center fan speed.
Center Fan Speed Fault
F176 Fault on the heatsink right fan speed.
Right Fan Speed Fault
A177 Fan replacement alarm (P0045 > 50000
Fan Replacement hours).
Note:
This function may be disabled by setting
P0354 = 0.
A178
Alarm on the heatsink fan speed.
Fan Speed Alarm
F179 Fan speed is under the minimum limit.
Heatsink Fan Speed Fault
A181 Invalid clock value alarm.
Invalid Clock Value.
F182 Pulse feedback fault.
Pulse Feedback Fault
Description
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
„
Troubleshooting and Maintenance
Possible Causes
+UD or -UD short-circuit to ground.
Electrical noise.
An attempt to copy the keypad parameters to an converter
with a different firmware version.
Defect in the converter internal circuitry.
Loose keypad cable connection.
Electrical noise in the installation.
Wiring was not connected to the digital input (DI1 to DI8)
set to "No external alarm").
Wiring was not connected to the digital input (DI1 to DI8)
set to "No external fault".
Defect in the converter internal circuitry.
Main contactor closed before the pre-charge is complete.
CPU has reset and the main contactor did not open.
Voltage power supply much higher than the rated voltage.
P0180 too low.
Defective flash memory module.
Check the connection of the flash memory module.
Surrounding air temperature too high (> 40 °C or 50 °C
(104 °F or 122°F) according to the model - refer to
3.1 MECHANICAL INSTALLATION on page
excessive output current.
Blocked or defective fan.
Fins of the book heatsink too dirty, impairing the air flow.
Surrounding air temperature ≤ -30 °C (-22 °F).
Surrounding air temperature ≤ -30 °C (-22 °F).
Defective internal circuitry of the power modules (supply,
cables).
Dirt on the blades and rolling bearings of the fan.
Defective fan.
Defective fan power supply connection.
Maximum number of operating hours for the heatsink fan
has been reached.
Dirt on the blades and rolling bearings of the fan.
Defective fan.
Defective fan power supply connection.
The fan is dirt or blocked.
It is necessary to set date and time at parameters P0194
to P0199.
Keypad battery is discharged, defective, or not installed.
Defective converter internal circuitry.
Section
3-1) and
6
CFW-11 RB | 6-3