Link Voltage Supervision (F021 And F022); W Control Mode Self-Tuning Fault (F033); Remote Hmi Communication Fault Alarm (A700); Remote Hmi Communication Error Fault (F701) - WEG CFW100 Programming Manual

13.4 LINK VOLTAGE SUPERVISION (F021 AND F022)

The DC link voltage is constantly compared to the maximum and minimum values according to the inverter power
supply, as shown in Table 13.2 on page
13.5 V V W CONTROL MODE SELF-TUNING FAULT (F033)
If we set the motor stator resistance (P409) to a value too high in relation to the used inverter, the inverter will
indicate fault F033.

13.6 REMOTE HMI COMMUNICATION FAULT ALARM (A700)

After connecting the remote HMI to the CFW100 terminals, the communication with the HMI is supervised so that
alarm A700 is activated whenever this communication link is broken.

13.7 REMOTE HMI COMMUNICATION ERROR FAULT (F701)

The condition for fault F701 is the same as that of alarm A700, but it is necessary that the HMI be the source
for some command or reference (HMI Keys option) in parameters P220 to P228.

13.8 AUTO-DIAGNOSIS ALARM (A084)

During the programming of the inverter, or before starting loading the factory default (P204 = 5 or 6), the inverter
identifies the power hardware in order to obtain information on the module voltage, current and trigger, the power
module.
Alarm A084 indicates something wrong happened during the identification of the hardware: nonexistent inverter
model, some loose connection cable or damaged internal circuit.
NOTE!
When this alarm occurs, contact WEG.

13.9 FAULT IN THE CPU (F080)

The execution of the inverter firmware is monitored at several levels of the firmware internal structure. When some
internal fault is detected in the execution, the inverter will indicate F080.
NOTE!
When this fault occurs, contact WEG.

13.10 SAVE USER FUNCTION FAULT (F081)

This fault occurs during the attempt to save (P204 = 9) more than 32 parameters with values different from the
factory default (P204 = 5 or 6) or the Save User function is protected against writing.

13.11 COPY FUNCTION FAULT (F082)

In case the flash memory module (MMF) has been previously loaded with parameters of a "different" version from
that of the inverter to which it is trying to copy the parameters, the operation will not be executed and the HMI will
indicate fault F082. It is considered a "different" version those which are different in "x" or "y", assuming that the
number of the software versions are represented as Vx.yz.
13-3.
Table 13.2: Levels of performance monitoring the voltage of the DC link
Supply Level F021
100 to 120 Vac 230 Vdc
200 to 240 Vac 200 Vdc
Return
Level F022
460 Vdc
410 Vdc
Advance
Faults and Alarms
CFW100 | 13-3
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