Igbts Overload Protection (F0048 And A0047) - WEG CFW501 V1.8X Programming Manual

Faults and Alarms

14.2 IGBTS OVERLOAD PROTECTION (F0048 AND A0047)

The CFW501 IGBTs overload protection uses the same motor protection format. However, the project point was
modified for the fault F0048 to occur in three seconds for 200 % of overload in relation to the inverter rated current
(P0295), as shown in
IGBTs overload (F0048) has no actuation for levels below 150 % of the inverter rated current (P0295).
Before the actuation of fault F0048, the inverter can indicate alarm A0047 when the IGBTs overload level is above
the value programmed in P0349.
The IGBTs overload protection can be disabled through parameter P0343.
2.5
1.5
0.5
P0343 – Mask for Faults and Alarms
Adjustable
Range:
14
Properties:
Description:
Parameter P0343 allows deactivating some faults and alarms specific of the inverter, by means of a bit mask, a
binary number is formed, where the "Bit" equivalent to "0" disables the respective fault or alarm.
Note that the numeric representation of P0343 is hexadecimal.
ATTENTION!
Disabling the ground fault or overload protections may damage the inverter. Only do that under
WEG technical directions.
14-4 | CFW501
Figure 14.2: Actuation of the overload of the IGBTs on page
3
2
1
0
0 5
Figure 14.2: Actuation of the overload of the IGBTs
0000 to FFFFh
Bit0 = F0074
Bit1 = F0048
Bit2...3 = Reserved
Bit4 = F0076
Bit5...15 = Reserved
cfg
Region of overload
10 15 20
Time(s)
14-4. On the other hand, the
25 30
Factory 0003h
Setting: