WEG CFW501 V1.8X, Programming Manual, Page: 140 / 192

Faults and Alarms
14-4 | CFW501
14
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
Figure 14.2: Actuation of the overload of the IGBTs on page 14-4 . On the other hand, the
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.
0 5 10 15 20 25 30
3
2.5
2
1.5
1
0.5
0
Ou
tp
ut
c
ur
ren
t /
O
ver
lo
ad
c
ur
ren
t %
Region of overload
Time(s)
Figure 14.2: Actuation of the overload of the IGBTs
P0343 – Mask for Faults and Alarms
Adjustable
Range:
0000 to FFFFh
Bit0 = F0074
Bit1 = F0048
Bit2...3 = Reserved
Bit4 = F0076
Bit5...15 = Reserved
Factory
Setting:
0003h
Properties:
cfg
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.