Faults and Alarms
14-6 | CFW501
14
14.4 IGBTS OVERTEMPERATURE PROTECTION (F0051 AND A0050)
The power module is monitored and indicated in parameter P0030 in degrees Celsius. This value is constantly
compared to the overtemperature fault and alarm trigger value of the power module F0051 and A0050, according
to
Table 14.2: Overtemperature actuation levels of the power module F0051 on page 14-6
. where the level for
actuation of the alarm A0050 is fixed at 5 ºC below the level of F0051.
Table 14.2:
Overtemperature actuation levels of the power module F0051
Frame
Model
Level F0051
Frame A
1.6 A / 200 V
80 °C
2.6 A / 200 V
80 °C
4.3 A / 200 V
80 °C
7.0 A / 200 V
93 °C
9.6 A / 200 V
100 °C
1.0 A / 400 V
97 °C
1.6 A / 400 V
97 °C
2.6 A / 400 V
97 °C
4.0 A / 400 V
97 °C
6.1 A / 400 V
123 °C
Frame B
7.3 A / 200 V
85 °C
10 A / 200 V
95 °C
16 A / 200 V
110 °C
2.7 A / 400 V
105 °C
4.3 A / 400 V
105 °C
6.5 A / 400 V
105 °C
10 A / 400 V
110 °C
Frame C
24 A / 200 V
120 ºC
14 A / 400 V
110 ºC
16 A / 400 V
110 °C
Besides the alarm indication A0050, the overtemperature protection automatically reduces the switching frequency
(P0297) for the value of 2500 Hz when the temperature (P0030) reaches 80 % of the F0051 level and the output
current (P0003) is above the rated current (P0295). This overtemperature protection function can be deactivated
in the control configuration parameter P0397.
ATTENTION!
An improper change of P0397 may damage the inverter. Only do that under WEG technical directions.
14.5 OVERCURRENT PROTECTION (F0070 AND F0074)
The ground fault and output overcurrent protections act very fast by means of the hardware to instantly cut the
output PWM pulses when the output current is high.
Fault F0070 corresponds to a current surge between output phases, while fault F0074 indicates surge of phase
to the ground (PE).
The protection current level depends on the used power module so as the protection is effective, still this value is
well above the inverter rated operating current (P0295).
Summary of Contents for CFW501 V1.8X
Page 2: ......
Page 8: ...Summary...
Page 34: ...General Information 2 4 CFW501 2...
Page 38: ...About the CFW501 3 4 CFW501 3...
Page 42: ...HMI and Basic Programming 4 4 CFW501 4...
Page 58: ...Identification of the Inverter Model and Accessories 6 4 CFW501 6...
Page 72: ...Logical Command and Speed Reference 7 14 CFW501 7...
Page 76: ...Available Motor Control Types 8 4 CFW501 8...
Page 108: ...Functions Common to all the Control Modes 11 14 CFW501 11...
Page 134: ...Digital and Analog Inputs and Outputs 12 26 CFW501 12...
Page 148: ...Faults and Alarms 14 12 CFW501 14...