Faults and Alarms
15
CFW700 | 15-9
P0349 – I x t Alarm Level
Adjustable
Range:
70 to 100 %
Factory
Setting:
85 %
Properties:
cfg
Access groups
via HMI:
Description:
This parameter defines the level for the motor overload protection alarm actuation (A046), it is expressed as a
percentage of the trip level of the overload integrator.
It will only be effective if P0348 is programmed in 1 (Fault/Alarm) or 3 (Alarm).
P0350 – IGBT Overload Configuration
Adjustable
Range:
0 = Fault is active, with switching frequency reduction
1 = Fault and alarm are active, with switching frequency
reduction
2 = Fault is active, without switching frequency reduction
3 = Fault and alarm are active, without switching frequency
reduction
Factory
Setting:
1
Properties:
cfg
Access groups
via HMI:
Description:
The inverter overload function operates separately from the motor overload protection, and it has the purpose
of protecting the IGBTs and rectifiers in case of overload, avoiding that damage due to overtemperature at their
junctions occurs.
Thus, the parameter P0350 allows configuring the desired protection level for this function, even with the
automatic reduction of the switching frequency, in order to avoid the fault occurrence. The next table describes
each of the available options.
Table 15.3:
Actions for the parameter P0350 options
P0350
Action
0
It enables F048 – IGBT Overload Fault. In order to avoid the occurrence of the fault, the switching
frequency is reduced automatically to 2.5 kHz.
(*)
1
It enables the fault F048 and the alarm A047 – IGBT Overload Alarm. In order to avoid the
occurrence of the fault, the switching frequency is reduced automatically to 2.5 kHz.
(*)
2
It enables F048. Without the reduction of the switching frequency.
3
It enables the alarm A047 and the fault F048. Without the reduction of the switching frequency.
(*)
It reduces the switching frequency when:
The output current exceeds 1.5 x I
nom-HD
(1.1 x I
nom-ND
);
or
The temperature at the IGBT case is less than 10 °C from the maximum temperature;
and
P0297=2 (5 kHz).
Summary of Contents for CFW700
Page 2: ......
Page 4: ......
Page 8: ...Summary...
Page 34: ...2 General Information 2 4 CFW700...
Page 38: ...3 About the CFW700 3 4 CFW700...
Page 56: ...7 Starting up and Settings 7 4 CFW700...
Page 58: ...8 Available Control Types 8 2 CFW700...
Page 78: ...10 VVW Control 10 8 CFW700...
Page 158: ...13 Digital and Analog Inputs and Outputs 13 28 CFW700...
