Overload response for p0290 = 12
The converter responds in 2 stages:
1. If you operate the converter with increased pulse frequency setpoint p1800, then the
converter reduces its pulse frequency starting at p1800.
There is no current derating as a result of the higher pulse frequency setpoint.
Once the overload condition has been removed, the converter increases the pulse
frequency back to the pulse frequency setpoint p1800.
2. If it is not possible to temporarily reduce the pulse frequency, or the risk of converter thermal
overload cannot be prevented, then stage 2 follows:
– In vector control, the converter reduces the output current.
– In U/f control, the converter reduces the speed.
Once the overload condition has been removed, the converter re-enables the output current
or speed.
If both measures cannot prevent a power unit thermal overload, then the converter switches off
the motor with fault F30024.
Overload response for p0290 = 13
We recommend this setting for drives with a high starting torque.
If you operate the converter with increased pulse frequency, then the converter reduces its
pulse frequency starting at the pulse frequency setpoint p1800.
There is no current derating as a result of the higher pulse frequency setpoint.
Once the overload condition has been removed, the converter increases the pulse frequency
back to the pulse frequency setpoint p1800.
If it is not possible to temporarily reduce the pulse frequency, or the measure cannot prevent a
power unit thermal overload, then the converter switches off the motor with fault F30024.
Parameters
Number
Name
Factory setting
r0036
CO: Power unit overload I2t
%
r0037[0…19]
Power unit temperatures
°C
p0290
Power unit overload response
2
p0292[0…1]
Power unit temperature alarm threshold
[0] 5 °C, [1] 15 °C
p0294
Power Module alarm for I2t overload
95%
Advanced commissioning
6.7 Drive protection
SINAMICS G120XA converter
304
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
Содержание SINAMICS G120XA
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Страница 12: ...Table of contents SINAMICS G120XA converter 10 Operating Instructions 03 2019 FW V1 0 A5E44751205B AB ...
Страница 104: ...Wiring 4 2 Control interfaces SINAMICS G120XA converter 102 Operating Instructions 03 2019 FW V1 0 A5E44751205B AB ...
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