Siemens SINAMICS V20 Operating Instructions Manual page 215

Parameter Function
Dependency: Following physical values influence the converter overload protection (see diagram):
Heat sink temperature (r0037[0]); causes A504 and F4.
•
IGBT Junction temperature (r0037[1]); causes F4 or F6.
•
Delta temperature between heat sink and junction temperature; causes A504 and F6.
•
Converter I
•
Notice: P0290 = 0, 2:
Reduction of output frequency is only effective if the load is also reduced.
•
This is for example valid for light overload applications with a quadratic torque characteristic as pumps or fans.
For settings P0290 = 0 or 2, the I-max controller will act upon the output current limit (r0067) in case of
•
overtemperature.
P0290 = 0:
With pulse frequencies above nominal, pulse frequency will be reduced to nominal immediately in the
•
event of r0027 greater than r0067 (current limit).
P0290 = 2, 3:
The pulse frequency P1800 is reduced only if higher than 2 kHz and if the operating frequency is below 2 Hz.
•
The actual pulse frequency is displayed in r1801[0] and the minimal pulse frequency for reduction is
•
displayed in r1801[1].
Converter I
•
A trip will always result, if the action taken does not sufficiently reduce internal temperatures.
P0291[0...2] Converter protection
Bit 00 for enabling/disabling automatic pulse frequency reduction at output frequencies below 2 Hz. The
benefit is to reduce the noises at frequencies below 2 Hz.
Bit
00
01
02
03
04
05
Note: See P0290
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
Range
t (r0036); causes A505 and F5.
2
t acts upon output current and output frequency, but not on pulse frequency.
2
0 - 7
Signal name
Pulse frequency reduced below 2 Hz
Reserved
Phase loss detection enable
Reserved
Output current ripple detection enable
Enhanced dead-time compensation enable
Factory Can be Scaling
default changed
1 U, T -
1 signal
Yes
Yes
No
Yes
No
No
Parameter list
8.2 Parameter list
Data Data Acc.
set type Level
DDS U16 4
0 signal
No
No
Yes
No
Yes
Yes
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