Siemens SINAMICS V20 - Page 215

Parameter list
8.2 Parameter list
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
213
Parameter
Function
Range
Factory
default
Can be
changed
Scaling
Data
set
Data
type
Acc.
Level
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
2
t (r0036); causes A505 and F5.
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
2
t acts upon output current and output frequency, but not on pulse frequency.
A trip will always result, if the action taken does not sufficiently reduce internal temperatures.
P0291[0...2]
Converter protection
0 - 7
1
U, T
-
DDS
U16
4
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
Signal name
1 signal
0 signal
00
Pulse frequency reduced below 2 Hz
Yes
No
01
Reserved
Yes
No
02
Phase loss detection enable
No
Yes
03
Reserved
Yes
No
04
Output current ripple detection enable
No
Yes
05
Enhanced dead-time compensation enable
No
Yes
Note:
See P0290