Inverter Overload Reaction; Inverter Protection - Siemens MICROMASTER 440 Parameter Manual

Parameter Description
P0290

Inverter overload reaction

CStat: CT
P-Group: INVERTER
Selects reaction of inverter to an internal over-temperature.
Following physical values influence the inverter overload protection (see diagram):
- heat sink temperature
- junction temperature (IGBT temperature)
- inverter I²t
r0036
r0037
Possible Settings:
0 Reduce output frequency
1 Trip (F0004)
2 Reduce pulse frequency and output frequency
3 Reduce pulse frequency then trip (F0004)
Notice:
P0290 = 0:
Reduction of output frequency is only effective if the load is also reduced. This is for example valid for
variable torque applications with a quadratic torque characteristic as pumps or fans.
A trip will always result, if the action taken does not sufficiently reduce internal temperature.
The pulse frequency P1800 is reduced only if higher than 2 kHz. The actual pulse frequency is displayed in
parameter r1801.
P0291[3]

Inverter protection

CStat: CT
P-Group: INVERTER
Bit 02 shows if phase loss dedection (input phase) of 3 phase inverters is enabled after factory reset.
Default setting of phase loss is disabled for FSA - FSC. FSD and greater it is enabled.
Bitfields:
Bit00 Reserved
Bit01 Reserved
Bit02 Phase loss detection enable
Index:
P0291[0] : 1st. Drive data set (DDS)
P0291[1] : 2nd. Drive data set (DDS)
P0291[2] : 3rd. Drive data set (DDS)
Details:
See P0290 (inverter overload reaction)
48
Datatype: U16
Active: first confirm
Inverter monitoring
2
i t
P0294
Heat sink
temperature
P0292
IGBT
temperature
P0292
Datatype: U16
Active: Immediately
Min:
Unit: - Def:
QuickComm.: No Max:
Inverter overload reaction
P0290
i_max control
(U/f)
Current control
(SLVC, VC)
f_pulse
control
Min:
Unit: - Def:
QuickComm.: No Max:
0 NO
0 NO
0 NO
MICROMASTER 440
Issue 01/06
Level
0
3
2
3
A0504
A0505
A0506
F0004
F0005
Level
0
4
1
7
1 YES
1 YES
1 YES
Parameter List
6SE6400-5BB00-0BP0