Siemens SINAMICS V20 Operating Instructions Manual page 280

Parameter list
8.2 Parameter list
Parameter Function
P2181[0...2] Load monitoring mode
Sets load monitoring mode.
This function allows monitoring of mechanical failure of the inverter train, e.g. a broken inverter belt. It can
also detect conditions which cause an overload, such as a jam. P2182 -P2190 are set to the following
values when this parameter is changed from 0.
P2182 = P1080 (Fmin)
P2183 = P1082 (Fmax) * 0.8
P2184 = P1082 (Fmax)
P2185 = r0333 (rated motor torque) * 1.1
P2186 = 0
P2187 = r0333 (rated motor torque) * 1.1
P2188 = 0
P2189 = r0333 (rated motor torque) * 1.1
P2190 = r0333 (rated motor torque) / 2
This is achieved by comparing the actual frequency / torque curve with a programmed envelope (see
P2182 - P2190). If the curve falls outside the envelope, a warning A952 or trip F452 is generated.
0
1
2
3
4
5
6
P2182[0...2] Load monitoring thresh-
old frequency 1 [Hz]
Sets the lower frequency threshold f_1 for defining the area where the load monitoring is effective. The
frequency torque envelope is defined by 9 parameters - 3 are frequency parameters (P2182 - P2184), and
the other 6 define the low and high torque limits (P2185 - P2190) for each frequency.
Dependency: See P2181 for calculated default value.
Note: Below the threshold in P2182 and above the threshold in P2184, the load monitoring mode is not active. In
this case the values for normal operation with the torque limits given in P1521 and P1520 are valid.
P2183[0...2] Load monitoring thresh-
old frequency 2 [Hz]
Sets the frequency threshold f_2 for defining the envelope in which the torque values are valid. See
P2182.
Dependency: See P2181 for calculated default value.
P2184[0...2] Load monitoring thresh-
old frequency 3 [Hz]
Sets the upper frequency threshold f_3 for defining the area where the load monitoring is effective. See
P2182.
Dependency: See P2181 for calculated default value.
280
Range Factory
default
0 - 6 0
Load monitoring disabled
Warning: Low torque / frequency
Warning: High torque / frequency
Warning: High / low torque / frequency
Trip: Low torque / frequency
Trip: High torque / frequency
Trip: High / low torque / frequency
0.00 - 550.00 5.00
0.00 - 550.00 30.00
0.00 - 550.00 50.00
Can be Scaling
changed
T -
U, T -
U, T -
U, T -
Operating Instructions, 11/2016, A5E34559884-006
Data Data Acc.
set type Level
DDS U16 3
DDS Float 3
DDS Float 3
DDS Float 3
SINAMICS V20 Inverter