Siemens SINAMICS G120D Series - Page 197

Advanced commissioning
7.7 Application-specific functions
Monitoring for torque deviation
Based on the envelope curve shown below and dependent on the speed, the torque is
monitored against a lower and upper torque. The inverter linearly interpolates the
intermediate values.
Principle of operation
The inverter monitors the motor torque for speeds between threshold value 1 and threshold
value 3.
If the torque lies outside the envelope curve for longer than the time set in p2192, then the
response defined in p2181 is initiated.
The torque is not monitored for speeds between 0 and speed threshold 1 (p2182) - as well
as between speed threshold 3 (p2184 and the maximum speed (p1082).
Settings
Parameters
Description
p2181
Load monitoring response
Response when evaluating the load monitoring. Setting options
see Response
options for the load monitoring (Page 199)
p2182
Load monitoring speed threshold 1
p2183
Load monitoring speed threshold 2
p2184
Load monitoring speed threshold 3
p2185
Load monitoring torque threshold 1, upper
p2186
Load monitoring torque threshold 1, lower
p2187
Load monitoring torque threshold 2, upper
p2188
Load monitoring torque threshold 2, lower
p2189
Load monitoring torque threshold 3, upper
p2190
Load monitoring torque threshold 3, lower
p2192
Load monitoring delay time
Delay time for the message "Leave torque monitoring tolerance band"
p2193 = 1
Load monitoring configuration
(factory setting: 1)
see Table 7-28 Setting options for load monitoring (Page 195)
Converter with control units CU240D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34262100B AB
197