Siemens Sinamics S120 Function Manual page 82

Servo control
3.5 Torque setpoint limitation
● Offset of the setting values also possible (see "Example: Torque limits with or without
● The following torque limits are displayed via parameters:
Fixed and variable torque limit settings
Table 3- 2 Fixed and variable torque limit settings
Selection
Mode
Fixed torque limit
Source for variable torque
limit
Source for variable scaling
factor of torque limit
Torque offset for torque
limit
Variants of torque limitation
The following variants are available:
● No settings entered:
● Fixed limits are required for the torque:
● Dynamic limits are required for the torque:
● A torque offset can be parameterized.
● In addition, the power limits can be parameterized separately for motor and regenerative
80
offset").
– Lowest of all upper torque limits with and without offset
– Highest of all lower torque limits with and without offset
Maximum upper or lower torque limits
p1400.4 = 0
Upper torque limit (as positive
value)
Lower torque limit (as negative
value)
Upper torque limit
Lower torque limit
Upper torque limit
Lower torque limit
Shifts the upper and lower
torque limits together
The application does not require any additional restrictions to the torque limits.
The fixed upper and lower limits or alternatively the fixed motor and regenerative limits
can be specified separately by different sources.
– The dynamic upper and lower limit or, alternatively, the dynamic motor and
regenerative limit can be specified separately by different sources.
– Parameters are used to select the source of the current limit.
mode.
Torque limitation mode
Maximum motor or regenerative mode torque
limits p1400.4 = 1
p1520 Motor mode torque limit (as
positive value)
p1521 Regenerative mode torque limit (as
negative value)
p1522 Motor mode torque limit
p1523 Regenerative mode torque limit
p1528 Motor mode torque limit
p1529 Regenerative mode torque limit
p1532 Shifts the motor and regenerative
mode torque limits together
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
p1520
p1521
p1522
p1523
p1528
p1529
p1532
Drive functions