Torque Setpoint Limitation - Siemens Sinamics S120 Function Manual

Servo control

3.5 Torque setpoint limitation

● OFF3
Function diagrams (see SINAMICS S120/S150 List Manual)
● 5060 Torque setpoint, control type switchover
● 5610 Torque limiting/reduction/interpolator
Overview of important parameters (see SINAMICS S120/S150 List Manual)
● p1300 Open-loop/closed-loop control operating mode
● r1406.12 Torque control active
● p1501[C] BI: Change over between closed-loop speed/torque control
● p1511[C] CI: Supplementary torque 1
● p1512[C] CI: Supplementary torque 1 scaling
● p1513[C] CI: Supplementary torque 2
● r1515 Supplementary torque total
Parameterization with STARTER
The "torque setpoint" parameterization screen form is selected via the following icon in the
toolbar of the STARTER commissioning tool:
Figure 3-8
3.5 Torque setpoint limitation
Description
The steps required for limiting the torque setpoint are as follows:
1. Define the torque setpoint and an additional torque setpoint
78
– Switch to speed-controlled operation
– n_set = 0 is input immediately to brake the drive along the OFF3 deceleration ramp
(p1135).
– When zero speed is detected, the motor brake (if parameterized) is closed.
– The pulses are suppressed when the motor brake application time (p1217) has
elapsed. Standstill is detected when the actual speed value is less than the speed
threshold (p1226) or when the monitoring time (p1227) that started when speed
setpoint ≤ speed threshold (p1226) has expired.
– Switching on inhibited is activated.
STARTER icon for "torque setpoint"
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions