5 torque setpoint limitation – Efficient Networks Siemens Sinamics S120 User Manual

Page 71

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Servo control

3.5 Torque setpoint limitation

Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

71

Function diagrams (see SINAMICS S List Manual)

● 5060 Torque setpoint, control type switchover
● 5610 Torque limiting/reduction/interpolator

Signal overview (see SINAMICS S List Manual)

● r1406.12 Torque control active

Parameterization

The "torque setpoint" parameter screen is selected via the following icon in the toolbar of the

STARTER commissioning tool:

Figure 3-7

STARTER icon for "torque setpoint"

Overview of key parameters (see SINAMICS S List Manual)

Adjustable parameters

● p1300 Open-loop/closed-loop control operating mode
● p1501[CDS] BI: Change over between closed-loop speed/torque control
● p1511[CDS] CI: Supplementary torque 1
● p1512[CDS] CI: Supplementary torque 1 scaling
● p1513[CDS] CI: Supplementary torque 2

Display parameters

● r1515 Supplementary torque total

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
2. Generate torque limits
The torque setpoint can be limited to a maximum permissible value in all four quadrants.

Different limits can be parameterized for motor and regenerative modes.

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