Siemens SINAMICS G220 - Torque Control

14.10.7 Torque control
Overview
Torque control is part of the speed control and is used when the speed controller has been
disabled.
Requirement
• You have set the motor data correctly during quick commissioning.
The motor data is transferred from the nameplate and calculated with the motor data
identi󹪝cation during quick commissioning.
• You have performed a motor data identi󹪝cation on the cold motor.
Description of function
*
E
DPOUSPMMFS
*
R
DPOUSPMMFS
6QQFSUPSRVFMJNJU
-PXFSUPSRVFMJNJU
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1PXFSMJNJUXIFO
NPUPSJOH
$BMDVMBUJPOPG
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MJNJUT
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5PSRVF
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5PSRVFTFUQPJOU
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.FBTVSFE
WPMUBHF
.FBTVSFE
DVSSFOU
0VUQVUGSFRVFODZ
0VUQVU
WPMUBHF
7PMUBHFBOHMF
.BYJNVNTQFFE
5SBOTGPS
NBUJPO
5SBOTGPS
NBUJPO
'MVYTFUQPJOU


Q
Q
D
Q
Q
Q
Q
Figure14-152 Simpli󹪝ed function diagram of the closed-loop torque control
The torque control normally receives its setpoint from the output of the speed controller. By
disabling the speed controller and directly setting the torque setpoint, the closed-loop speed
control becomes a closed-loop torque control. The converter then no longer controls the
speed of the motor, but instead the torque that the motor generates.
Functions
14.10Closed-loop drive control
SINAMICS G220 converter
554 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB