Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

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Setpoint channel and closed-loop control
7.4 Vector speed/torque control with/without an encoder
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
481
7.4.5 Closed-loop torque control
Description
For speed control without encoder (p1300 = 20) or speed control with encoder (p1300 = 21),
a changeover can be made to torque control (following drive) using BICO parameter p1501.
A changeover cannot be made between speed and torque control if torque control is
selected directly with p1300 = 22 or 23. The torque setpoint and/or supplementary setpoint
can be entered using BICO parameter p1503 (CI: Torque setpoint) or p1511 (CI:
Supplementary torque setpoint). The supplementary torque is active both for torque and
speed control. This particular feature with the supplementary torque setpoint allows a
precontrol torque to be applied for speed control.
Note
No interconnection to fixed torque setpoints
For safety reasons, connecting to fixed torque setpoints is presently not possible.
Note
Regenerative energy without feedback capability
If energy is regenerated and cannot be injected back into the line supply, then a Braking
Module with connected braking resistor must be used.
Figure 7-21 Closed-loop speed/torque control