Table of Contents
Advertisement
Functions
14.10 Closed-loop drive control
Description of function
The following settings are available to select:
Table 14-72
0
1
2
3
5
6
510
Setting of technological application for closed-loop speed control
Standard drive
Pumps and fans
Encoderless control down to f =
0 (passive loads)
Pumps and fans, efficiency opti‐
mization
Starting with high break loose
torque
High load inertia
•
Factory setting for closed-loop speed control with or without
speed encoder
•
In all applications that do not fit the other setting options.
•
Optimized utilization of the converter output voltage by re‐
ducing the voltage reserve at higher speeds
If high load surges in the range of low and medium speeds
cannot be ruled out, we recommend setting p501=0.
•
Applications involving pumps and fans
•
Setting for encoderless closed-loop control of induction mo‐
tors and reluctance motors
•
Speed-controlled operation of induction motors at low
speeds
•
Speed-controlled operation of reluctance motors at low
speeds using the pulse technique (license required)
•
A passive load cannot accelerate the current-free motor.
Examples are pumps, fans, extruders, but not hoisting gear
•
Setting for control of induction motors
•
Suitable for applications without dynamic requirements for
speed and load changes
•
Applications involving pumps and fans
•
Efficiency optimization
Less energy consumption and reduced noise
•
The setting only makes sense for steady-state operation with
slow speed changes. We recommend the setting 0 if load
surges in operation cannot be ruled out.
•
Setting for encoderless control (all motor types)
•
For speed-controlled operation at low speeds, the current is
raised via p1610.
•
A break loose torque is a high load in the lower speed range
•
Increased default setting of the static torque setpoint (p1610)
•
Setting for drives with high power and a total moment of
inertia at least 5 times greater than the motor moment of
inertia
•
Increased preset for speed actual value smoothing
•
Optimized speed controller preset
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
SINAMICS G220 converter
Advertisement
Table of Contents
