Siemens SINAMICS G220 - Page 512

Description of function
The following settings are available to select:
Table 14-72 Setting of technological application for closed-loop speed control
0 Standard drive
• Factory setting for closed-loop speed control with or without
speed encoder
• In all applications that do not 󹪝t the other setting options.
1 Pumps and fans
• 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
2 Encoderless control down to f =
0 (passive loads)
• 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
3 Pumps and fans, e󹪟ciency opti‐
mization
• Setting for control of induction motors
• Suitable for applications without dynamic requirements for
speed and load changes
• Applications involving pumps and fans
• E󹪟ciency 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.
5 Starting with high break loose
torque

• 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)
6 High load inertia
• 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
Functions
14.10Closed-loop drive control
SINAMICS G220 converter
510 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB