Description of function
The following settings are available to select for motor control with parameter p0502.
Table 14-71 Setting of technological application in Dynamic Drive Control
0 Standard drive, e.g. pumps and fans
• Default setting for a synchronous motor with or without
speed encoder
1 Dynamic starting or reversing
• Default setting for an induction motor without encoder
• Recommended setting for applications with short ramp-
up and ramp-down times of less than 10s
• Starting from standstill with closed-loop speed control
Prerequisite:
The speed setpoint at the ramp-function generator input
is greater than the switchover speed p1755
2 Encoderless control down to f = 0
(passive loads)
• Setting for an induction motor without encoder
• Speed-controlled operation of induction motors at low
speeds
• Speed-controlled operation of reluctance motors with
pulse technique (license required)
• A passive load cannot accelerate the current-free motor.
Examples are pumps and fans, but not hoisting gear
5 Starting with high break loose tor‐
que
• Setting for all motor types without encoder
• For speed-controlled operation at low speeds, the cur‐
rent 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
14.10Closed-loop drive control
SINAMICS G220 converter
474 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
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