2.3 Motion control in the SIMATIC S7-1500
SINAMICS G120 as a Speed Axis on the S7-1500
V1.0a, Entry ID: 78788716
Copyright Siemens AG 2013 All rights reserved
2.3 Motion control in the SIMATIC S7-1500
The motion control functions of the SIMATIC S7-1500 CPUs are based on the Axis
technology object.
From a programmer’s point of view, the Axis technology object represents the
SINAMICS drive, i.e. the converter, motor and, where necessary, position encoder.
The position encoder is necessary only for positioning axes.
The SIMATIC S7-1500 supports speed axes and positioning axes:
• Speed axes allow you to specify the speed at which the axis is to rotate.
• A positioning axis supports all functions of a speed axis and additionally offers
the option of approaching position values.
With the aid of motion control instructions, function blocks according to the
PLCopen standard enable the user to move the Axis technology object and
therefore the SINAMICS drive. The current axis status can be read out of the
technology DB of the Axis technology object at any time.
Figure 2-4
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