Commissioning; Control Mode; Setpoint Pulse Input Channel; Setpoint Pulse Train Input Format - Siemens Simatic S7 Series System Manual

12.7 Using the AXISx_ABSPOS subroutine to read the absolute position from a SINAMICS servo drive
12.7.3

Commissioning

12.7.3.1

Control mode

"PTI" mode is the drive control mode setting that allows movement speed and distance to be
controlled from an external pulse train. The default control mode in the V90 servo drive is
basic "PTI" mode, but you can check the mode setting by reading the value of parameter
"p29003" and verifying that the value = "0". It is possible to use compound control modes
(PTI/S and PTI/T) with the pulse train output from the S7-200 SMART CPU. These are
advanced features and are not within the scope of this document. For assistance with these
features, refer to the
12.7.3.2

Setpoint pulse input channel

For correct operation with the digital outputs of the S7-200 SMART CPU, you must select the
"24 V DC single end pulse train input" setting for the setpoint pulse input channel parameter
(parameter "p29014" = 1) in the V90 servo drive.
12.7.3.3

Setpoint pulse train input format

Ensure that the CPU's Axis of Motion output phasing and polarity settings (established in the
"Directional Control" dialog of the STEP 7-Micro/WIN SMART Motion wizard) are consistent
with the V90 servo drive's setpoint pulse train input format setting (parameter "p29010").
12.7.3.4

Common engineering units basis

When using a motion axis on the S7-200 SMART CPU to control the movement speed and
distance of a servo motor, you must establish a common definition of the engineering units
between the Axis of Motion (CPU) and the drive.
The following diagram shows the elements of a motion system:
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
SINAMICS V90 / SIMOTICS S-1FL6 Operating Instructions
Open loop motion control
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