Siemens SINAMICS V90 - Page 20

5 Operation of the application
5.1 Scenario A
Speed control with SINAMICS V90 and S7-300 via Profinet
Entry-ID: 109743898, V1.0, 07/2016
20
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Nr.
Action
Remarks
7.
Open the watch table 1:
8.
Write value 16#47E into QW256:
Q address:
256 … 259
9.
Write value 16#47F into QW256, and then the drive turns to servo on.
The OFF1 signal
needs a positive
edge and should
after OFF2 and
OFF3 to enable the
drive.
10.
Write value 16#2000 into QW258, and then the motor starts running at
50% of the rated speed.
QW258: speed
setpoint.
Scaling factor:
4000 hex = 100% of
the value of drive
parameter p2000