3 Function Principle of the Application Example
Drehzahlachse mit SINA_SPEED
Entry-ID: 109485727, V1.0, 06/2017
Siemens AG 2017 All rights reserved
Table 3-4: Used bits from status word 1
Motor can follow the setpoint value (status word 1 bit 3
enabled)
There is a fault in the converter
The motor is only switched on again after re-starting
(status word 1 bit 0).
More information on the SINAMICS G120 drives can be found in the manuals \3\.
3.2 “SINA_SPEED” function block
The “SINA_SPEED” block is contained in the “DriveLib” library.
https://support.industry.siemens.com/cs/ww/en/view/109475044
Block call
The “SINA_SPEED” block can be called in the following organization blocks (OBs):
Cyclic task: OB1
Interrupt OB: for example OB32
Figure 3-2: “SINA_SPEED” block call
Block parameters
The following tables list the input and output parameters of the “SINA_SPEED”
block.
Table 3-5: “SINA_SPEED” input parameters
Start/stop of the drive (assignment of drive
control word 1 bit 0)
Acknowledgment of errors in the drive
(assignment of drive control word 1 bit 7)
Definition of the speed [1/min]
Reference speed of the drive.
(Entry must be identical with drive
parameter p2000)
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