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Siemens SINUMERIK 840D sl Function Manual

Siemens SINUMERIK 840D sl
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Detailed description
2.12 Block descriptions
Basic logic functions: PLC Basic program powerline (P3 pl)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
215
Call example
CALL FC 16 (
//Position an indexing axis
Start := I72.4,
AxisNo := 6,
IC := FALSE,
DC := #short, //e.g., local variable
Minus := FALSE,
Plus := FALSE,
Pos := MW 168,
FRate := MD164,
InPos := Q 36.4,
Active := Q 36.5,
StartErr := Q 36.6,
Error := Q 36.7);
2.12.21 FC 17: YDelta star/delta changeover
Description of Functions
The block for star/delta changeover controls the timing of the defined switching logic such
that the changeover can be performed in either direction even when the spindle is running.
This block may be used only for digital main spindle drives and must be called separately for
each spindle.
The changeover operation is implemented via 2 separate contactors in a sequence involving
4 steps:
Step 1: Deleting the interface signal DB31, ... DBX21.5 (Motor selection done) in the related
axis-DB and register the changeover process via A with
DB31, ... DBX21.3 (Motor selection).
Step 2: As soon as the return message NST DB31, ... DBX93.7 (Pulse enabled) and the
acknowledgment of the announced motor selection from the drive have appeared, the
currently energized contactor drops out.
Step 3: The other contactor is energized after the time period set by the user in parameter
"TimeVal" has elapsed.
Step 4: After a further delay, the changeover is signaled to the drive with NST
DB31, ... DBX21.5 (Motor selection done) reported.

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Siemens SINUMERIK 840D sl Specifications

General IconGeneral
Control TypeCNC
Number of AxesUp to 31
Max Number of Channels10
InterfacesEthernet, PROFIBUS, PROFINET, USB
Interpolation5-axis interpolation
Operating Temperature0°C to 45°C
Relative HumidityUp to 95% (non-condensing)
DisplayTFT color display, various sizes
Programming LanguagesDIN/ISO
Safety FeaturesSafety Integrated
PLCIntegrated PLC S7-300
Drive InterfaceSINAMICS S120
Data StorageCF card, USB
Operating SystemWindows-based

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