Siemens SINUMERIK 808D ADVANCED Operating Instructions Manual page 418

Detailed descriptions of interface signals
4.8 Axis / spindle-specific signals
DB390x
DBX4003.0
Edge evaluation: No
Signal state 1
Signal state 0
corresponding to ...
Note for the reader
DB390x
DBX5002.4
Edge evaluation: No
Signal state 1
Signal state 0
corresponding to ...
Note for the reader
DB390x
DBX5002.5
Edge evaluation: No
Signal state 1
Signal state 0
418
V < V
DClink DClinkx
Signal(s) to drive (NCK → PLC)
Signal(s) updated: Cyclic
The drive signals the PLC that the DC link voltage V
DC link undervoltage threshold V
The DC link undervoltage threshold is defined using r0296.
The DC link undervoltage threshold should be defined to be greater than
400 V. If the DC link voltage drops below 280 V, the unit is powered-down
by the hardware.
The DC link voltage is less than the DC link undervoltage alarm threshold.
r0296 (DC link voltage, undervoltage threshold)
Commissioning Manual, Turning and Milling
Superimposed motion
Signal(s) from axis / spindle (NCK → PLC)
Signal(s) updated: Cyclic
The following spindle executes an additional motion component, that is
superimposed on the motion from the coupling with the leading spindle.
Example for superimposed motion of the following spindle:
•
Activating the synchronous mode with a defined angular offset between
the following spindle and leading spindle.
•
Activating the synchronous mode for rotating leading spindle.
•
Changing the ratio while the synchronous mode is active.
•
Entering a new defined angular offset when the synchronous mode is
active
•
Traversing the following spindle with plus or minus traversing keys or
handwheel in JOG when the synchronous mode is active.
As soon as the following spindle executes a superimposed motion, IS "Fine
synchronism" or IS "Coarse synchronism" (depending on threshold value)
may be canceled immediately.
The following spindle does not traverse through any additional motion
component or this has been completed.
DB390x DBX2002.4 (synchronous mode)
Function Manual Basic Functions S1
Velocity alarm threshold reached
Signal(s) from axis / spindle (NCK → PLC)
Signal(s) updated: Cyclic
When the velocity of the following axis in the axis grouping of the electronic
gear reaches or exceeds the percentage of the velocity entered in MD37550
, which is set in MD32000, then the signal is set to 1.
The velocity of the following axis in the axis grouping of the electronic gear
falls below the threshold value described above.
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
is less than the
DClink
.
DClinkx
Parameter Manual