Siemens SINUMERIK 808D ADVANCED Operating Instructions Manual page 416

Detailed descriptions of interface signals
4.8 Axis / spindle-specific signals
DB390x
DBX4002.2
Edge evaluation: No
Signal state 1
Signal state 0
corresponding to ...
Note for the reader
DB390x
DBX4002.3
Edge evaluation: No
Signal state 1
Signal state 0
corresponding to ...
Note for the reader
DB390x
DBX4002.4
Edge evaluation: No
Signal state 1
Signal state 0
Note for the reader
DB390x
DBX4002.5
Edge evaluation: No
Signal state 1
416
Ramp-up completed
Signal(s) to drive (NCK → PLC)
Signal(s) updated: Cyclic
The PLC is signaled that after a new speed setpoint input, the speed actual
value has reached the speed tolerance bandwidth and has remained within
this tolerance bandwidth for the specified time.
Even if the speed actual value leaves the tolerance bandwidth (because of
speed fluctuations resulting from load changes) the "ramp-up completed"
signal remains.
The conditions described above have not yet been fulfilled. Ramp-up has
therefore not yet been completed.
DB390x DBX4002.6 (n = n
act
DB390x DBX4002.3 (M < M
d
Commissioning Manual, Turning and Milling
M < M
d dx
Signal(s) to drive (NCK → PLC)
Signal(s) updated: Cyclic
The drive signals to the PLC that the torque setpoint M
the threshold torque M in the steady-state condition (i.e. ramp-up
dx
completed).
The torque threshold characteristic is speed-dependent.
While ramping-up, the IS "M
The signal only becomes active after ramp-up has been completed (DB390x
DBX4002.2 = 1) and the signal interlock time for the threshold torque has
expired.
The torque setpoint M is greater than the threshold torque M
d
If necessary, the PLC user program can initiate a response.
DB390x DBX4002.2 (ramp-up completed)
Commissioning Manual, Turning and Milling
n < n
act min
Signal(s) to drive (NCK → PLC)
Signal(s) updated: Cyclic
The drive signals to the PLC that the actual speed value n
minimum speed (n ).
min
The speed actual value is higher than the minimum speed.
Commissioning Manual, Turning and Milling
n < n
act x
Signal(s) to drive (NCK → PLC)
Signal(s) updated: Cyclic
The drive signals to the PLC that the speed actual value n
threshold speed (n ).
x
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
)
set
)
dx
< M " remains at 1.
d dx
does not exceed
d
.
dx
is less than the
act
is less than the
act
Parameter Manual