Siemens SINUMERIK 840D sl Function Manual page 2056

Detailed Description
2.1 Various interface signals and functions (A2)
DB31, ...
DBX94.6
n
Edge evaluation: no
Signal state 1 or SIMODRIVE 611D/611U signals the PLC that after a new speed setpoint has been entered, the
edge change speed actual value n
0 → 1 MD1426 $MD_SPEED_DES_EQ_ACT_TOL (tolerance bandwidth for n
and has remained within this tolerance bandwidth for at least the time defined using machine data:
MD1427 $MD_SPEED_DES_EQ_ACT_DELAY (delay time for n
(refer to the diagram).
If the speed actual value then leaves the tolerance bandwidth, then contrary to the signal "ramp-up
completed", the interface signal:
DB31, ... DBX94.6 (n
is set to 0.
Signal state 0 or The conditions described above have not yet been fulfilled. The speed actual value is outside the
edge change speed tolerance bandwidth.
1 → 0
Corresponding to .... DB31, ... DBX94.2 (ramp-up completed)
MD1426 $MD_SPEED_DES_EQ_ACT_TOL
MD1427 $MD_SPEED_DES_EQ_ACT_DELAY
Additional references /IAD/ SINUMERIK 840D Installation and Startup Guide; Chapter: SIMODRIVE 611D
or
/IAC/ SINUMERIK 810D Installation and Start-up Guide
60
= n
act set
Signal(s) updated: cyclic
has reached the speed tolerance bandwidth:
act
= n
act
)
set
= n signal)
set act
= n signal)
set act
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0