Detailed Description
2.1 Various interface signals and functions (A2)
Basic logic functions: NC/PLC interface signals (Z1)
60 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
DB31, ...
DBX94.6
n
act
= n
set
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
SIMODRIVE 611D/611U signals the PLC that after a new speed setpoint has been entered, the
speed actual value n
act
has reached the speed tolerance bandwidth:
MD1426 $MD_SPEED_DES_EQ_ACT_TOL (tolerance bandwidth for n
set
= n
act
signal)
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
set
= n
act
signal)
(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
act
= n
set
)
is set to 0.
Signal state 0 or
edge change
1 → 0
The conditions described above have not yet been fulfilled. The speed actual value is outside the
speed tolerance bandwidth.
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
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