Detailed Description
2.1 Various interface signals and functions (A2)
Basic logic functions: NC/PLC interface signals (Z1)
50 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
DB31, ...
DBX93.3 - DBX93.4
Active motor A, B
Edge evaluation: no Signal(s) updated: cyclic
Meaning The drive module (611D) returns signals to PLC stating which motor selection is currently active.
Motor selection can be used with a main spindle drive (MSD) to switch between star and delta
operation and so reduce the starting current.
The following assignment applies:
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Signal irrelevant for
...
SINUMERIK 810D
Corresponding to .... DB31, ... DBX21.3 and DBX21.4 (motor selection)
DB31, ... DBX21.5 (motor selected)
Additional references /IAD/ SINUMERIK 840D Installation and Startup Guide; Chapter: SIMODRIVE 611D
DB31, ...
DBX93.5
Drive Ready
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
Feedback signal from the drive to the PLC that the drive is ready.
Signal state 0 or
edge change
1 → 0
The drive is not ready.
The drive might be disabled for the following reasons (refer to Fig. 53):
• Enable terminals not energized (e.g. terminal 63 "Controller and pulse enable"; terminal 663
"Safe operating stop", terminal 64 "Setpoint enable")
• Drive alarm active (e.g. motor temperature has reached switchoff threshold)
• DC link voltage is too low
• Drive has not yet reached cyclic operation
• Hardware fault
• No position measuring system is active ("parking axis" state)
• I/R is not switched on
As soon as the drive is ready for operation it is stopped (depending on the fault state either with
pulse disable or fast stop) or pulse disable is maintained during ramp up.
The interface signals:
DB10 DBX108.6 (611D ready)
DB31, ... DBX61.7 (current controller active)
DB31, ... DBX61.6 (speed controller active)
are also withdrawn.
IS "611D Ready" is not available for the 840Di when used in conjunction with the drive 611U.
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