Signals From Axis/Spindle (Db31 - Siemens SINUMERIK 840Di Function Manual
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Detailed Description
2.1 Various interface signals and functions (A2)
2.1.9
Signals from axis/spindle (DB31, ...)
DB31, ...
DBX61.0
Drive test travel request
Edge evaluation: no
Signal state 1 or
The control signals that all of the traversing conditions for the drives are fulfilled.
edge change
Prerequisites for this are:
0 → 1
•
•
Signal state 0 or
The control signals that the axes cannot be moved.
edge change
Axes cannot be moved for:
1 → 0
•
•
This means that the prerequisites specified above are not fulfilled.
Further references
/IAD/ SINUMERIK 840D Installation and Startup Guide; Chapter: SIMODRIVE 611D
or
/IAC/ SINUMERIK 810D Installation and Start-up Guide
DB31, ...
DBX61.3
Follow-up mode active
Edge evaluation: no
Signal state 1 or
The control signals that the follow-up mode for the axis/spindle is not active.
edge change
Prerequisites for this are:
0 → 1
•
•
The position setpoint continually tracks the actual value while the follow-up mode is active.
Zero speed and clamping monitoring are not active.
Signal state 0 or
The control signals that follow-up mode for the axis/spindle is not active.
edge change
Zero speed and clamping monitoring are active.
1 → 0
This means that the above specified prerequisites are not fulfilled.
In the "hold" state, the interface signal:
DB31, ... DBX61.3 (follow-up mode active)
is 0.
Special cases,
Notice:
errors, ....
A delete distance-to-go is triggered internally in the control on transition from "Follow-up" to "Hold"
(IS "Follow-up mode" = 0) or in the closed-loop control mode (IS "Controller enable" = 1).
2-42
Signal(s) updated: cyclic
The mechanical brake of the axis involved was previously released and all other axis traversing
conditions are fulfilled.
With:
DB31, ... DBX61.0 (drive test, travel request) = 1 signal
the appropriate axes can be moved.
The axis disable:
DB31, ... DBX1.3 (axis/spindle disable) = 1 signal
is not active.
DB31, ... DBX61.0 (drive test, travel request) = 0 signal
In the control when faults are present
Signal(s) updated: cyclic
The controller enable for the drive has been withdrawn (either by the PLC with "controller
enable" = 0 signal or inside the control for faults; refer to the references)
Follow-up operation is selected (either by the PLC with IS "follow-up operation" = 1 signal or in
the control, e.g. when withdrawing the controller enable from an axis that is moving)
NC/PLC Interface Signals (Z1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
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