Siemens SINUMERIK 840Di Function Manual page 1902

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Detailed Description

2.1 Various interface signals and functions (A2)

Speed setpoint smoothing

Signal state 0 or

No smoothing of the speed setpoint value is requested by the PLC.

With this interface signal, speed setpoint smoothing can - for example - be activated from the PLC

user program for a spindle during speed control to achieve smooth torque output. Speed setpoint

smoothing can therefore be deactivated when the spindle is in positioning mode.

Special cases,

errors, ....

Corresponding to ....

DB31, ... DBX92.3 (speed setpoint smoothing active)

Additional references /IAD/ SINUMERIK 840D Startup Guide; Chapter: SIMODRIVE 611D

DBX21.0 - DBX21.2

Drive parameter set selection A, B, C

Edge evaluation: no

With bit combinations A, B and C it is possible to select 8 different drive parameter sets for the

digital drives SIMODRIVE 611D/611U/SINUMERIK 810D.

The following assignment applies:

The switchable drive parameters are as follows:

As soon as the new drive parameter becomes effective, the drive signals this to the PLC using the

interface signals:

DB31, ... DBX93.0, 1 and 2 (active parameter set).

Signal(s) updated: cyclic

Current setpoint filters (low-pass, band-stop); for adaptation to the mechanics

Motor speed normalization

Speed controller parameters

Speed setpoint filter

Speed monitoring data

NC/PLC Interface Signals (Z1)

Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0

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