Motrona DS230 Series, Safety Manual

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Ds230_03a_oi_e.doc / Jun-15 Page 23 / 100
5.7. RS422-Splitter-Output
(only DS230 and DS240)
The DS230 respective the DS240 has a safety-related RS422-Splitter-Output. Depending on the
selected operating mode, the integrated splitter function allows to reproduce an input frequency to
the output terminal X4 | RS422 OUT. Thereby the RS422 signal can be processed by a further device.
The block diagrams (see chapter
4 ) give an overview.
The device evaluates two frequency channels. Which input is assigned to which channel is set in the
operating mode (see chapter
7.4.1 / Parameter 000). The splitter output allows to reproduce the
input frequency from one of these channels (see chapter 7.4.9 ).
Independent from the input signal (SinCos resp. HTL), always incremental RS422 square-wave
pulses are generated at [X4 | RS422 OUT].
The signal delay time between the RS422 input and the RS422 output is approximately 600 ns.
In case of an error, no more incremental signals are available at the RS422 output (Tri-State with
pull-down cut off).
The connection to the RS422 Splitter output is only safe if the following device is capable to detect
the error state of the safety unit.
pluggable 7-pin screw terminal [X4]
In DS230 / DS240 versions, the screw terminal [X4] is provided with 7 connections:
[X4 | ANALOG OUT] analog output
[X4:1-3]
[X4 | RS422 OUT] RS422 output [X4:4-7]
In DS236 / DS246 versions, the screw terminal [X4] has only 3 connections:
[X4 | ANALOG OUT] analog output
[X4:1-3]
[X4 | RS422 OUT] not available!
With DS240 variants only the encoder frequency connected at input terminal
[X6 | SINCOS IN 1] can be exported to the RS422 splitter output.