Kübler SMC1.3, Руководство по безопасности

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R60047.0002 - Index 2 EN – page 17 / 115
5.3 Encoder Inputs
The incremental encoder is connected by one or both of the pluggable 11-position
terminal [X21 | ENCODER IN 1] and [X22 | ENCODER IN 2]. The zero pulses (Z or/Z) do
not have to be connected.
Encoder signals can be connected in the format RS422, HTL differential (both with A, /A,
B, /B and 90 ° phase offset) and HTL single ended (A, B 90 °) and only single lane HTL
signals (A).
Pluggable 11-position terminal [X21], [X22]
l
The characteristics of the encoder inputs must be set in the Sensor menu.
No external networks may be connected to the encoder signals.
The encoder supply must be connected via the respective terminal.
•
For unbalanced single channel signals, the parameter “Edge 1” and
“Edge 2” must be set to 1, so that a stable frequency can be
detected.
•
With single channel encoders, jitter around an edge can be
misinterpreted as a frequency
.
•
The use of single track HTL signals (HTL single ended) can reduce the
Safety Integrity Level (SIL) or the Performance Level (PL). At SMC1.3,
SIL2/PLd encoder in HTL single ended configuration is not allowed,
as no sensor errors can be detected anymore.
•
The final Safety Integrity Level (SIL) and Performance Level (PL)
depends on the selected configuration and on external components
connected to the unit.