External outputs connected to safe I/O inputs
This example shows how to connect an external output with test pulse to a safe
I/O input. This can be implemented by setting up SDI as input without test pulses.
Note
The OSSD test pulse must be lower than the filter time.
If the safe I/O SDI is disturbed by the OSSD test pulses, the configuration value
Safety Input X On_Off Delay
can be increased.
Safe I/O
OSSD test pulses
SDI_1
GND
OUT
GND
OUT
GND
SDI_2
GND
Safety
controller
Industrial network
Safety device
GND
GND
GND
GND
xx2200000938
Values/Remarks
Configuration element
Increasing this parameters will extend the
time required for the SDI to switch from On
to Off.
Safety Input X On_Off Delay
2 (input, no dependency on test out)
Safety Input X Input channel Mode
Application manual - Scalable I/O
47
3HAC070208-001 Revision: F
© Copyright 2019-2022 ABB. All rights reserved.
3 Hardware installation
3.3 Installing safety digital base devices
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Содержание Scalable I/O
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