How To Configure A Cascaded System - ABB FSO-21 User Manual

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How to configure a cascaded system

This example shows how to configure the SSE function in a cascaded system
(Cascade A) as shown in section
1. Define one of the FSO modules as the master and the other FSO modules are
followers:
• In the master FSO:
A = master, B = master.
• In the follower FSOs:
A = follower, B = follower.
2. Connect a digital input to the corresponding digital output in the cascaded system
(single cascade X113:2 -> X113:8):
• SAFEIO.12 Cascade A
3. Set the acknowledgement method in the master FSO modules (Manual):
• STO.02 STO acknowledgement
4. Set the acknowledgement method in the follower FSO modules (Automatic).
• STO.02 STO acknowledgement
5. Set the digital inputs and outputs of the SSE function as defined for the cascaded
system:
• The SSE function is activated from a redundant digital input in the master FSO
(SSE.11 SSE input A
• The SSE function is cascaded with a single connection in the follower FSOs
(SSE.12 SSE input B
Note: Do not use the completed output of the safety function as the cascaded
output (parameter
6. Set the digital input for the acknowledgement button in the master FSO module:
• FSOGEN.42 Acknowledgement button input
7. Set the other parameters related to the SSE function as defined in section
Configuring SSE
Cascade
SAFEIO.11 M/F mode for cascade
SAFEIO.11 M/F mode for cascade
= X113:2 -> X113:8.
= DI X113:1&X114:1)
= DI X113:2,
(SSE.22 SSE completed output
on page 284.
on page 55.
Manual
=
= Automatic
SSE.21 SSE output
= DI X113:4.
Configuration 257
=
=
= DO X113:8).
= None).