ABB FSO-12, Руководство пользователя

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Configuration 227
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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
Cascade on page 53 .
1. Define one of the FSO modules as the master and the other FSO modules are
followers:
•
In the master FSO: SAFEIO.11 M/F mode for cascade =
A = master, B = master.
• In the follower FSOs: SAFEIO.11 M/F mode for cascade =
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 = X113:2 -> X113:8.
3. Set the acknowledgement method in the master FSO modules ( Manual ):
• STO.02 STO acknowledgement
=
Manual
4. Set the acknowledgement method in the follower FSO modules ( Automatic ).
• STO.02 STO acknowledgement = Automatic
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 = DI X113:1&X114:1 )
• The SSE function is cascaded with a single connection in the follower FSOs
(
SSE.12 SSE input B = DI X113:2 , SSE.21 SSE output = DO X113:8 ).
Note : Do not use the completed output of the safety function as the cascaded
output (parameter ( SSE.22 SSE completed output = None ).
6. Set the digital input for the acknowledgement button in the master FSO module:
• FSOGEN.42 Acknowledgement button input = DI X113:4.
7. Set the other parameters related to the SSE function as defined in section
Configuring SSE on page 248 .