ABB FSO-21, Руководство пользователя

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320 Configuration
The location of the input and output terminals on the FSO module is shown in section
Layout on page 38 .
Inputs
Inputs can be configured into use with different safety functions. It is possible to
select either single or redundant inputs in use. For example, if a single input X113:1 is
supposed to activate the STO function, user must configure this input in use in the
STO configuration view.
There are input A and input B for the safety functions. User can use them either for
cascading, or for connecting two different and independent activation switches for the
same function.
It is possible to set diagnostic pulses for the inputs. User must set the pulse length
and period, and also define the inputs which use the pulses.
Outputs
Outputs can be configured into use for different safety functions ( Safety function
indications on page 58 ), a safety relay, the SBC function, and a cascade loop. User
can select the output type (single or redundant output), and set the logic state for
each digital output. The logic state of output can be configured to be active low or
active high.
For some of the safety functions, output A and output B are available. This enables
the use of cascaded functions, and the function specific indications.
It is possible to set diagnostic pulses for the outputs. User must set the pulse length
and period, and also define the outputs which use the pulses.
Note: Make sure that the I/O configuration for safety functions is set up according to
the circuit diagrams.
Safety relay output
The safety relay output is used to the control of the safety relay. This output is
redundant and has a feedback input.
I/O redundancy
Redundant input or output is configured by selecting I/O pair to safety function I/O
parameter. For example, redundant input for STO function: DI X113:1 & X114:1 must
be configured either to STO input A or input B.