SA-BM Base Module
20
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
Input Circuit Functions
Using the rotary
FUNCTION
switch on the front you can set 8 function blocks as single,
combination or dual functions. On their own or in appropriate combinations these function
blocks cover the main fields of safety application. Using terminal combinations you can set
Reset behavior for manual/automatic Reset (page 24), off delay retriggering (page 25) and
special functions (page 23). Switch positions 0 and 9 are without function and must not be
used.
Single functions 1 to 4
The input circuits of function groups
A
and
B
act jointly on output circuits
Q1
to
Q4
(exception: function 3 with
Q3
as muting lamp / Reset required output). In functions 1
and 2 settable off delay and retriggering act jointly on outputs
Q3
and
Q4;
in function 3
only on
Q4;
in function 4 no off delay can be set.
Combination functions 5 to 7
The input circuits of function group
A
act directly on all output circuits
Q1
to
Q4
; the input
circuits of function group
B
act on output circuits
Q3
and
Q4
.
They are AND-linked via the internal logic with input circuits
A
. This allows the safety
concept found on many machines (two safety zones, one group subordinate) to be
reproduced within the device. With the exception of function 5 (for which no off delay is
settable) the settable off delay and retriggering act only on output
Q4
.
Dual function
The input circuits of function groups
A
and
B
act separately on output circuits
Q1
,
Q2
or
Q3
,
Q4
. This means that with one base module you can monitor two independent safety
groups on a machine or system. Settable off delay and retriggering act only on output
Q4
.
Evaluating input circuits / function blocks
The diagram shows three different types of evaluation and the signal flows between inputs
and outputs for single function 1, combination function 6 and dual function 8. The diagram
is an excerpt from the function overview (see page 30).
together linked separate
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