SA-IN Input Module
36
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
Input Circuit Functions
You can set one of 10 input functions (0–9) for each function group using the
INPUT A
and
INPUT B
rotary switches on the front. The input signals are evaluated internally (depending
on switch position, for example for cross-circuit and simultaneity) and passed in groups on
the safety bus to the base module to the left. There they are linked logically with the
corresponding function group
A
or
B
. Several input modules can be assigned to one base
module. The effect of the input module groups on the associated base module depends on
the function block set there.
F
unction blocks 1 - 4:
the inputs of both function groups on the input module (
A
+
B
) will
act together on the selected base module function (AND operation).
F
unction blocks 5 - 8:
the inputs of both function groups on the input module
A
resp.
B
will act separately on the respective group on the base module function.
___________________________________________________________________________
Evaluating inputs
Sensor
connection
Evaluation
Application
e.g.
INPUT A
INPUT B
Cat.
up
Single-channel
All four inputs of each function group (
A, B
) are
single-channel and linked by a logical AND. The
inputs
I
n
expect test pulses, which are generated
on the associated outputs
X
n
.
1
2
Single-channel testable sensors
Type 2 non-contact safety devices (light
barriers)
Testable sensors (e.g. type 2 non-contact
safety devices) are monitored. All four inputs of
each function group (
A, B
) are single-channel
and linked by a logical AND. The inputs
I
n
expect test pulses, which are generated on the
associated outputs
X
n
. You can also cascade
several light barriers. Also observe the test
pulse data for the sensors (non-contact safety
device, PDF, ...) and the
samos
module!
1
2
Dual-channel equivalent
(with cross-circuit monitoring,
with/without synchronous time monitoring 1
s)
Two pairs are formed from the four inputs of a
function group (e.g. group
A
:
I1/I2
and
I3/I4
)**.
A valid ON signal is only generated if ON state
is present at both inputs of a pair and both
were previously in OFF state (L-level) (flipflop).
Both pairs are then linked by a logical AND.
3 / 2
4
Dual-channel equivalent
(without cross-circuit monitoring)
As above, but without cross-circuit monitoring.
Can also be operated as dual-channel three-
wire circuit.
6
3
* Maximum control
category (depends on
sensor, wiring and
installation). Please also
note the information on
page 13.
** Pairs of inputs
Group A:
I1/I2 and I3/I4,
Group B:
I5/I6 and I7/I8.
Содержание samos
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