Wieland samos, Руководство пользователя

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SA-BM Base Module
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
23
Special functions
Single function 3 and combination function 5 allow the use of special functions that are
activated via a corresponding configuration on control circuit terminal
S2 .

Single function 3
This function block offers the possibility of monitoring with an external test not only
emergency stop, safety door and non-contact safety device type 4 applications (acc. to EN
61496-x) but also sensors (e.g. non-contact safety device type 2) and potential-free
contacts. When the inputs are activated in this way the test function is activated by
leaving terminal
S2 unactivated. Otherwise S2 is bridged with the supply voltage
(functions 3.1 and 3.2, see the “Control circuit functions” table on page 26 and the
“Function blocks” table on page 28).

Testable sensors on X1-I1 (terminal S2 open):
If time conditions are observed several sensors can be cascaded. Testable sensors
such as non-contact safety device type 2 light barriers (EN 61496-x) have separate
activation inputs on the transmitters. The activation inputs are used to test the sensor
function with a low signal; the base module analyses the response signal generated by
the receiver.

Testable sensors on X2-I2 (terminal S2 open):
If time conditions are observed up to four sensors can be cascaded. The time
conditions are matched specially for the GM 504S and GM 505S non-contact inductive
sensors (PDF acc. to EN 60947-5-3) made by ifm. The connection is only available on base
modules, not on input modules.
If one of the inputs I1 or I2 in not used a bridge must be installed to the respective
control output.
Inputs I3/I4 can be used as muting inputs specially for use with light curtains. They
are AND-linked to one another and OR-linked to the other inputs. The muting inputs only
act if the corresponding internal output signals of the Reset function
Q
START
on the base
module were previously high (see also pages 22 and 46).
Output Q3 functions as a muting lamp output and as sigalling output „Reset-
Required“. In this single function off delay for controlled stopping and retriggering act
only on output
Q4 .
___________________________________________________________________________

Combination function 5
Function group B can be used to monitor normal two-hand operation (synchronous
operation of two buttons within 0.5 s, function 5.1*) or two-hand operation in jog mode
(function 5.2*), e.g. for clearing a system. Here an output signal is only generated while
the controls are being pressed. Jog mode is restricted to 5 s. Releasing both controls
resets the time; repeated Reset is possible.
To activate jog mode terminal S2 remains unactivated. For other two-hand and safety
door applications S2 is bridged with the supply voltage +U
B
.
The two-hand function with two NO contacts cannot be used for operating presses,
because the safety level usually required (category 4) is not achieved. Function block 4
should be selected for press operation (EN 574 Type IIIC).
___________________________________________________________________________
Single function 3.2 Combination
function 5.2
S2 and supply voltage
unbridged
___________________________________________________________________________
Single function 3.1 Combination
function 5.1
Bridge between S2 and
supply voltage
Special function
type 2
Special function
Testable PDF
Special function
two-hand
* For the functions see
also the "Control circuit
function" table on page
26 and the "Function
block overview" table on
page 30).
Configuration