Description of the software
6.7 Functions
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
177
6.7.3.8 Mode selector switch
Description
With the function "Mode selector switch", the signals from the mode selector switch are
evaluated by means of NO contacts. Up to 5 operating modes can be defined. In the
downstream logic, you can parameterize the operating mode to be implemented as required.
The outputs Q1 to Q5 are assigned to the inputs IN1 to IN5. When the input IN1 is activated,
the function output Q1 is activated, i.e. set to "1". Further input and output pairs respond
analogously.
If a start function is required for releasing an operating mode, this can be implemented with
the "Start functions".
The contact switchover time is 1000 ms, that is, a switch must be made between the
operating modes within this time.
Parameters
Parameter name Description/parameter value
Name You can enter a name for the element here.
Element number Consecutive number which is automatically assigned. You can
change the number.
Element activated When this parameter is active, the function is processed in the
safety logic.
When this parameter is deactivated, the set substitute value is
made available at the output Q.
General
Function output substitute
value
"0" or "1" can be assigned to the substitute value when the
element is deactivated.
Substitute value "0" means output Q = 0
substitute value "1" means output Q = 1
The following parameters are possible with the mode selector
switch:
• All function outputs = 0
• Only function output 1 = 1
• Only function output 2 = 1
• Only function output 3 = 1
• Only function output 4 = 1
• Only function output 5 = 1
Parameter Type of switch Select the required step switch:
1 out of 2, 1 out of 3, 1 out of 4, 1 out of 5
Type This parameter cannot be edited.
• Single-channel (NO)
INx is monitored for "1", i.e. the function output Qx is
deactivated when there is a "0" signal.
IN1 Select the input to be processed by the function.
IN2 Select the input to be processed by the function.
Parameter - Input
IN3 Only with switch type 1 out of 3; 1 out of 4 or 1 out of 5
Select the input to be processed by the function.