B&R Mobile Panel 40 User Manual page 20

Technical data
2.2.2.1.2 Enable
Position "Enable" is the normal operating mode for the enable switch. In this position, it is possible to initiate an
axis movement by subsequently pressing a direction key, for example.
When actuated, the enable
position "Zero".
2.2.2.1.3 Panic
If the enable switch is fully actuated (position "Enable" to position "Panic") and released, then the
to position "Zero" by skipping over position "Enable".
Safety category 3 PL d
circuits and suitable monitoring for short circuits and cross faults of these circuits.
Safety category 3 PL d means that 1 fault is not permitted to lead to a loss of
practicable, the individual fault is detected.
Connection examples "Connection example for stop button" on page 70
switch" on page 71 show how
related components. It is important to note that the entire concept of the
Simultaneity monitoring by the monitoring
errors could occur that would lead to a loss of safety:
Example:
If one channel of the enabling equipment switches to "Enabled" due to an error and, after an unspecified amount
of time, another error causes the second channel to also
longer be able to cut off the system.
EN 60204-1 also stipulates that the enabling
energy must be cut off.
20
Panic
Enable
Zero
Figure 6: Enable
switch moves from position "Zero" to position "Enable". When released, it returns to
Panic
Enable
Zero
Figure 7: Enable
Panik
Zustimmung
Null
Figure 8: Enable
can be achieved per EN ISO
safety category 3 PL d
device
device
switch - Zero position
switch - Enable
switch - Panic
13849-1:2008 by implementing the enabling
can be achieved with the Mobile Panel and its safety-
machine
is required because otherwise an undetected accumulation of
switch to "Enabled", then the enable
must be connected to a category 0 or 1 stop, i.e. that the
Time
Time
switch
Zeit
safety and whenever reasonably
and "Connection example for enable
must be designed for this.
switch
Mobile Panel 40/50 User's manual V1.80
will return
device with 2
would no