Reasonably Foreseeable Misuse Of The Enable Switch - B&R Mobile Panel 40 User Manual

To calculate the PL of the enabling
included in the calculation. For details about calculating the PL for the entire
(see section "Selecting the performance level and category per EN ISO 13849-1" on page
2.2.2.2 Reasonably foreseeable misuse of the enable
"Reasonably foreseeable misuse" refers to the unauthorized use of other materials to hold the enable
enable position. This reasonably foreseeable misuse must be minimized.
Warning!
• The enable
recognize danger to personnel early enough to immediately take appropriate action to prevent
it! As an additional measure, reduced speed of the movement may be required. The permissible
speed must be determined by a risk assessment.
• Using the enable
mitted. A second intentional start command is required for this (key on
• The only person permitted in the danger zone is the person actuating the enable switch.
• See chapter
regarding the enabling device.
Device with 1 enable switch
The following measures are therefore recommended for stopping the
• Querying the enable
manual mode (the enable
• Setting up a mechanism whereby the enable
and only then brought back to position "Enable". The length of this time frame
to the task at hand.
Device with 2 enable switches
The following measures are therefore recommended for stopping the
• If one of the enable switches is already pressed when switching on manual operation, the enabling
at the output will not be enabled.
• If an enable switch
enabling signal is canceled. The enabling
again.
Mobile Panel 40/50 User's manual V1.80
safety function, the PL and B
switch is only suitable as a protective function if the person activating it is able to
switch by itself to issue commands that initiate dangerous states is not per-
"Standards and certifications" on page 88
switch when switching on the machine/system and when switching from automatic to
switch is not permitted to be in position "Enable").
is held down in the enabling position for more than 15 minutes during operation, the
values of the involved components must be
10d
switch
machine
switch must be released within a predetermined period of time
machine
signal is canceled until the enable
safety function, see EN ISO
96).
control device).
for additional important information
during manual operation:
can be chosen according
during manual operation:
switch is released and pressed
Technical data
13849-1
switch in the
signal
21