System Manual Safety System MGB-AR in Combination with a Locking Module
4
Important!
In the estimation of the PL for the overall system, a maximum value of
100 years can be assumed for the MTTF
d
according to the limit value in
EN ISO 1849-1:008, Section 4.5.. This corresponds to a minimum value
for the PFH
d
of .47 x 10
-8
/h.
When up to 10 devices are connected in series, these limit values can be
assumed for the entire switch chain as a subsystem. As a subsystem, this
switch chain achieves PL e.
Exclusion of Liability and Warranty
In case of failure to comply with the conditions for correct use stated above, or
if the safety instructions are not followed, or if any servicing is not performed as
required, liability will be excluded and the warranty void.
General Safety Instructions
Safety switches fulfill personal protection functions. Incorrect installation or tamper-
ing can lead to fatal injuries to personnel.
Check the safe function of the safety guard particularly
after any setup work
after the replacement of an MGB component
after an extended period without use
after every fault
Independent of these checks, the safe function of the safety guard should be
checked at suitable intervals as part of the maintenance schedule.
Warning!
Loss of safety function in the event of incorrect connection or incorrect use.
Safety switches must not be bypassed (bridging of contacts), turned away,
removed or otherwise rendered ineffective.
On this topic pay attention in particular to the measures for reducing the pos-
sibility of bypassing from EN 1088:1995+A:008, section 5.7.
The switching operation is only allowed to be triggered by the intended han-
dle module MGB-H... that is positively fastened to the safety guard.
The device is only allowed to be installed and placed in operation by authorized
personnel
who are familiar with the correct handling of safety components
who are familiar with the applicable EMC regulations
who are familiar with the applicable regulations on health and safety
who have read and understood the operating instructions and the system
manual
