Safety protector
10.3 Configuration Variants
Fail-safe signal modules
300
Installation and Operating Manual, 01/2010, A5E00085586-10
Note
Measures to be taken for overvoltage protection in safety mode:
Always install the standard signal modules to the left of the safety protector; fail-safe
signal modules are installed to the right of the safety protector.
Ground the mounting rail.
Bond the safety protector to functional ground. Interconnect pins 19 and 20 on the 20-pin
front connector of the safety protector with the mounting rail using one cable each of the
shortest possible length (conductor cross-section = 1.5 mm
2
).
Replacing modules in ET 200M when operating in safety mode
You can hot-swap all ET 200M submodules in a configuration with active bus modules,
with
the exception of the safety protector.
WARNING
The safety protector (order no. 6ES7195-7HG00-0XA0) must be inserted at all times when
operating the bus module for the safety protector. The bus module is only used to couple
the safety protector to the active backplane bus.
DO NOT insert or remove the safety protector when the system is in operation! (any
insertion or removal would inevitably lead to failure of the ET 200M.)
