Installation
2
0
1
8
-1
2
33
3.5
Inserting and Removing Modules
The connector pins on the modules and the female connectors on the backplane form a
flameproof enclosure when plugged together.
Figure 3.3
Flameproof enclosure
Danger!
Explosion hazard when connecting or disconnecting the field connections on the module.
I/O modules with Ex-e front ports require additional measures to be disconnected during
operation.
Do not connect or disconnect the module while the circuit is live and while it cannot be
guaranteed that the surroundings do not present an explosion hazard.
Danger!
Explosion hazard from damaged connector pins
Bent or damaged pins on modules can generate a spark, which can cause explosive mixtures
to ignite.
n
Never use modules with bent or damaged connector pins.
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If the connector pins are bent or damaged, replace the module with an intact original
module.
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You are not permitted to repair modules with bent connector pins yourself.
