Product description
EL2911 and EL2911-2200 23Version: 2.0.0
CAUTION
Exceptions
Exceptions to the general requirement are allowed only if the manufacturer of the connected load
guarantees that feedback to the control input cannot occur.
Cable short-circuit fault exclusion
It must be possible to avoid the risk of feedback due to a short circuit in the line through further measures.
The following measures can be implemented as an alternative.
Fig.6: protected wiring
Alternative 1: Load connection via separate sheathed cables
The non-safely switched potential of the standard terminal may not be conducted together with other
potential-conducting cores inside the same sheathed cable
Alternative 2: Wiring only inside the control cabinet
All loads connected to the non-safe standard terminals must be located in the same control cabinet as the
terminals. The cables are routed entirely inside the control cabinet.
Alternative 3: Dedicated earth connection per conductor
All conductors connected to the non-safe standard terminals are protected by a separate ground connection.
Alternative 4: Permanent (fixed) wiring, protected from external damage
All conductors connected to the non-safe standard terminals are permanently installed and protected from
external damage, e.g. through a cable duct or an armored conduit.
CAUTION
Fault exclusion
The machine manufacturer or the user is solely responsible for the correct execution and evaluation of the
applied alternatives.
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