6 Electrical installation
6.1 Safety
DANGER
Hazar
d due to electrical voltage
Hazard due to unexpected starting of the machine
b
Make sure that the machine is and remains disconnected from the power supply
during the electrical installation.
b
Make sure that the dangerous state of the machine is and remains switched off.
b
Always use a suitable power supply.
b
Make sure that the outputs of the safety controller have no effect on the machine
during electrical installation.
NOTE
•
The saf
e sensor cascade complies with the Radio Safety Requirements (EMC) for
the industrial sector (Radio Safety Class A). It may cause radio interference if used
in a residential area.
•
All electrical equipment must be installed conforming to EN 60204-1.
•
The device voltage supply must be capable of buffering brief power failures of
20 ms, for example, as specified in EN 602041 .
•
The voltage supply and all connected signals must meet the requirements for
extra-low voltages with safe separation (SELV / PELV) as specified in EN 60664.
•
All safety sensors and actuators connected as well as wiring and installation have
to fulfil the required safety characteristics.
•
On the replacement of a Flexi Loop node, it must be ensured the pin assignment is
made correctly, e.g. by marking or laying in a suitable manner.
•
The safe sensor cascade must be disconnected from the voltage supply before
any changes are made.
6.2 Connections
6.2.1 Connection to Flexi Soft
Figure 40: Terminals on Flexi Soft expansion modules
1
Terminals for inputs and outputs
The figure shows the terminals for inputs and outputs based on the example of the FX3-
XTDI e
xpansion module. The terminal pin assignments are listed in the “Flexi Soft Mod‐
ular Safety Controller Hardware” operating instructions.
6 ELECTRIC
AL INSTALLATION
42
O P E R A T I N G I N S T R U C T I O N S | Flexi Loop 8015836/YT10/2016-05-24 | SICK
Subject to change without notice
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