It is possible to connect loads with a maximum current consumption of 0.5 A in relation
to ground to the non-safe outputs (AUX_OUT) on the FLN-OSSD1100108 and FLN-
EMSS1100108 Flexi Loop nodes.
A maximum total current of 2 A is allowed to flow through the VDC pins (1 and 2) of the
8-pin M12 female connector on the MSTR Flexi Loop accessory. Use both power supply
pins (1 and 2) and both GND pins (5 and 6) on the MSTR Flexi Loop accessory for the
power supply.
A maximum current of 2 A is permitted to flow through the pins of each of the Flexi
Loop YCON1 and YCON2 adapters.
4.1.4
Connection facilities
DANGER
Never cut into the connection cables between the Flexi Loop nodes!
If the cables for the safe sensor cascade are cut into, e.g. to supply the cascade directly
using a separate power supply, then several power supplies will be connected in paral‐
lel. This situation can result in overcurrent and a cable fire in case of a ground fault.
To the power source for the Flexi Soft safety controller
Figure 26: Direct connection to the power source for the Flexi Soft safety controller
1
Power flow
2
Data flow
NOTE
Limit the current flowing through a section of the safe sensor cascade to a maximum of
4 A!
If you connect a safe sensor cascade directly to the power source for the safety control‐
ler, then you must limit the current to 4 A by means of suitable measures.
The power supply must then either shut down automatically at currents above 4 A, or
you must insert a 4 A slow-blow fuse in-line.
4)
Make sure the current drawn via VDC and AUX_OUT flows back via the GND pin.
4
DESIGN
28
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