turck TBPN-L1-FDIO1-2IOL - Connection; Supply (PELV); Connect the Supply Voltage 7;8

Mounting and connecting
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | F +49 208 4952-264 | more@turck.com | www.turck.com
34
4.3 Connection
4.3.1 24 V supply (PELV)
External supply of sensors/actuators
Please observe, that sensors/actuators with an external power supply can be connected to TBPN-L1-
FDIO1-2IOL. In this case, please observe the power supply through PELV supply units as well.
Decoupling of external electrical circuits
External electrical circuits not designed as PELV-circuits have to be decoupled via optocoupler, relay
or by other measures.
WARNING!
Potential differences
Dangerous additions of voltages
h Avoid potential differences between internal and external load voltage supplies 
(24 V DC).
4.3.2 Connect the supply voltage 7/8"
We recommend the use of pre-assembled 5-pole power supply cables,
Turck-Typ 52 (z.B. RKM52-1-RSM52)
Suitable cables can be found on www.turck.de under "Products o Fieldbus
technology oAcces-
sories".
WARNING!
Wrong selection of the 24 V power supply unit
Dangerous voltage and loss of functional safety
h Only use power supply units with PELV according to EN50179/BDE016 (PELV).
h Assure that the maximum output voltage not exceeds 32 V even in case of an error.