Connecting
4.3 Loop-through connection of PROFINET IO and supply voltage
RF180C communication module
Operating Instructions, 12/2012, J31069-D0177-U001-A6-7618
27
NOTICE
Ensuring the degree of protection
The IP65, IP66 or IP67 degree of protection is no longer guaranteed when the connection
block is dismounted.
Notes for wiring
● If you are wiring your structure, then you must take into account the impact of cable
length on supply voltage to the RF180C.
Example:
When using a 10 m long cable with a diameter of 1.5 mm
2
, the voltage drop is 2.5 V with
a loading of 10 A. This corresponds to 0.25 V at a 1 A load.
● The maximum infeed current for connection block M12, 7/8" is 6 A at 1L+ and 8 A at 2L+.
These values must not be exceeded.
● The maximum infeed current of the push-pull connection block is 12 A for 1L+ and 2L+ at
up to 40 °C and 8 A for 1L+ and 2L+ at up to 60 °C. These values must not be exceeded.
● Adhere to the current carrying capacity of the connected cables, which depends on the
conductor material, the conductor cross-section and the ambient temperature.
NOTICE
Damage to the device
If you do not observe the maximum infeed current and the cable cross-section required,
this may result in the cable isolation and contacts overheating and to the device being
damaged.
NOTICE
Damage to the device
A cable cross-section of 2.5 mm² is mandatory for an amperage > 8 A!
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