44 Connect Devices
WAGO I/O SYSTEM 750 XTR
750-481/040-000 2AI RTD Ex i XTR
Manual
Version 1.1.0
6.2
Power Supply Concept
Ex i XTR I/O modules shall only be supplied via “Power Supply 24 VDC
Diagn for Ex i XTR Modules”
Ex i XTR I/O modules shall only be operated with a “Power Supply 24 VDC
Diagn for Ex i XTR Modules” 750-606/040-000.
Requirements for Clearances and Creepage Distances
For all sections of a node that contain I/O modules for Ex-i use, stricter require-
ments with regard to clearances and creepage distances apply.
•
Before such a node section, the respective
Power supply 24 VDC Diagn
for Ex i XTR Modules
(
750-606/040-000
) ensures the required distance.
•
After such a node section,
4 Distance Modules XTR (750-616/040-000)
must be used.
Exception: If the following section consists only of an
End Module XTR
(750-600)
, no distance modules are required.
Do not exceed maximum current via power contacts!
The maximum current available from the “Power Supply 24 VDC Diagn for Ex i
XTR Modules” 750-606/040-000 is 1 A.
When configuring the system, ensure that this current is not exceeded.
If exceeded, an additional 750-606/040-000 must be used.
Keep the air and creep distances between intrinsically safe segments!
The maximum current available from the 750-606/040-000 “Power Supply
24 VDC Diagn for Ex i XTR Modules” is 1 A.
If the use of further 750-606/040-000 is necessary for reasons of extent of
utilization, 4 Distance Modules XTR (750-616/040-000) must be used to
guarantee the distance between the intrinsically safe segments.
Further information about explosion prevention!
Further information about explosion prevention can be found in section “Use in
Hazardous Environments”!
The Ex i XTR I/O module (750-481/040-000) receives the 24 V voltage supply
potential and the 0V potential for the field level from an upstream Ex i XTR I/O
module or from the “Power Supply 24 VDC Diagn for Ex i XTR Modules” 750-