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14
Device Description
WAGO-I/O-SYSTEM 750
750-481/003-000 2AI RTD Ex i
The Ex i I/O modules shall only be supplied using the Ex i 24VDC potential
feed module!
An additional supply module 750-625, DC 24 V Ex i must be added for the
approved intrinsically safe field side supply voltage of 24 V.
Ex i
606/625
435
535
485
585
Ex i
Ex i
Ex i
Ex i
24V
24V
24V
*
Electronic
Field
Potential 1
Field
Potential 2
End
module
Bus coupler / Controller
I/O modules
* 750-606 with electronic fuse and diagnostics
750-625 with wire fuse, without diagnostics
750-625/000-001 with electronic fuse, without diagnostics
Figure 1: Supply Principle Ex i
Po
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The Ex i I/O module receives the 24V voltage supply for the field level from an
upstream Ex i I/O module or from an Ex i power supply module via the power
contacts used as blade contacts. It then provides this potential to subsequent I/O
modules via the power contacts used as spring contacts.
Po
s: 17.15 /Serie 750 (WAGO-I/O-SYSTEM)/Wichtige Erläuterungen/Sicherheitshinweise/Achtung/Achtung: Maximaler Strom Ex i Einspeisung 750-06xx 0,5 A / 1,0 A @ 7\mod_1274358256668_21.doc @ 56898 @ @ 1
Do not exceed maximum current via power contacts!
The maximum current available from the 750-625 Ex-i Supply Module is
500 mA.
The maximum current available from the 750-606 or 750-625/000-001 Ex-i
Supply Module is 1000 mA.
Greater currents can damage the power contacts.
When configuring the system, ensure that this current is not exceeded. If
exceeded, an additional potential feed module must be used.
s: 17.16 /Serie 750 (WAGO-I/O-SYSTEM)/Wichtige Erläuterungen/Sicherheitshinweise/Warnung/Warnung: Ex i Luft- und Kriechstrecken einhalten @ 4\mod_1241505101078_21.doc @ 32290 @ @ 1
Po
Manual
1.1.0