WAGO-I/O-SYSTEM 750
Connect Devices
43
750-484 2 AI 4-20 mA HART Ex i
Manual
V 1.2.0 HW-Version 04, SW-Version 03
7.2
Power Supply Concept
Ex i I/O modules shall only be supplied via Ex i 24VDC power supply
module!
Ex i I/O modules shall only be operated with an Ex i 24VDC power supply
module.
Keep the air and creep distances between intrinsically safe segments!
The maximum current available from the 750-606 or 750-625/000-001 Ex-i
Supply Module is 1 A.
If the use of further DC 24 V Ex i Supply modules is necessary for reasons of
extent of utilization, four Separation Modules (750-616) must be used to
guarantee the distance between the intrinsically safe segments.
Do not exceed maximum current via power contacts!
The maximum current available from the 750-606 or 750-625/000-001 Ex-i
Supply Module is 1 A.
When configuring the system, ensure that this current is not exceeded.
If exceeded, an additional potential feed module must be used.
Further information about explosion prevention!
Further information about explosion prevention can be found in section “Use in
Hazardous Environments”!
The Ex i I/O module receives the 24 V 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.
