Power Supply Concept; Figure 12: Power Supply Concept Gl/Lr - WAGO 750-626/xxx-xxx Manual

30 Connect Devices
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5.2

Power Supply Concept

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The following illustration shows the power supply concept of a WAGO-I/O-
SYSTEM 750 fieldbus node for the certified application according to GL/LR.

Figure 12: Power supply concept GL/LR

The 24 V system power supply of the coupler / controller must be filtered using
the filter module 750-626 and protected against overvoltages.
The 24 V field power supplies must be protected against overvoltage using the
filter modules 750-624 or 750-626.
When supplying the ground (earth) potential via the power jumper contacts or if a
fuse protection or monitoring of the field power supply is required, a supply
module 750-601 (24 V power supply with fuse), 750-602 (24 V power supply
without fuse) or 750-610 (24 V power supply with fuse and diagnostics) should be
used in addition to the filter module 750-626.
Otherwise the use of a supply module is not required in addition to the filter
module 750-626. The downstream modules can then be directly supplied via the
power jumper contacts of the filter module 750-626.
For each additional 24 V field side power supply, a filter module 750-624 is to be
used in addition to the supply module 750-601, 750-602 or 750-610.
No filter module is required using 230 V field side power supply.
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WAGO-I/O-SYSTEM 750
750-626 24V DC Power Supply Filter
Manual
Version 1.4.0