10.10.3.9 FET-OR Module Redundant Operation
The FET-OR module decouples the output of two power supply units and ensures safe redundancy. One redundancy module
is needed to decouple two parallel connected power supplies (device 1 and 2) with nominal currents of up to 10 A.
Redundancy Diode Decoupling
The Auto Current Balance (ACB) technology is used to double the operation life of redundant power supply units. The load
current is automatically distributed symmetrically to evenly load both power supply units. Use connection cables of the same
length and cross section.
Surge Protection
Inputs IN 1 and IN 2 are equipped with a protective circuit that is triggered in the event of static surge voltages greater than 30
V. Two input voltages must be present that are independent of each other.
PDM Power Distribution Modules GEH-6855_Vol_II System Guide 419
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