Guidelines for Electrical Installation
D301087 0308 - BL20 CANopen7-6
Potential-Free Installation
In a potential-free installation, the reference potentials of control and
load circuitry are galvanically isolated from each other.
A potential-free installation is necessary with
All AC load circuits (for example, when using the Power Feeding
module BL20-PF-120/230VAC-D)
Floating DC load circuits
The potential-free installation does not depend on the method of
grounding.
Non-isolated Installation
In a non-isolated installation, the reference potentials of the control
and load circuitry are galvanically connected.
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