Dragonfly/ Butterfly Installation Guide

Installation

MAN-DRBUIG (Ver. 1.1)

 

 

 

3.5.2Grounds and Returns

3-5

The “Returns” of the Dragonfly and Butterfly are structured internally in a star configuration. The returns in each functional block are listed below:

Functional Block

Return Pin

Power

PR (Power Return)

 

 

Internal Switch Mode P.S.

PR (Power Return)

Control section

Internal, not accessible

 

 

Feedback

SUPRET (J2/2)

The returns above are all shorted within the Dragonfly and Butterfly in a topology that results in optimum performance.

1.When wiring the traces of the above functions, on the Integration Board, the Returns of each function must be wired separately to its designated terminal on the Dragonfly and Butterfly. DO NOT USE A COMMON GROUND PLANE. Shorting the commons on the Integration Board may cause performance degradation (ground loops, etc).

2.Return Traces: The return traces should be as large as possible, but without shorting each other, and with minimal cross-overs.

3.Main Power Supply and Motor Traces: The power traces must be kept as far away as possible from the feedback and control traces.

4.PE Terminal: The PE terminal is connected directly to the Butterfly's heatsink or to the Dragonfly's two PE strips on its lower board. In the Butterfly, the heatsink serves as an EMI common plane. The PE terminal should be connected to the system's Protective Earth. Any other metallic parts (such as the chassis) of the assembly should be connected to the Protective Earth as well.

5.Under normal operating conditions, the PE trace carries no current. The only time these traces carry current is under abnormal conditions (such as when the device has become a potential shock or fire hazard while conducting external EMI interferences directly to ground). When connected properly the PE trace prevents these hazards from affecting the drive.

Follow these instructions to ensure safe and proper implementation. Failure to meet any of the above-mentioned requirements can result in drive/controller/host failure.

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Elmo DRA- X/YY, BUT- X/YYY, ExtrIQ Dragonfly/Butterfly manual Grounds and Returns, Functional Block Return Pin, Supret J2/2
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ExtrIQ Dragonfly/Butterfly, BUT- X/YYY, DRA- X/YY specifications

Elmo DRA-X/YY, BUT-X/YYY, and ExtrIQ Dragonfly/Butterfly are innovative industrial communication and control solutions designed to enhance automation processes. These systems are characterized by their cutting-edge features, advanced technologies, and robust characteristics that cater to diverse industrial applications.

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