Gold Bell Installation Guide
MAN-G-BELIG (Ver. 1.200)
|Connector J2 |
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Table of Contents
Chapter 7:
Integrating the Gold Bell on a PCB
The Gold Bell is designed to be mounted on a PCB by soldering its pins directly to the PCB. Refer to
Chapter 5 in the MAN-G-Board Level Modules Hardware Manual and the drawings in the Gold Line
Whistle Design Guide MAN-G-WHIIDG for further information.
7.1
Power Returns (PR)
In the Gold Bell, the power stage and control stage are internally connected, and the negative node
of the DC power bus is designates as PR
The maximum realistic Power Return is achieved using a plane, which connects between the Gold
Drive and the power source. The impedance on this plane must be as low as possible to reduce the
impedance between the “Grounds”. This effectively reduces the levels of common mode
differences, interferences, EMI etc.
7.2
COMRET
For details of the COMRET, refer to the section 5.4 in the MAN-G-Board Level Modules Hardware
Manual.
7.3
Earth Connection (PE)
The PE (Earth connection) terminal is connected internally in the drive to the Gold Bell’s chassis
(heat-sink + metal cover) which serves as an EMI common plane. Any other assembly metallic parts
(such as the chassis) should also be connected to the PE.
Under normal operating conditions, the PE trace carries no current. The only time these traces carry
current is under unusual 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.
