Moxa MD-224X [17/56] Grounding the md 224 series

MD-224 Hardware Manual Hardware Connection Description

3-6

ATTENTION

Safety First!

Be sure to disconnect the power cord before installing and/or wiring your

MD-224 Series.

Wiring Caution!

Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes

dictating the maximum current allowable for eac

h wire size.

If the current goes above the maximum ratings,

the wiring could overheat, causing serious damage to your equipment.

Temperature Caution!

Be careful when handling the unit. When the unit is plugged in, the internal components generate heat, and

consequently the outer casing may feel hot to the touch.

We recommend taking the following precautions to minimize heat

build-up within the display:

•

Position the display within ±40° of the vertical.

•

Install an external fan to increase airflow upwards through the

display if (a) the display is not positioned

within ±40° of the vertical, (b) the ambient temperature exceeds 25°C, or (c) the display is used in a

location with minimal ventilation.

Important Safety Precaution

Even though the display is rated to operate within the IEC 60945standard of

-15 to 55°C for marine

applications, it is best to ensure

that the ambient temperature does not exceed 25°C. Doing so will

increase the

life of your display and minimize service co

sts.

Grounding the MD-224 Series

Be sure to ground the MD-224 Series before powering it on. Grounding and wire routing help limit the effects

of noise due to electromagnetic interference (EMI). Run the ground connection from the ground screw to the

grounding surface prior to connecting the power.

ATTENTION

This product is intended t

o be mounted to a well-grounded mounting surface, such as a metal panel.

Earth Ground: See the figure shown below for the location of the earth grounding connector. Connect the

grounding wire to an appropriate grounded metal surface.