DC-AC INVERTER UNIT

Power Systems – The Power Solution

Web:

www.Power-Systems.de

Address: Hauptstr. 48 ; 74360 Ilsfeld-Auenstein / Germany

Email:

Info@Power-Systems.de

Tel. :

+ 49 / 70 62 / 67 59 - 6

Fax:

+ 49 / 70 62 / 67 59 - 800

All specifications are subject to change without notice.

Page (2)

Version 2.0, 15th August 2007

Thank you very much for usually patronizing Power Systems and TDK’s DC/AC inverter. Following the expansion of it’s use, there

are unexpected troubles that are caused by mis-use or mis-handling because the DC/AC inverter generates a high voltage of

900Vrms or more. Hereafter, the cases of the major troubles are described. Please also refer to “Notes of used” of the attached

paper.

Ex.1 Multilayered PWB

Inverter was mounted the nearest to the main board because there is no surface pattern. However, dielectric breakdown

happened because there was a low-voltage pattern in internal layer, and they were damaged by arc fire.

Ex.2 Foreign body

Short of high voltage area by insect (cockroach etc.) having invaded installed set in food processing plant and counter, etc. Short

by adhesion of metal powder when using it by set such as NC machine tool.

Ex.3 Mechanical stress

Parts will be cracked or the wire of transformer will be broke, etc. When the mechanical stress was given at the installation on the

set.

Ex.4 Storage, handling

When you store it, if the product is piled up or grabed with other inverters together at once, etc. these will be the cause of the

break of transformer’s wire and etc.

1.) Don‘t extand cables.

1.1.) Don‘t cut through nor solder them, unless you have consulted the manufacture.

2.) Don‘t exchange cables.

2.1.) Polarity is very important otherwise -will be able to a short circuit.

-there might be a short circuit.(Please refer to fig.1)

Fig. 1

OK

NG

CABLES CONNECTION