DC-AC INVERTER UNIT
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.
CABLES CONNECTION
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
Power Systems – The Power Solution
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Version 2.0, 15th August 2007
All specifications are subject to change without notice.
POWER-SYSTEMS [ POWER SYSTEMS GMBH+CO.KG ]
