Panasonic Inverter controlled GMAW DC Power Source YD-400VP1YHD

As you use the product longer, the fin that promotes heat loss of semiconductor gets clogged causing temperature rise inside the product, resulting in temperature error stop.; Therefore, periodic cleaning of fin is recommended.; (1) Remove the front center panel from the welding power source, and disconnect the cooling fan. And then remove the cooling fan together with mounting plate.

(2) Remove dirt and dust accumulated in the fin.

It is recommended to perform periodic cleaning as dust and wire particles are prone to get into the product from the lower part of the product.

(1) Unscrew bolts from lower left and right panels (6 each) of the welding machine to remove the covers.

(2) Before blowing air, remove any items, such as dust and iron particles that may affect surroundings.

(3) Use dry compressed air to blow dirt and dust accumulated in the product.;

• Daily inspection is very important to make the most of performance of the product and to ensure safety of daily operation.

• Check the items shown in the following table as daily check and clean/replace parts if needed.

• As replacement parts, make sure to use our genuine parts for Panasonic welding machines to keep its performance and functions.;

Mainly check the following points.

• Signs of odor, tarnish and heat generation

• Items that are difficult to check in daily inspection;

Precautions in performing withstand voltage test and insulation resistance measurement

This product uses semiconductor components, such as transistor. Executing withstand voltage test or insulation resistance measurement casually may cause serious physical injury or mechanical failure. If necessary, contact Panasonic representatives.

● Attention to Panasonic representatives (About withstand voltage test and insulation resistance measurement) Prior to conducting withstand voltage test and insulation resistance test, prepare the following items and also connect ground wire (cross section: about 1.25 mm2).

Draw out the input power cable from the power box, and short the connecting terminals of the cable.

Output terminal of welding power source

Disconnect the cables connected to the output terminal except one for welding main circuit, and then short circuit the output terminals with conductor cable.

Disconnect all connecting cables and signal wires for external devices from jig terminal, welding torch, wire feeder connector, communication connector and so on.

(1) Unscrew two eyebolts and two bolts from the top panel to remove the top panel.

• Before removing the top panel, remove dust and iron particles from the top panel if any.

• Remove the top panel only for internal inspection. Do not remove side plates to prevent dirt and dust to get into the power source.

• Compared to the lower part, the upper part of the power source is designed as less likely dirt and dust to get into it. Do not perform inspection work in dust laden atmosphere, such as immediately after blowing off dust.

• After inspection work, make sure to put cover back in place.;