Panasonic YD-500KR, Руководство по эксплуатации

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29
EXTENDED FUNCTIONS
Adjusting the Controls on the Printed Circuit Board
The following control functions are incorporated In this machine in order to improve weld
ability. They will work regardless of the settlings/operations of various switches on the
welding power unit operation panel.
The incorporated control functions can he adjusted with the controls on the printed
circuit board.
[Controls on Printed Circuit Board]
Incorporated
Control
Function
Description Control
Continuous Control
range (Fully Left
to Fully Right)
Setting upon
Shipment
Burn-Back Time
(BBK) （Refer to
page 49）
Adjusts a time until arc
burns up and goes off after
turning off the switch to
end welding unified
VR5
Burn-up
Decrease-Increase Center
position
Simple voltage
Adjustment
（ Refer to page
49）
Adjusts a standard voltage
value when SIMFLE UNIFIED
is selected
VR8
Standard voltage
value decrease- +
Increase
Adjustment
position
Preflow time Adjusts the Preflow time VR11
Preflow time
Decrease-Increase
(0.05 s-0.6 s)
Adjustment
position
Afterflow time Adjusts the Afterflow time VR12
Afterflow time
Decrease-Increase
(0.35 s-0.9 s)
Adjustment
position
Exterior ammeter
Adjustment Adjusts the Exterior
ammeter
VR15
Decrease-Increase Center
position
Already adjusted. Do not touch.
VR3 VR4
VR6 VR7
VR9
--
Adjustment
position
Switching the DC Reactor Tap
The DC reactor(DCL) of this machine(500KR2) has an intermediate tap.
Machine Type Intermediate Tap Tap upon shipment
YD-500KR2 27 turns 32 turns
The DC reactor improves the dynamic characteristic (short-circuit transient characteristic)
of the welding power unit, reduces spattering, and shape up the head.
When the number of turns is large, therefore, arc becomes mellow and spattering reduces.
When the number of turns is small, follow-up performance of arc will be improved with respect
to hand vibrations or quick feed of the torch.
Switch to the intermediate tap to reduce the number of turns as required.