YASKAWA MOTOWELD-T300D - Internal Adjusting Knob Functions; Internal Selector Switch Functions

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10.2 Internal Adjusting Knob Functions
Adjustment of Pre-flow Time (VR14)
Pre-flow time can be adjuted in the range of approx.0.1 to 0.5 second. The factory setting
is 0.2 second. If it should be longer, use the knob VR14 on printed board Pr (MB2) to set
the proper time.
10.3 Internal Selector switch Functions
The following lists the selector switches on printed board Pr (MB2).
SW No. Factory
Setting
Details
JS1
EP1
Can change the current values of EP and EN at AC welding.
JS2
N
(Shortcircuit)
Manufacturer’s settings. Cannot be selected.
JS5
3φ
Manufacturer’s settings. Cannot be selected.
JS6
EN
(Shortcircuit)
Manufacturer’s settings. Cannot be selected.
JS8
M
Can change the strength of arc start.
JS9
IP
(Shortcircuit)
Can select whether welding is to be started from base current or pulse current at
pulse welding.
J10
(Shortcircuit)
Manufacturer’s settings. Cannot be selected.
Display Function
EP1
I
EP = IEN (factory setting)
EP2
I
E P= IEN/1.5
Display Function
H
To strengthen arc start more
M
Factory setting
L
To prevent a small base metal from melting down or a thin
plate from getting a hole.
Display Function
IP
Staring from pulse current. (factory setting)
IB
Starting from base current.