Tweco 400 MSTP Arcmaster - Manual (Page 35)

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Feature Description
Voltage Reduction Device (VRD)
(Shipped de-activated, field capable)
See Section 11 for activation instructions.
Reduces the OCV when the power supply is not in use.
Eliminates the need for add on voltage reducers and has
no effect on arc starting.
• VRD fully complies to IEC 60974-1
• When Stick mode is selected the green VRD light is
ON when not welding and red when welding.
• When in TIG modes VRD is OFF.
Control Knob • For the selected weld parameter, rotating the knob
clockwise increases the parameter.
• Rotating the knob counter-clockwise decreases the
parameter.
• A selected weld parameter value can be adjusted at any
time even while welding.
• Pushing the knob in sets the selected parameter then
displays the next parameter.
Self Diagnosis Using Error Codes • An error code is displayed on the Digital Meter when a
problem occurs with Mains supply voltage or internal
component problems.
Save/Load Function • A total number of 5 programs can be saved into the
200AC/DC memory.
SAVE the Current Weld Parameters into Memory
• Press and HOLD the SAVE button. Beep will sound
and Digital Meter display will show a number 1.
• Select a memory location by rotating the control knob,
1 to 5 is displayed on the meter.
After selecting the desired memory location (i.e. 1 to 5),
press the right scroll button and the machine will give a
beep to confirm the weld parameters are loaded onto the
control panel.
LOAD (retrieve) a Program to Control Panel
• Press and HOLD the LOAD button. Beep will sound and
Digital Meter display will show a number 1.
• Select a memory location by rotating the control knob,
1 to 5 is displayed on the meter.
After selecting the desired memory location (i.e. 1 to 5),
press the right scroll button and the machine will give a
beep to confirm the weld parameters are loaded onto the
control panel.