Nelson Nelweld 4000, Operation And Service Manual

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Nelweld Operations and Service Manual
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Nelweld Maximum Settings
Current (amps) Time (seconds)
Power source
Min Max Min Max
Nelweld 4000 300 2100 0.020 1.400
Nelweld 6000 300 2500 0.020 1.500
4.6.2 Setting the Current
The current setting is displayed on the front panel
upper display. It can be changed using the + and
– keys to the right of the current display in one
(1) amp increments. As each of these keys
remains pressed, the current setting will increase
or decrease at a faster rate.
4.6.3 Current Display
The current setting is the current setting during a
weld, and can be viewed in the front panel’s
upper display. It can be changed using the + and
– keys to the right of the current display in one
(1) amp increments. In normal operating modes,
the desired setting and the actual current will be
the same. In this situation the display does not
change during or after a weld. However, in
conditions where it is not possible for the power
source to deliver the desired current, a warning
light will light on the front panel display. This
typically occurs when using high currents with
small or excessively long weld cables.
4.6.4 Setting the Time
The time setting is displayed on the front panel
lower display. It can be changed using the + and
– keys to the right of the time display in one (1)
millisecond (0.001 second) increments. As each
of these keys remains pressed, the time setting
will increase or decrease at a faster rate. This
time is represented by t
4
on the “Timing
Diagrams” in the Section 7.1 of this guide.
4.6.2 4.6.3
4.6.5
4.6.4
4.6.6
4.6.7
4.6.10
4.6.11
4.6.9