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5-1. VRD (Voltage Reduction Device)
The equipment includes a voltage reduction device
on the weld output side. The voltage reduction
device reduces the output voltage of the welder
when welding is paused in order to further
increase safety when welding in locations with
high humidity, elevated locations, extremely
confined spaces near possible hazards, and
similar conditions.
When the VRD switch is set to
"ON" and not welding,
the voltage reduction device
reduces the voltage of the Weld output terminals to 35 V or less.
When welding is started, the voltage-reduction function is cancelled and the
equipment returns to the reduced voltage status when welding is completed.
Turning the VRD switch to "OFF" also cancels the voltage-reduction function.
The green VRD lamp ("BELOW 35V" side) lights up when weld output voltage is
less than 35 V and the red lamp ("AT OR ABOVE 35V" side) lights up when the
voltage is 35 V or more.
<Note>
•
The VRD is only for weld output. It does not function for AC generated output
voltage.
5-2. Idle Control
The equipment includes an idle control
function. You can use the idle control switch
to select an engine speed setting of
"AUTO","HIGH".
(1) Auto Idle
The equipment includes an auto idle function in order to reduce noise, save fuel,
and reduce exhaust gas emission.
You can set the idle control switch to "AUTO" so that the engine operates at low
speed when not welding or using the equipment as a power source.
When you start to weld or use as an AC power source, the engine automatically
increases to high speed. When in a no-load condition, the engine automatically
returns to low speed after approximately eight seconds of high-speed operation.
<Note>
•
Set the idle control switch to "HIGH" if using a high capacity motor, precision
instruments or AC load with an attached magnetic switch.
•
Set the idle control switch to "HIGH" if using as an AC power source of a device
of 0.5 A or less because the engine might not reach a high speed as speed
control does not operate at that level.
(2) High Idle
You can set the idle control switch to "HIGH" to maintain the engine constantly at
high speed.
5. Equipment
VRD Lamp VRD Switch
Idle
Control
Switch
Summary of Contents for DGW500DM
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