4
There are possible two operation modes:
a) with an automatic open circuit voltage reduction to the safe value of
approx. 12V. This mode is automatically set when the power is turned on
and after changing from another mode to MMA mode - it is signalled by
continuous illumination of the LED indicating welding current Is.
b) without automatic open circuit voltage reduction. Open circuit voltage is
sustained at a level of 95V. This operation mode can be selected by
pressing the parameters switch button (3). It is indicated by blinking of the
LED indicating welding current Is. Press the button (3) again to return to
the operation with automatic open circuit voltage reduction.
When the welding machine is equipped with a remote control module, it is
possible to remotely change the welding current during performing the weld.
2)
TIG 2T welding with direct current (DC-) (2 Step trigger) -
the red light
should indicate
The following parameters can be set within given ranges:
•
Is[A] - welding current in amperes adjustable in the range of 5-150A with a
resolution of 1A
•
Tn[s] - welding current rise time in seconds adjustable in the range 0.1-5s
with a resolution of 0.1s
•
To[s] - welding current fall time in seconds adjustable in the range 0.1-20s
with a resolution of 0.1s
•
Ib[%] - base current adjustable as a percentage of the welding current Is
within the range 10-100% with a resolution of 1%. If the value of the basic
current is set to 100%, the welding current will have a constant value
equal to the set value of Is. If the value of the basic current is different
from 100%, we get pulsating current with the following parameters:
welding current will pulsate with the frequency fp and the duty cycle TH[%]
(see below)
•
TH[%] - duration of current pulses of the value Is as a percentage of the
signal pulse period within the range 1-99%.
TH parameter is adjustable
only when the set value of the base current Ib is different from 100%
•
fp[Hz] - the welding current pulse frequency in Hz, adjustable in the range
0.1-50Hz.
fp parameter is adjustable only when the set value of the
base current Ib is different from 100%
Содержание 150AC
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