0706
2.1 Brief Introduction
SummarySummary
Newyork2500 welding machines adopts the latest pulse width modulation (PWM)
technology and insulated gate bipolar transistor (IGBT) power module, which can change
work frequency to medium frequency so as to replace the traditional hulking ork frequency
transformer with the cabinet medium frequency transformer. Thus, its characterized with
portable, small size, light weight, low consumption and etc.
Newyork2500 machines Characteristics::
◆MCU control system, responds immediately to any changes.
◆High frequency and high voltage for arc igniting to ensure the success ratio of
igniting arc, the reverse polarity ignition ensures good ignition behavior in TIG-AC
welding.
◆Avoid AC arc-break with special means, even if arc-break occurs the HF will keep
the arc stable.
◆Pedal control the welding current.
◆D o u b l e p u r p o s es: A C i n v e r ter T I G a n d D C i n v e r t er T I G / M M A, E x c e l lent
performance on AL-alloy, carbon steel, stainless steel, titanium.
The parameters of on the front panel all can be adjusted continuously and steplessly,
such as start current, crater arc current, welding current, base current, duty ratio, upslope
igniting to ensure the success ratio of igniting arc.
◆In DC TIG without HFopertation, If the tungsten electrode touches the workpiece
when welding, the current will drop to short-circuit current to protect tungsten.
◆
occoured, the alarm lamp on the front panel will be on and the output current will
be cut off. It can self-protect and prolong the using life.
Intelligent protection: over-current, over-h eat, when the mentioned problems
time, downslope time, pre-gas, post-gas, pulse frequency, AC frequency, balance, hot start,
arc force and length etc. When welding, it takes high frequency and high voltage for arc
2.2 Working Principle
The working principle of Newyork2500 welding machines is shown as the following figure.
Single-phase 230V work frequency AC is rectified into DC (about 312 V), then is converted
to medium frequency AC (about 20-40KHz) by inverter device (IGBT module), after reducing
voltage by medium transformer (the main transformer) and rectifying by medium frequency
rectifier (fast recovery diodes), then is outputted DC or AC by selecting IGBT module. The
circuit adopts current feedback control technology to insure current output stably. Meanwhile,
the welding current parameter can be adjusted continuously and steplessly to meet with the
requirements of welding craft.
230V,50Hz
2.3 Volt- Ampere Characteristic
N e w y o r k 2 5 0 0 w e l d i n g m a c h i n e
h a s a n e x c e l l e n t v o l t - a m p e r e
c h a r a c t e r i s t i c , w h o s e g r a p h i s
s h o w n a s t h e f o l l o w i n g f i g u r e .
T h e r e l a t i o n b e t w e e n t h e c o n -
v e n t i o n a l r a t e d l o a d i n g v o l t a g e
U a n d t h e c o n v e n t i o n a l w e l d i n g
2
c u r r e n t I i s a s f o l l o w s :
2
When I ≤600A, U =10+0.04I (V);
2 2 2
When I ≤600A, U =20+0.04I (V);
2 2 2
When I ≤600A, U =80+0.4I (V);
2 2 2
When I >600A,U =34(V).
2 2
When I >600A,U =44(V).
2 2
TIG
MMA
CUT
2.4 Specifications
170A @ 25%, 26.8V / 85A @ 100%, 23.4V
200A @ 40%, 18V / 126A @ 100%, 15V
50A @ 40%, 100V / 25A @ 100%, 90V
11.5 kg
10 - 170A
10 - 200A
20 - 50A
15.4A
30.9A
10KVA
H360mmxW160mmxD380mm
Description
Weight
Power Source Dimensions
Cooling
Welder Type
European Standards
Number of Phases
Nominal Supply Voltage
Nominal Supply Frequency
Welding Current Range (MMA Mode)
Welding Current Range (TIG Mode)
Welding Current Range (CUT Mode)
Single Phase Generator Requirement
MMA Welding Output, 40ºC, 10 min.
TIG Welding Output, 40ºC, 10 min.
CUT Welding Output, 40ºC, 10 min.
Open circuit voltage (MMA/TIG)
Open circuit voltage（CUT)
Protection Class
Maximum Input Current
Effective Input Current
SIWM DIGITAL Newyork2500
Fan Cooled
EN 60974-1 / IEC 60974-1
1
230V +/- 15%
50/60Hz
60V DC
250V DC
IP23
Inverter Power Source
AC/DC PLASMA SERIES EQUIPMENTAC/DC PLASMA SERIES EQUIPMENT
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