Technical Data Sheet

Technical Data Sheet
Resistance Welding
Inverter-Controlled
Welding Power Supply
IS-444C/IS-471C
IS-444C/471C Features & Benefits
 High-speed inverter-controlled welding power supply with high
capacity IGBT
 Fifteen weld schedules for various applications
 Five control types: Constant power, secondary constant
current RMS, primary constant current PEAK, primary
constant current RMS, and constant phase.Primary
constant current RMS/ Primary constant voltage RMS
 Three monitoring parameters: Power, current, and voltage
 Selectable time scales in ms or cycle
 Selectable control frequency: 600Hz, 800Hz, or 1kHz
 Weld to displacement function
When a weld displacement reaches a certain level the
weld current can be interrupted. This generates a stable
result. For this feature, the IS-444C/471C needs to be
connected with a weld checker such as MM-370B or MG3.
MA-627
IS-444C
IS-444C/471C and Transformers Technical Specifications
Model
Power requirements
Output frequency
Maximum output current
Control systems
Number of weld
schedules
Time settings
Squeeze Delay
Squeeze
Weld 1, 2 *
Up Slope
Down Slope
Cool
Hold
Off
Miyachi Europe Corporation
IS-444C
IS-471C
Three phase, 480/440/400/380/220VAC +10% -15%,
50/60Hz
1kHz/800Hz/600Hz (Selectable)
500A (15% duty cycle)
1000A (12% duty cycle)
Primary constant current (PEAK, RMS),
Secondary constant current, Constant power, Constant
phase
15 (Option: 127)
“ms” mode
0000 – 9999ms
0000 – 9999ms
000 – 600ms
000 – 400ms
“cycle” mode
000 – 999cyc
000 – 999cyc
00 – 30cyc
00 – 20cyc
000 – 999ms
00 – 99cyc
0010 – 9990ms (10ms
1/3
00 – 99cyc
Technical Data Sheet IS-444C/471C
Impulses
Settings Constant current
Constant power
Fixed pulse
Weld monitors Current**
Voltage**
Power**
Pulse width**
Communication
Weight
Cooling method
Transformer
Model
Rated capacity
Rated primary voltage
Secondary voltage, no
load
Turn ratios of
transformer
Input frequency
Maximum weld current
Duty cycle
Cooling method
Weight
Dimensions (mm)
each)
1-9
2.0 – 40.0kA
4.0 – 80.0kA
2.0 – 40.0kW
4.0 – 80.0kW
10.0 – 99.9%
00.0 – 40.0kA
00.0 – 80.0kA
0.00 – 9.99V
0.00 – 9.99V
00.0 – 40.0kW
00.0 – 80.0kW
10 – 100%
RS485 optional
45 kg
Water cooling Flow: 6L/min., Water temp.: 35℃ or
below
IT-113X
130kVA
530V
9.5V
440VAC
IT-146X
IT-170R*
230kVA
170kVA
52
13.9V
12.5V
38
40
TDC-5339**
250kVA
500 V
10V
50
1kHz
45kA
50kA
Water Cooling
39,5kg
230x160x127 mm
467x152x176mm 419x260x197mm
*Transformer is for IS-444C only.
**Transformer is for IS-471C only.
Duty cycle and output current characteristic IS-444C/471C
Miyachi Europe Corporation
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Technical Data Sheet IS-444C/471C
IS-444C/471C Applications
Electronic components
Fixation
Automotive
IS-444C/471C Dimensions and Weight
IS-444C = 45kg
IS-471C = 45kg
Local Representative
All data, images and text described and illustrated in this technical data sheet are subject to change. Miyachi Europe reserves the right to modify the
specifications, the design and the illustrations at any time. All rights reserved –December 2010.
Miyachi Europe Corporation
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Technical Data Sheet IS-444C/471C
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