YASKAWA MOTOWELD-T300D, Instructions Manual

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8 Basic Specifications
8.1 Specifications of Both DC/AC TIG Welder
CAUTION
• The welder is incorporated with a high DC voltage generator. Take sufficient consideration so
that the whole system will not malfunction because of this high DC voltage generator. If there is
any possibility of malfunctioning, take proper countermeasures.
Failure to observe this caution may result in electric shock.
The following table shows the welder specifications.
Table 8.1 Welder Specifications
Model YWE-T30D(0)
Name MOTOWELD-T300D
Rated Output Current 300 A
Rated Input Voltage
*1
Three-phase 200/220 V ±10%
Rated Input Frequency 50/60 Hz
Rated Load Voltage 20 VDC
Maximum No-load Voltage 62 V
Rated Input 11.5 kVA (8.5 kw)
Rated Operational Ratio 40% (for 10 minutes)
Low-pulse Frequency 0.5 to 15 Hz
Middle-pulse Frequency 15 to 500 Hz
Crater Control None
Start Method High DC voltage
Pre-flow Time 0.2 second (internal adjustment: 0.1 to 10 seconds)
After-flow Time 3 to 25 seconds
Pulse Width 15 to 85%
Interface for Manipulator Refer to “9 Interface Signals.”
External Dimensions (mm)
*2
360 × 605 × 605 (width × depth × height)
Mass Approx. 60 kg
*1. Use the selector switch at the rear face to change input voltage.
Rated input voltage is set to 200 V at factory setting, and 220 V is also available. When
the welder is used at 220 V, set the selector switch at the rear face to 220 V.
*2. Eyebolts are excluded.
Note: 1. Input power supply voltage must be within ±10% of rated input voltage.
Humidity must be up to 50% and 90% at temperature 40
℃
and 20
℃
, respectively.
2. For EN (positive polarity) start by the high DC voltage start method and assurance of
the start performance, DC current flows for approx. 220 ms, being fixed to approx. 70
A and 30 A at AC welding and DC welding, respectively.