ESAB Fabricator 181i, Service Manual

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ESAB FABRICATOR 181i
Manual 0-5449 3-5 SAFETY AND INSTALLATION
NOTE!
Arc outages may occur while welding on 208 VAC or using Extension cords in Stick mode.
Input Power
Each unit incorporates an INRUSH circuit. When the MAIN CIRCUIT SWITCH is turned on, the inrush circuit provides pre-charging for the
input capacitors. A relay in the Power Control Assembly (PCA) will turn on after the input capacitors have charged to operating voltage
(after approximately 5 seconds)
NOTE!
Damage to the PCA could occur if 265V AC or higher is applied to the Primary Power Cord.
Model
Primary Supply
Cord Size
(Factory Fitted)
Minimum Primary
Current Circuit Size
(Vin/Amps)
Current & Duty Cycle
MIG (GMAW/
FCAW)
STICK (SMAW)
LIFT TIG
(GTAW)
Fabricator
181i
12 AWG (3.3mm²)
208-230V/40A 180A @ 20% 175A @ 20%
208-230V/25A 175A @ 25%
Table 3-3: Primary Circuit Sizes to Achieve Maximum Current
3.07 Electromagnetic Compatibility
!
WARNING
Extra precautions for Electromagnetic Compatibility may be required when this Welding Power
Source is used in a domestic situation.
A. Installation and Use - Users Responsibility
The user is responsible for installing and using the welding equipment according to the manufacturer’s instructions. If electromag-
netic disturbances are detected then it shall be the responsibility of the user of the welding equipment to resolve the situation with
the technical assistance of the manufacturer. In some cases this remedial action may be as simple as earthing the welding circuit, see
NOTE below. In other cases it could involve constructing an electromagnetic screen enclosing the Welding Power Source and the work,
complete with associated input filters. In all cases, electromagnetic disturbances shall be reduced to the point where they are no longer
Trouble-some.
NOTE!
The welding circuit may or may not be earthed for safety reasons. Changing the earthing arrangements
should only be authorised by a person who is competent to assess whether the changes will increase the
risk of injury, e.g. by allowing parallel welding current return paths which may damage the earth circuits of
other equipment. Further guidance is given in EN 60974-13 Arc Welding Equipment - Installation and use
(under preparation).
B. Assessment of Area
Before installing welding equipment, the user shall make an assessment of potential electromagnetic problems in the surrounding area.
The following shall be taken into account.
1. Other supply cables, control cables, signaling and telephone cables; above, below and adjacent to the welding equipment.
2. Radio and television transmitters and receivers.
3. Computer and other control equipment.
4. Safety critical equipment, e.g. guarding of industrial equipment.
5. The health of people around, e.g. the use of pace-makers and hearing aids.
6. Equipment used for calibration and measurement.
7. The time of day that welding or other activities are to be carried out.
8. The immunity of other equipment in the environment: the user shall ensure that other equipment being used in the environ-
ment is compatible: this may require additional protection measures.