Lincoln Electric POWERTEC i400S

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Overview

Function Description
Important Technical Specifications
Usage Features
Maintenance Features

The POWERTEC® i400S (K14241-1) is an industrial welding machine designed for various welding processes, including GMAW (MIG/MAG), FCAW, and SMAW (MMA). It is a robust power source suitable for demanding industrial environments.

Function Description:

The POWERTEC® i400S serves as a power source for arc welding, converting input electrical power into a controlled output suitable for welding. It supports multiple welding processes, offering versatility for different applications. The machine is designed to be used with a wire feeder, such as the LF 52Ds (K14186-2), for GMAW and FCAW processes. It features a control receptacle for connecting a wire feeder or remote controller, utilizing CAN protocol for communication. Gas connectors are provided for both the machine and the cylinder, facilitating the use of shielding gases. The machine also includes a supply plug for a gas heater kit, enhancing its functionality in specific welding scenarios.

Important Technical Specifications:

Input Voltage: 400V ± 15% 3-phase, 50/60Hz frequency.
Input Power at Rated Cycle: 15 kVA @ 50% Duty Cycle (40°C).
Input Amperes (I1max): 21A.
Power Factor (PF): 0.90.
Efficiency: 85%.
Idle Power: 35W.
Open Circuit Voltage (Uopeak/Uorms): 54Vdc.
Rated Output (Duty Cycle 40°C, based on a 10 min. period):
- GMAW: 350A @ 31.5Vdc (50%), 340A @ 31.0Vdc (60%), 300A @ 29.0Vdc (100%).
- FCAW: 350A @ 31.5Vdc (50%), 340A @ 31.0Vdc (60%), 300A @ 29.0Vdc (100%).
- SMAW: 350A @ 34.0Vdc (30%), 320A @ 32.8Vdc (60%), 275A @ 31.0Vdc (100%).
Welding Current Range:
- GMAW: 20A-350A.
- FCAW: 20A-350A.
- SMAW: 10A-350A.
Welding Voltage Regulation Range: 15V+ 33.5V for both GMAW and FCAW.
Recommended Input Cable and Fuse Sizes: Time-Delay or Circuit Breaker Type D, 400V, 25A, 4 Conductor, 2.5mm² Power Lead.
Dimensions:
- Weight: 68kg.
- Height: 932 mm.
- Width: 560 mm.
- Length: 925 mm.
Protection Rating: IP23.
Operating Humidity (t=20°C): ≤ 90%.
Operating Temperature: from -10 °C to +40 °C.
Storage Temperature: from -25 °C to +55 °C.
EMC Class: A.

Usage Features:

The POWERTEC® i400S is designed for industrial use and requires installation and operation by qualified personnel. It is compliant with IEC 61000-3-11 and IEC 61000-3-12, allowing connection to public low-voltage systems, provided system impedance complies with restrictions. The machine features a power switch (ON/OFF) for controlling input power. It has negative and positive output sockets for connecting welding leads or the source/wire feeder welding cable. A 5-pin control receptacle facilitates connection to a wire feeder or remote controller using CAN protocol. A gas connector is present for the interconnecting cable. For safety, the machine includes top and bottom chains for properly securing a gas cylinder. The cover bracket allows for the installation of welding and control sockets on the rear panel for connecting the wire feeder. The duty cycle of the machine is the percentage of time in a 10-minute period that the welder can operate the machine at rated welding current. For example, a 60% duty cycle means 6 minutes of welding followed by 4 minutes of break. The machine is protected against overheating and accidental short-circuits; if overheated, the thermal protection circuit will decrease the output current to 0.

Maintenance Features:

Regular maintenance is crucial for the longevity and safe operation of the POWERTEC® i400S.

Routine Maintenance (Everyday):
- Check the condition of insulation and connections of work leads and the power lead. Replace immediately if any damage is found.
- Remove spatters from the welding gun nozzle to prevent interference with shielding gas flow.
- Check the welding gun condition and replace if necessary.
- Check the cooling fan's condition and operation, ensuring its airflow slots are clean.
Periodic Maintenance (Every 200 working hours, or at least once a year):
- Perform all routine maintenance tasks.
- Keep the machine clean by using a dry, low-pressure airflow to remove dust from the external case and internal cabinet.
- Clean and tighten all weld terminals if required.
Safety Precautions for Maintenance:
- Do not touch electrically live parts.
- Before removing the welding machine case, turn off the machine and disconnect the power lead from the mains socket.
- The mains supply network must be disconnected before any maintenance or service.
- After any repair, perform proper tests to ensure safety.
Authorized Service: For any repair operations, modifications, or maintenances, it is recommended to contact the nearest Technical Service Center or Lincoln Electric. Unauthorized service will void the manufacturer's warranty. Any noticeable damage should be reported and repaired immediately.