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Thank you for choosing the LGK-ID IGBT Digital Air Plasma Cutter of Delixi (Hangzhou) Inverter Co., Ltd.
Before use LGK-ID IGBT Digital Air Plasma Cutter, please carefully read this Manual to ensure correct use.
Incorrect use may lead to abnormal operation, failure and reduction of service life of LGK-ID IGBT Digital Air
Plasma Cutter and even personal injury accidents. Therefore, you must carefully read this Manual and strictly
follow it. This Manual is a standard Annex, which is must be properly kept after reading for overhauling and
maintaining the Inverter Air Plasma Cutter in future.
Except Operating Instructions stated herein, this Manual also provides the circuit diagram for your information. If
you have any questions or special requirements on this products, please contact our local offices or distributors,
you also can phone the Customer Service Center of our headquarters directly, we are at your service.
The contents of this Manual are subject to change without prior notice
Before unpacking, please carefully read the following contents:
1.
Whether the products are damaged, the spare parts are broken and fall off or main body is scratched during
the transportation.
2.
Whether the rated value stated on the nameplate of this machine is consistent with your ordering
requirements, as well as the machine ordered, Product Certificate, User's Manual and Warranty are within
the carton.
Our company has strict Quality Assurance System on the manufacturing and packaging of the products, in case of
any inspection omitted, please immediately contact our Company or your supplier to deal with it.
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Table of Contents
Summary of Contents for Delixi LGK-ID IGBT
- Page 1 Before use LGK-ID IGBT Digital Air Plasma Cutter, please carefully read this Manual to ensure correct use. Incorrect use may lead to abnormal operation, failure and reduction of service life of LGK-ID IGBT Digital Air Plasma Cutter and even personal injury accidents. Therefore, you must carefully read this Manual and strictly follow it.
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Page 2: Table Of Contents
Table of Contents Foreword I. Product Introduction ............................- 1 - II. Notice For Safety ............................- 2 - III. Main Technical Parameters ........................- 3 - IV. Installation And Operation ........................- 4 - V. Welding Operation Instruction ........................- 7 - 5.1 Functon Introduction ............................- 7 - 5.2 Operating Instruction For Plasma Cutter ......................- 8 - VI. -
Page 3: Product Introduction
I. Product introduction Product introduction The DSP digital control inverter technology is adopted in the production of the LGK-40ID Series Inverter Air Plasma Cutter of our company. The large power device of single-tube IGBT is adopted in the inverter power supply. The 50/60Hz working frequency is converted into 32kHz high frequency before voltage reduction and rectification, and then a large power DC power supply is output by adopting the pulse width modulating (PWM) technology, while the weight and volume of the main transformer are dramatically reduced and is generally over 30% more efficient than other... -
Page 4: Notice For Safety
Notice for Safety II. Notice for Safety IMPORTANT: Do not cut off power in order to prevent damage of machine during cutting. The control switch of the cutting torch must be turned off before cutting while ensuring that the cutting torch is cut off from the base material to prevent arc burns. It is necessary to install safety protection switch for electric leakage. -
Page 5: Main Technical Parameters
III. Main Technical Parameters III. Main Technical Parameters Model LGK-40ID LGK-60ID Single-phase AC 220 V ± 10% Three-phase AC 380V ± 10% Input Voltage 50/60Hz 50/60Hz Rated Input Power (kVA) Rated Input Current (A) No-load Voltage (V) Output current range (A) 20-40 20-60 Rated output voltage (V) -
Page 6: Installation And Operation
IV. Installation and Operation IV. Installation and Operation Connection diagram for cutter (Figure 1) First use heavy cable to prevent voltage dropping while using main input cable. The resistance of main cable may obstruct voltage dropping of input cable and affect arc striking and other systems. 4.1 Connection for input cable Each machine is equipped with a power cable. - Page 7 IV. Installation and Operation 4.2 Connection for output cable (Figure 1) 2a Connection for cutting torch Connect copper nut of cutting torch with conductive cable. And connect plug on cable clamp to terminals on front panel by screwing in clockwise (prevent air leakage). 2b Connection for switch on cutting torch Connect plug of switch on cutting torch to switch and screwing the electrode in sequence, and then assemble nozzle.
- Page 8 IV. Installation and Operation Figure 3 Apply sealant on the copper gas nozzle and set to position of IN and OUT. Apply sealant on heading and then set it to the top. Fix the joint frame in position by nut. Unscrew nut and fix gas valve on joint frame.
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Page 9: Welding Operation Instruction
V. Welding Operation Instruction V. Welding Operation Instruction 5.1 Function Introduction 5.1.1 Front Panel and Back Panel of the Cutter Figure 4 LGK-40ID Front Panel & Back Panel 5.1.2 Control Panel of the Cutter The control panel of the cutter illustrated in figure 3 is used for function option and parameter setting of the cutter. It includes the digital display window, the adjustment button, and the LED indicator lamp. - Page 10 V. Welding Operation Instruction Figure 3 Control Panel 5.2 Function Options and Parameter Setting & Display Current /delayed gas extending switching display current adjustment/delayed gas extending time switching & setting State switching between the two-step action (non-auto locked) and the four-step action (Auto locked) of the cutter, and the gas trial.
- Page 11 V. Welding Operation Instruction The Four-step Mode means the cutter outputs cutting current when the cutting gun switch is pressed for the first time, and it keeps the cutting current when the switch is released. After the cutting is over, the cutter stops current output when the cutting gun switch is pressed and released once more.
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Page 12: Operating Instruction For Plasma Cutter
VI. Preparation and Operation of Cutting VI. Preparation and Operation of Cutting 6.1 Preparation for plasma cutter. Ensure cutter to be with reliable grounding. Ensure connector to be with good connection. Ensure voltage to be appropriate. Ensure input cable and gas bottle to be without corrosion and damage. 6.2 Operating instruction for plasma cutter On the front panel, turn the power switch to position of “ON”. -
Page 13: Routine Maintenance And Precautions
VII. Routine maintenance and precautions VII. Routine maintenance and precautions Warning All maintenance must be performed while power is off. Open cover after remove power plug. 7.1 Maintenance Purge inside by dry and clean compressed air regularly. Remove dust every month if cutter is operated in the environment of heavy smoke and serious air pollution. - Page 14 VII. Routine maintenance and precautions Ambient temperature range between -10℃ to 40℃ Do not operate cutter in sunshine or in the rain to prevent the ingress of water or rainwater. Do not operate cutter in the environment with dust or corrosive gas. Do not perform gas protective welding in the environment with strong air flow.
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Page 15: Troubleshooting
VIII. Troubleshooting VIII. Troubleshooting Schedule Fault Troubleshooting Indicator lamp for power is Power switch is damaged off, fan is not operating and Ensure network connected with input cable is live or not. without cutting output Ensure input cable is open or not. Indicator lamp for power is Connect with 380 V power by mistake to cause it activate over voltage on, fan is not operating or... - Page 16 VIII. Troubleshooting striking power plug (close to fan VH-03 inserter) and restart. Indicator lamp for fault is on due to some field effect transistors on MOS plate are damaged. Check and replace the same type field effect transistor. Indicator lamp for fault is off due to step up transformer of high frequency arc striking circuit is damaged and need to be replaced.