background image

9

Figure 3-1: Front panel of L20701

Figure 3-2: Back panel of L20701

3. OPERATION

3.1 Panel functions of L20701

1

2

3

No.

Part name

Function

4

Air reducer
valve

To adjust the pressure of the input
air.

Cooling fan

For heat dissipation through forced
air cooling.

Cable

For power supply input.

Power switch

To control the ON

/

OFF of the input

power of the machine.

1

2

3

4

No.

Part name

Function

Overcurrent in
-dicator

To indicate the machine is under ov
-ercurrent protection status when it
 illuminates.

5

6

7

The power ight To indicate the machine work properly.

Plastic shutter

As the exit for air duct, for ventilation and 
heat dissipation.
To connect the control signal of cuttin
-g torch.

Interface for torch
trigger

Gas-electric 
connector

To connect the cutting torch

Current control 
knob

To adjust the output current value.

“+” 

output 

terminal

To connect the earth clamp.

4

3

5

6

7

2

1

4

3

2

1

Содержание CUT30

Страница 1: ...T MODEL CUT40 L20701 CU 0 L208 OPERATOR S MANUAL 3 INVERTER CUTTER ...

Страница 2: ......

Страница 3: ...ording to relevant national Thank you for JASIC inverter cutter In order to ensure your safety and correct operation please read this manual carefully before operation Keep this manual properly for future references SHENZHEN JASIC TECHNOLOGY CO LTD Address No 3 Qinglan 1st Road Pingshan District Shenzhen Guangdong China Postcode 518118 Tel 0755 29651666 Fax 0755 27364108 Website http www jasictech...

Страница 4: ...ials to avoid a fire Make ensure there are no inflammables near the cutting position to avoid a fire Beware of explosion Do not install the machine in an environment with explosive gas to avoid an explosion Replacing the components can be dangerous Only professionals can replace the components of the machine Make sure the connecting wires inside the machine are correctly connected after replacing ...

Страница 5: ...ntion to fire safety cutting Ensure there is fire extinguisher nearby and make sure someone has been trained to operate the fire extinguisher Do not weld closed container Do not use this machine for pipe thawing Hot workpiece can cause severe scald Do not touch hot workpiece with bare hands Cool the torch for a while after continuously working cutting Excessive noise does great harm to people s he...

Страница 6: ... System characteristics 5 2 INSTALLATION AND CONNECTION 6 2 1 Installation requirements 6 2 2 Precautions 7 3 OPERATION 9 3 1 Panel functions of L20701 9 3 2 10 Notes for cutting operation 11 3 5 Cutting parameters table 12 4 MAINTENANCE 14 4 1 Daily maintenance 14 4 2 Periodic check 15 5 TROUBLESHOOTING 16 1 cutting cutting Panel functions of L208 3 3 Operation method 11 3 4 3 6 Replacement of el...

Страница 7: ...208 6 4 40 96 25 300 20 40 HF 10 0 3 0 5 F IP21S 85 0 70 Arc ignition ode m Post flow time S Gas pressure range Mpa Enclosure ingress protection Air cooling 4 6 30 92 5 325 20 30 Non HF 10 0 3 0 5 B IP21S 85 0 70 Air cooling 1 1 GENERAL DESCRIPTION 1 1 Model coding Product code Code for rated output current Inverter air plasma cutter Figure 1 1 Model coding 1 2 Technical parameters Table 1 1 Gener...

Страница 8: ...nd weight Table 1 2 Overall size and weight of the machine Figure 1 2 Appearance and size of the machine Unit mm Weight Kg Model Overall size L W H CUT40 L20701 CUT 0 L208 415 155 315 460 160 320 10 3 11 6 H W L 3 ...

Страница 9: ...emark Material code Cutting torch Earth clamp Operator s manual CUT series Standard configuration Standard configuration Standard configuration Standard configuration 1 1 1 1 Table 1 4 Configuration of CUT30 L208 Cutting machine CUT40 L20701 300A 6mm KDP16D 3m PT 31 Name Specification Quantity pcs Remark Material code Cutting torch Earth clamp Operator s manual CUT series Standard configuration St...

Страница 10: ...ing power supply inverter technology greatly reducing the volume and weight of the cutter and obviously enhancing the conversion efficiency by 30 Features of CUT series Economic and practical by adopting compressed air as the plasma gas source The cutting speed has increased by 1 8 times when compared with oxyacetylene cutting It can cut thick steel plate conveniently and quickly It is easy to ign...

Страница 11: ...the normal work time of the machine under rated maximum current holding in the period when taking 10 minutes as a period The rated duty cycle of this machine is 40 60 Using the cutting machine continuously overrunning the rated load may lead to overheating of the machine and frequently using the machine overrunning the rated load may accelerate the aging of the machine or even burn the machine U2 ...

Страница 12: ...put cable Connection of cutting torch Connect the copper nut on the cutting torch to the gas electric connector on the front panel of the machine and tighten it clockwise to avoid gas leakage Insert the quick plug on the work clamp into the output terminal on the front panel of the machine and tighten it clockwise Connection of the torch trigger Insert the plug of the torch trigger on the cutting ...

Страница 13: ...on of the reducer valve Steps for reducer setting are as follows start the gas flow lift the pressure control knob upward adjust the gas pressure to the desired value by rotating the knob rotate to direction to increase gas pressure rotate to direction to reduce gas pressure press down the pressure control knob to get the knob locked Drain the water by turning the drain knob when there is too much...

Страница 14: ... is of automatic mains voltage compensation which ensures that the cutting current varies within the given range In case that the input mains voltage exceeds the tolerance value it would possibly damage the machine The operator should understand this circumstance fully and adopt relevant precautions Remember to observe the max load current at any moment refer to the corresponding duty cycle Make s...

Страница 15: ...r of the machine 1 2 3 4 No Part name Function Overcurrent in dicator To indicate the machine is under ov ercurrent protection status when it illuminates 5 6 7 The power ight To indicate the machine work properly Plastic shutter As the exit for air duct for ventilation and heat dissipation To connect the control signal of cuttin g torch Interface for torch trigger Gas electric connector To connect...

Страница 16: ...e work properly Plastic shutter As the exit for air duct for ventilation and heat dissipation Current control knob To adjust the output current value output terminal To connect the earth clamp 1 2 3 No Part name Function 4 Air reducer valve To adjust the pressure of the input air Cooling fan For heat dissipation through forced air cooling Cable For power supply input Power switch To control the ON...

Страница 17: ...o initiate the cutting from the edge of workpiece unless penetration is needed Ensure spatters fly from the bottom of workpiece while cutting If spatters fly from the top of workpiece it indicates that the workpiece can not be fully cut because the cutting torch is moved too fast or the cutting current is too low Keep the nozzle slightly touching the workpiece or keep a short distance between the ...

Страница 18: ...ct proper current according to the cutting parameters table workpiece material cutting thickness and cutting speed etc The figure in the below table is an approximation Table 3 1 Cutting speed in when cutting current is 30A m m 9 8 7 6 5 4 3 2 1 0 1 0 28 0 28 0 28 1 1 1 1 5 6 5 6 5 6 5 6 0 52 0 52 Cutting thickness mm Mild steel Galvanized steel Stainless steel Aluminum Brass Red copper Table 3 2 ...

Страница 19: ...ll be strong arc in the nozzle which will break down the electrode and the nozzle or even burn the torch Nozzles of different models are different so ensure the nozzle is of the same model when replacing it Electrode wear 1 5mm Distortion of the nozzle Cutting speed declining arc with green flame Difficult in arc ignition Irregular cut ...

Страница 20: ...nning Earth cable Cutting cable Whether the grounding wires including workpiece GND wire and cutting machine GND wire break off Whether the insulating layer of the cable is worn or the conductive part of the cable is exposed Whether the cable is drawn by an external force Whether the cable connected to the workpiece is well connected Items Checking requirements Remarks Table 4 2 Daily checking of ...

Страница 21: ... uncovering the cutting machine When the machine is powered on keep hands hair and tools away from the moving parts such as the fan to avoid personal injury or machine damage Avoid rain water and vapor infiltrating the machine If there is dry it and check the insulation of the cutting machine including that between the connections and that between the connection and the enclosure with an ohmmeter ...

Страница 22: ...the machine the power indicator illuminates and the fan works When pressing the control button of the cutting torch the solenoid valve inside the machine functions but there is no HF discharge rustling and the red LED inside the machine is on 2 The step up transformer on the bottom PCB is damaged 3 The control module is damaged Turn on the machine the power indicator illuminates and the fan works ...

Страница 23: ......

Страница 24: ...SHENZHEN JASIC TECHNOLOGY CO LTD No 3 Qinglan 1st Road Pingshan District Shenzhen Guangdong China www jasictech com ...

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