7. TROUBLE SHOOTING
Warning! An electric shock can be fatal. Before doing any work on the machine:
–Switch it off and unplug it from the mains.
–Put up a clearly legible and easy-to-understand warning sign to stop anybody inadvertently switching it on again.
–Check to make sure the electrically charged components (e.g.capacitors) have been discharged.
–Bolts in machine case also work for ground connection. Never use other bolt that can not work for ground connection.
Error code display
This series of machines have automatic protection and error code display function. Relevant Cause & Remedy can be found according to below Error codes, as shown in Table5-1.
| Code | Trouble | Cause | Remedy |
|---|---|---|---|
| E0A | Water shortage protection |
|
|
| E10 | No current output protection |
|
|
| E15 | Abnormal on power up | The start signal is ON when welding machine powers on | Turn off the machine, check the start signal |
| E17 | Over-current protection |
|
|
| E18 | Voltage feedback is unusual |
– Circuit failure – Voltage feedback signal line disconnected – Wire feeder welding cable disconnected – Wire feeder control cable disconnected – Welding cable not connected – Welder main control board failure |
|
| E19 | Over-heat protection |
1. Environmental:
|
|
| E40 | Communication between display and main board abnormal |
|
Please contact supplier |
| E42 | Communication between welding machine and wire feeder is abnormal |
|
Please contact supplier |
| E84 | Communication fault between controller and robot cabinet |
|
|
| E85 | Communication fault between controller and welding machine |
|
Check and replace components — contact supplier |
Important! If any error message that is not described here appears on the displays, then the fault is one that can only be put right by a service technical. Make a note of the error message shown in the display, and the serial number and configuration of the power source, and get in touch with our after-sale service, giving them a detailed description of the error.
Power source trouble shooting
Note! The flowing troubles and causes are uncertain. However, duringthe process of MIG Pulse and the normal using conditions, that mighthappen| Trouble | Remedy |
|---|---|
| Power source cannot work |
|
| Automatic tripping of main circuit breakers |
|
| Unstable welding performance |
|
| No output after start-stop signal is given |
|
| Welding parameters are not adjustable |
|
| Panel is not showing |
|
| Fan is not working |
|
| Gas protection is not normal |
|
8 CARE AND MAINTENANCE
Before open the machine
Warning! An electric shock can be fatal. Before doing any work on the machine:
–Switch it off and unplug it from the mains.
–Put up a clearly legible and easy-to-understand warning sign to stop anybody inadvertently switching it on again.
–Check to make sure the electrically charged components (e.g.capacitors) have been discharged.
–Bolts in machine case also work for ground connection. Never use other bolt that cannot work for ground connection.
Maintenance
Please follow the instructions as below to ensure normal lifespan of power source.
- Conduct safety check at regular intervals (see “Safety rules”)
- Dismantle machine side panels and clean machine inside with clean and low-pressure compressed air by professional technician, not less than twice per year. Clean the components at a certain distance only;
- If a lot of dust has accumulated, clean the cooling-air ducts.
Maintenance of water-cooled welding torch
For water-cooled welding torch:
- Check the connections of water cooling system
- Check the coolant level and cleanliness(clean coolant only)
- Frequently check coolant’s back flow state
Daily maintenance
Fig. 8-1 Daily maintenance
