|
| TROUBLESHOOTING | ||||
|
|
|
|
|
|
|
|
| Observe all Safety Guidelines detailed throughout this manual | ||||
|
|
|
|
| ||
| PROBLEMS | POSSIBLE AREAS OF |
| RECOMMENDED | ||
| (SYMPTOMS) | MISADJUSTMENT(S) |
| COURSE OF ACTION | ||
|
|
|
|
| ||
|
|
| OUTPUT PROBLEMS |
| ||
| Thermal LED is lit. | 1. Machine’ s | thermostat | has |
| |
|
|
| opened. Check for proper fan |
| ||
|
|
| operation. There are two main |
| ||
|
|
| fans in the PowerWave AC/DC. |
| ||
|
|
| One machine is located in the |
| ||
|
|
| lower portion of the machine |
| ||
|
|
| which should be running when- |
| ||
|
|
| ever the machine is on. The |
| ||
|
|
| other fan is located in the upper |
| ||
|
|
| portion of the machine and only |
| ||
|
|
| runs when the machine is trig- |
| ||
|
|
| gered. Check for material block- |
| ||
|
|
| ing intake or exhaust louvers, or |
| ||
|
|
| for excessive dirt clogging coo- |
| ||
|
|
| ing channels in machine. |
|
| |
|
|
| 2. DC Bus PC board thermostat |
| ||
|
|
| has opened check for excessive |
| ||
|
|
| load on 40VDC supply. |
|
| |
|
|
| 3. Be sure process does | not |
| |
|
|
| exceed duty cycle limit of the |
| ||
|
|
| machine. |
|
| If all recommended possible areas |
| Machine won’t weld, can’t get any | 1. Input voltage is too low or too | ||||
| output. (CR1 will not pull in.) | high. Make certain that input | of misadjustments have been | |||
|
|
| voltage is proper, according to | checked and the problem persists, | ||
|
|
| the Rating Plate located on the | contact your local Lincoln | ||
|
|
| rear of the machine. |
| Authorized Field Service Facility. | |
|
|
| 2. If the Thermal LED is also lit, |
| ||
|
|
| see “Yellow Thermal LED is Lit” |
| ||
|
|
| section. |
|
|
|
|
|
| 3.Primary current limit has been |
| ||
|
|
| exceeded. Possible short in out- |
| ||
|
|
| put circuit. Turn machine off. |
| ||
|
|
| Remove all loads from the output |
| ||
|
|
| of the machine. Turn back on. If |
| ||
|
|
| condition persists, turn power off, |
| ||
|
|
| and contact | an authorized |
| |
|
|
| Lincoln Electric Field Service |
| ||
|
|
| facility. |
|
|
|
4.This problem will normally be accompanied by an error code. Error codes are displayed as a series of red and green flashes by the status light. See "Troubleshooting the Power Wave / Power Feed System Using the Status LED" section of this text.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.