Cebora 305 Manual De Servicio página 16

1 GENERAL INFORMATION. ..................................17
1.1 i . ................................................................17
ntroDuction
1.2 g
eneral service policy
1.3 s
aFety inFormation
1.4 e
lectromagnetic compatibility
2 SYSTEM DESCRIPTION. ........................................17
2.1 i . ................................................................17
ntroDuction
2.2 t
echnical speciFications
2.3 p
ower source art
EN
2.4 p
rogramming
2.5 p
ower source Fittings
3 MAINTENANCE. ......................................................21
3.1 p
erioDic inspection
3.2 t
roubleshooting
3.2.1 The power source does not start, control panel off. .............. 21
3.2.2 Fan (32) stopped. ....................................................................22
3.2.3 Control panel doesn't show correct values. ...........................22
3.2.4 Start button produces no effect. .............................................23
3.2.5 No gas flows from the torch. ..................................................23
3.2.6 The wire feeder motor does not work. ...................................24
3.2.7 Open circuit output voltage not regular. ................................ 25
3.2.8 Output voltage on resistive load operation not regular. ........ 25
3.2.9 Arc is difficult to strike, the arc shuts off immediately after
striking. ..................................................................................26
3.2.10 Welding quality is not satisfactory, the wire speed is not
suited to the output current. ...................................................26
3.2.11 When the start button is released, the wire sticks to the
workpiece (ineffective motor braking). ................................. 27
3.3 e . .................................................................27
rror coDes
3.3.1 -02- EEprom error. ................................................................. 27
3.3.2 -06- Communication error detected by panel board (19). ..... 27
3.3.3 -09- Communication error detected by INV board on
power board (34). ............................................................ 27
16
. ................................................17
. .....................................................17
. ...................................17
...............................................17
. 305.00. ............................................17
, . ..................................20
Firmware upDate
,
commanDs anD signals
, . ......................................21
cleaning
. .........................................................21
CONTENT
3.3.4 -10- Missing voltage and current at the power source out-
put. .................................................................................. 27
3.3.5 -42- "Motor fault" on display A. Motor (12) encoder sig-
nal error. .........................................................................28
3.3.6 -53- "Release start button" on display A. Start button
pressed at start-up or while resetting from stop due
to overtemperature. ........................................................28
3.3.7 -54- "Current not 0" on display A. Short-circuit between
torch and workpiece upon start-up. ................................28
3.3.8 -56- Short-circuit at the output lasts too long. .......................28
3.3.9 -57- "Motor current high" on display A. Excessive wire
feeder motor (12) current. ...............................................28
3.3.10 -61- Mains voltage below minimum allowed value. .....................29
3.3.11 -62- Mains voltage over maximum allowed value. ....................29
. ..........20
3.3.12 -74- "th1" on display A. Secondary diodes group high
temperature. .................................................................... 29
3.3.13 -77- "th2" on display A. PFC igbt (boost converter) high
temperature. .................................................................... 29
3.3.14 -99- "POWER OFF" on display A. Incorrect mains volt-
age (machine shutdown). ................................................ 29
4 COMPONENTS LIST ...............................................44
4.1 p
ower source parts Drawing
4.2 p
ower source parts list
5 ELECTRIC DIAGRAMS ..........................................44
5.1 p
ower source
5.2 w
aveForms
5.2.1 Speed feedback signal from motor encoder (par. 3.2.6). ...... 45
5.2.2 Open-circuit voltage on the TF5 transformer secondary
circuit (par. 3.2.7). .................................................................. 45
5.2.3 Wire feeder motor (12) voltage during correct braking
(par. 3.2.11). ............................................................................46
5.2.4 Wire feeder motor (12) voltage during incorrect braking
(par. 3.2.11). ............................................................................46
5.3 s
upply boarD
5.4 p
ower boarD
5.5 p
anel boarD
........................................44
...............................................44
................................................................44
. ...................................................................45
(40), . 5602279/a. .............................47
coD
(34), . 5602558. .................................48
coD
(19), . 5602545. ..................................52
coD
3302327/A