CEBORA S.p.A.
9
3.302.155
22/01/04
Correct?
Correct?
3.3
- Troubleshooting.
WARNINGS
ANY INTERNAL INSPECTIONS OR REPAIRS MUST BE CARRIED OUT BY QUALIFIED
PERSONNEL.
BEFORE CARRYING OUT ROUTINE MAINTENANCE, DISCONNECT THE POWER
SOURCE FROM THE MAINS.
NOTES
Items in
boldface
describe problems that may occur on the machine (symptoms).
q
Operations preceded by this symbol refer to situations the operator must determine (causes).
♦
Operations preceded by this symbol refer to actions the operator must perform in order to
solve the problems (solutions).
In the following chapters the tests and descriptions preceded by a parenthetical indication, e.g.
(art. 574) refer only to the power sources listed in parentheses. If there is no such indication, the
test and description refer to all power sources.
3.3.1
- The power source does not start, control panel off.
MAINS SUITABILITY TEST.
q
Missing voltage at the power source input due to tripped mains protection.
NO
YES
♦
Eliminate any short-circuits or isolation leaks between the various conductors and
towards earth in connections between the power cable, terminal board (46),
contactor (47), switches (50) and (51), service transformer (44) and fan (26).
♦
Mains not suitable to power the power source (ex.: insufficient installed power).
MAINS CONNECTION TEST.
q
(art. 574) Contactor (47), power terminals = approximately 230 Vac.
q
(arts. 575, 591, 593) Contactor (47), power terminals = approximately 3 X 400 Vac or 3 X
230 Vac, depending on mains voltage.
YES
NO
♦
Check power cable and plug and connections on terminal board (46), and replace
if necessary.
♦
Check the mains voltage conditions.
