Migatronic MTE DIALOG, Instruction Manual

Page: 19 / 36

19
FAULTS
Only to be carried out by qualified electricians.
f the machine does not weld satisfactorily, follow the check list.
Action Check
Change fuses
no
Are the mains fuses satisfactory?
(Use testing meters)
yes
Repair connection plug, cable etc.
no
Is there voltage on mains cable
connection in MTE? Check all 3
phases.
yes
Change defective mains switch
no
Are all 3 phases reaching terminals
U and W on the transformer? (See
circuit diagram)
yes
Return defective box yes
Check the electronic box by
exchanging it for another box. Is the
problem solved?
no
Change defective triac print yes
Check triac print (A2) by exchanging
it for another triac print. Is the
problem solved?
no
Change defective HF box yes
Does the HF work. Check by
exchanging the box for another one.
Is the problem solved?
no
Call the Service Engineer