53- "Release Start Button" On Display A Start Button Pressed At Power Up Or During Reset After Shut-Down Due To Overtemperature Or Open Casing; 54- "Current Not 0" On Display A Torch - Workpiece Short-Circuit On Start-Up; 56- Excessive Duration Of Short-Circuit At Output; 57- Excessive Current In Wire Feed Motor (11) - Cebora SYNSTAR 270 T Manual De Reparaciones

3�4�17 -53- "Release start button" on display A Start button pressed at power up or during reset
after shut-down due to overtemperature or open casing�
The alarms triggered if temperature exceeds the permitted limits and the wire feeder casing is open cause power
source shut-down, with an indication of the alarm type on the control panel.
These alarms reset automatically once the temperature returns to within the permitted limits or the casing is closed.
This reset may occur when the start command is present. Therefore, to avoid sudden start-up of the power source
due to this random reset, this situation is detected and causes the power source to shut down, indicating "Release
start button" on display (A)�
To reset correct operation, remove the start command (see section 3.3.4).
3�4�18 -54- "Current not 0" on display A Torch - workpiece short-circuit on start-up�
When the power source is turned on, the control checks operating conditions by running a short no-load output
voltage generation test.
On this occasion, it is important to ensure that the torch does not touch the workpiece to be welded or the welding
bench.
Error 54 indicates a possible short-circuit or loss of insulation in the power circuit at the output of secondary diode
assembly on power board (56).
Check the power wiring between terminals VITE1 and VITE2 on power board (56) and output terminals (3) and (4) of
the power source, also check the wiring between connector J10 on power board (56) and current transducer (59).
If there are any defective connections, repair them and replace any damaged components.
3�4�19

-56- Excessive duration of short-circuit at output

EN
During welding, the result of detecting output short-circuits is normal, provided they do not last more than a given
period. "Error 56" indicates that the short-circuit has exceeded this limit.
This situation may be determined by the short-circuit created between the wire nozzle and gas diffuser on the MIG
torch due to dirt or metal dust deposits.
In any case, clean the torch and check:
power wiring between VITE1 and VITE2 terminals of power board (56) and output terminals (3) and (4) of the power
source.
If there are any defective connections, repair them and replace any damaged components.
If necessary, perform the "no-load operation" test in section 3.3.8 and the "operation on resistive load" test in section
3.3.9. tests.
Replace power board (56) and panela board (47).
3�4�20 -57- Excessive current in wire feed motor (11)
Panel board (47) is equipped with a circuit to limit the current supplying motor (11) to protect it against overload. The
circuit detects when the motor current is pulsed or continuous, if the current exceeds 4A for longer than approximately
2 sec., this triggers error -57-.
The current taken up by the motor is indicated on display (1) when "Power Source Status" is selected by following the
sequence: Menu-Settings-Machine Status, to show the machine status (see fig. 3.4.20).
46
Fig. 3.4.20
3302355