98 - "Ito" Arc Not On Within The Pre-Established Time; 99 - "Off". Incorrect Mains Voltage Value (Machine Off) - Cebora KINGSTAR 400TS Manual De Servicio

CEBORA S.p.A.
101

3.6.37- 98 - "ITO" Arc not on within the pre-established time/

The "ITO" is active in MIG processes and can be enabled and regulated from the control
panel (see Instruction Manual).
This alarm indicates that the wire has emerged from the torch for more than the set
length without current passing through it.
To analyse the situation, it is advisable to check whether the alarm was caused by
malfunctioning of the wire movement circuit or the welding current generation circuit and
perform the tests in section 3.5.7, 3.5.8 and 3.5.9.

3.6.38- 99 - "OFF". Incorrect mains voltage value (machine off).

This message may arise in the event of a short mains power cut, during which the
control circuits remain powered for a few instants and detect the incorrect mains
voltage.
In particular, precharge board (39) records the lack of mains voltage and notifies control
board (37) ("MAINS" signal), which stops the power source and turns on the "OFF"
message on display D1.
The "MAINS" can be checked at J13 of control board (37), terminals 8(+) and 4(-).
Possible values:
- <+0.1 Vdc = mains OK;
- +0.1 ÷ +0.5 Vdc, = phase missing, error 63;
- +3.3 Vdc = mains not OK, error 99.
Carry out the test in section 3.5.1 and, if necessary, replace precharge board (39)
and/or control board (37).
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