Safety Messages; Maintenance; Maintenance Of The Equipment; Diagnosis Chart - Air Liquide OERLIKON CITOCUT 20i Instruction De Securite D'emploi Et D'entretien

5.2

SAFETY MESSAGES

The power source output voltage has been over
250V for more than one second.
The electrode and nozzle are short-circuited dur-
ing the striking or cutting phases.
The air -cooling system is out of order.
The main power supply isn't recognized by the
generator.
Communication between generator and automat-
ic machine is not ok.
Plastron removed.
The power source stops automatically for safety reasons.
TYPE OF BREAKDOWN
- No pilot arc
- Start switch on
- Green indicator light not lit up
- No pilot arc
- Start switch on
- Display on
- No pilot arc
- Start switch on
- Mains fault displayed
- No pilot arc
- Start switch on
- Thermal fault displayed
- No pilot arc
- Start switch on
- Pressure fault displayed
- No pilot arc
- Start switch on
- Torch tip fault displayed
- Red light alight
- No pilot arc striking
- Difficult striking
For any work inside the power source other than the points mentioned above: CALL IN A TECHNICIAN

MAINTENANCE

POSSIBLE CAUSES
- Supply cable broken
- Fuses on the cards faulty
- Torch cable broken
- Trigger connections open circuit
- Power too low
- Mains voltage outside tolerances:
360 V < mains U > 440 V
207 V < mains U > 253 V
- Duty cycle exceeded, unit overload
- Insufficient cooling air
- Fan not turning
- Lack of pressure
- Damaged air pipe
- Torch tip wrongly positioned
- Torch connection damaged
- Unit not reset
- Worn electrode / Nozzle
- No compressed air at the end of the torch
6.0 MAINTENANCE
CAUTION: DISCONNECT THE EQUIPMENT FROM THE ELEC-
TRICITY MAINS BEFORE DOING ANY MAINTENANCE
WORK.
6.1

MAINTENANCE OF THE EQUIPMENT

Twice a year, depending on the degree of use of the unit, inspect:
- The cleanliness of the equipment
- The electrical and gas connections
- The air filter-regulator.
For all operations:
- Remove the equipment cover.
- Remove the screws from the cover (7 mm wrench).
6.2

DIAGNOSIS CHART

SERVICING OPERATIONS CARRIED OUT ON ELECTRIC IN-
STALLATIONS MUST BE PERFORMED BY PERSONS QUAL-
I F I E D T O D O T H I S K I N D O F W O R K ( S E E S A F E T Y
RECOMMENDATIONS SECTION).
CHECKS AND REMEDIES
Check:
- Mains voltage before and after the on/off switch
- Check the supply violtages on the card
- Check the connections
- Check the electrode / nozzle short circuit without air
- Check the presence of an air supply when the trigger is pressed.
- Check the mains voltage
- Connect the unit to another socket
- Wait for the cooling phase. The unit starts again automatically
- Make sure the front and back of the power source are free of obstacles
- Check that P>4,2 Bars
- Increase the air pressure if necessary
- Check the condition of the air pipe
- Check the torch tip position
- Check the the torch tip connections on the cycle card
- Replace the wearing parts
- Check the air circuit
6 EN
EN