Victor A120 plasma supply troubleshoot

Pressure Indicator

Fault

Max

Over Pressure

90

Internal Error

85

Shorted Torch

80

Consumables Missing

75

Start Error

70

Parts in Place

65

Input Power

Min

Under Pressure

Problem ymptom

Possible Cause

Recommended Action

ON / OFF Switch is on but the A/C Indicator does not light

1. Primary power disconnect is in OFF position.

2. Primary fuses / breakers are blown or tripped.

3. Units internal fuse blown.

4. Faulty components in unit.

1. Turn primary power disconnect switch to ON position.

2. a) Have qualified person check primary fuses / breakers. b) Connect unit to known good primary power receptacle

3. a) Replace fuse. b) If fuse blows again, return to authorized service center for repair or replacement.

4. Return to authorized service center for repair or replacement.

Fault indicator flashing, 65 PSI indicator flashing

1. INPUT VOLTAGE SELECTION SWITCH set for incorrect voltage. 2. Primary input voltage problem.

3. Faulty components in unit.

1. Set INPUT VOLTAGE SELECTION SWITCH to match primary input voltage.

2. Have qualified person check primary voltage to insure it meets unit requirements see section 2.05.

3. Return to authorized service center for repair or replacement.

TEMPERATURE indicator on. FAULT indicator flashing.

1. Air flow through or around the unit is obstructed.

2. Duty cycle of the unit has been exceeded

3. Failed components in unit

1. Refer to clearance information – section 2.04

2. Allow unit to cool.

3. Return to authorized service center for repair or replacement.

GAS LED off, FAULT and MIN pressure indicators flashing.

1. Gas supply not connected to unit.

2. Gas supply not turned on.

3. Gas supply pressure too low.

4. AIR PRESSURE CONTROL regulator set too low.

5. Failed components in unit.

1. Connect gas supply to unit.

2. Turn gas supply on.

3. Set air supply inlet pressure to unit to 120 psi.

4. Adjust regulator to set air pressure - see section 4.02.

5. Return to authorized service center for repair or replacement.

FAULT and 70 PSI indicators flashing.

1. Shield Cup loose.

2. Torch not properly connected to power supply.

3. Problem in torch and leads PIP circuit.

4. Failed components in unit.

1. Hand tighten the shield cup until it is snug.

2. Insure torch ATC is securely fastened to unit.

3. Replace torch and leads or return to authorized service center for repair or replacement.

4. Return to authorized service center for repair or replacement.

FAULT and 75 PSI indicators flashing.

1. Start signal is active when ON/OFF SWITCH is turned to ON position.

2. Problem in the torch and leads switch circuit.

3. Failed components in unit.

1. Start can be active for one of the following: • Hand torch switch held closed • Hand pendant switch held closed • CNC START signal is active low Release the START signal source

2. Replace torch and leads or return to authorized service center for repair or replacement.

3. Return to authorized service center for repair or replacement.

FAULT & 80 PSI indicators flashing. Gas flow is cycling on and off.

1. Torch shield cup is loose. 2. Torch tip, electrode or starter cartridge missing.3. Torch start cartridge is stuck. 4. Open conductor in torch leads.5. Problem in the torch and leads switch circuit.6. Failed components in unit.

1. Tighten shield cup by hand. Do not overtighten. 2. Turn off power supply. Remove shield cup. Install missing parts.3. Turn off power supply. Bleed down system pressure. Remove shield cup, tip and start cartridge. Check start cartridge lower end fitting for free movement. Replace if fitting does not move freely.4. Replace torch and leads or return to authorized service center for repair or replacement.5. Replace torch and leads or return to authorized service center for repair or replacement.6.Return to authorized service center for repair or replacement. overtighten。

Nothing happens when torch switch or remote switch is closed ( Or CNC START signal is active) No gas flow, DC LED OFF.

1. Problem in the torch and leads switch circuit (Remote pendant switch circuit).2. CNC Contoller device not providing Start signal.3. Failed components in unit.

1. Take Torch and Leads (Remote Pendant) to Authorized Repair Facility. 2. Contact Controller manufacturer.3. Return to authorized service center for repair or replacement.

FAULT and 85 PSI indicators flashing.

1. Upper O-Ring on torch head is in wrong position.2. Torch starter cartridge is stuck. 3. Worn or faulty torch parts.4. Shorted Torch.5. Temporary Short indicated by 5 blinks per second.6. Power Supply Failure (Standard rate of blinking)

1. Remove shield cup from torch; check upper O-Ring position; correct if necessary.2. Turn off power supply. Bleed down system pressure. Remove shield cup, tip and starter cartridge. Check starter cartridge lower end fitting for free movement. Replace if fitting does not move freely.3. Inspect torch consumable parts. Replace if necessary.4. Replace torch and leads or return to an authorized service center for repair.5. Release torch switch and reactivate.6. Return to autorized service center for repair or replacement.

No Fault lights on, no arc in torch.

1. Failed components in unit.

1. Return to an authorized service center for repair.

FAULT and 85 PSI indicators flashing

1. Internal Error

1. Turn the ON / OFF switch OFF then back ON again. If that does not clear the fault, return to an authorized service center for repair.

Pilot arc is on but cutting arc will not establish

1. Work cable not connected to work piece.2. Work cable/connector broken. 3. Failed components in unit.

1. Connect work cable.2. Replace work cable. 3. Return to an authorized service center for repair.

Torch cutting is diminished

1. Incorrect current setting.2. Worn torch consumables.3. Poor work cable connection to work piece. 4. Torch being moved too fast.5. Excessive oil or water in torch.6. Failed components in unit.

1. Check and adjust to proper setting.2. Check torch consumables and replace as needed.3. Check the connection of the Work Lead to the work piece. 4. Reduce cutting speed.5. Refer to "Check air quality" in section 3 Torch.6. Return to an authorized service center for repair.