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Summary of Contents for GOODWIN P30U
- Page 1 OPERATION MANUAL for the GOODWIN P30U UNDERWATER AIR PLASMA CUTTING SYSTEM Page 1 P30U Instruction Manual Revision : 1 1st December 2006...
- Page 2 Health and Safety at Work legislation. GOODWIN AIR PLASMA LIMITED KERNAN DRIVE LOUGHBOROUGH LEICESTERSHIRE LE11 5JF ENGLAND Tel No. +44 (0)1509 237369 Fax No. +44 (0)1509 234942 Email. goodwinplasma@aol.com Page 2 P30U Instruction Manual Revision : 1 1st December 2006...
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Page 3: Table Of Contents
7.1 ..........................The Power Unit 26 7.1.1........................... Circuit Diagram 27 7.1.2......................... MACHINE LAYOUT 7.1.2....................DIAGNOSTIC INDICATORS. 7.2 ....................The Torch and Hose Set Repair 7.3 ............................ Maintenance Page 3 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 4: Safety
The plasma arc produced at the torch head is a jet of high energy and is potentially dangerous. Users unfamiliar with a plasma arc should seek basic training. Goodwin Air Plasma can offer comprehensive training courses. -
Page 5: Safety Features
The plasma unit should be shipped and stored in the upright position to avoid any heavy internal components breaking free from their mountings. e) Storage should be undercover, preferably in a clean dry environment. Page 5 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 6: Introduction To The Plasma Process
The HF unit operates automatically to establish an arc when power is applied to the torch and it ceases to operate when the pilot or main arc is established. Page 6 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 7: Installation
If recommended by Goodwin Air Plasma, the power factor correction circuit can be disconnected however this will increase the input current demand. The P30U has auto- matic switching of the power factor correction so that it only operates whilst cutting, so it is unlikely to cause this problem. -
Page 8: Phase Determination
Water Tank De-ionizing Filter Fan Rotation Anti- Clockwise If there is any doubt regarding installation, consult your distributor or Goodwin Air Plasma. Page 8 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 9: Plasma And Torch Connections
When first switching on, allow enough time for the water to circulate through the system. Top up the header tank as required. Use only distilled or de-ionised water. (See section 7.1 regarding use of methanol in freezing conditions). Page 9 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 10: Control Of Thetorch
Note that it is good practice to leave the power unit running at all times when the torch is underwater to prevent the torch and air hose filling with water. Cooling air will flow through the torch at all times when the machine is switched on. Page 10 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 11: Operation
MAIN ISOLATOR Isolates machine from mains supply. It may be padlocked in the off position. EMERGENCY STOP Switches machine off. The switch latches mechanically and must be rotated to release. Page 11 P30U Instruction Manual Revision : 1 1st December 2006... - Page 12 If supplied this should not normally be kept with the machine to prevent use in inappropriate circumstances. It should never be used when operating underwater Page 12 P30U Instruction Manual Revision : 1 1st December 2006...
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Page 13: Warning Indicators
Indicates the pilot arc has excessive current, due to consumable condition or insufficient air flow. EARTH LOOP ENABLED - This shows that the dual earths are properly connected to the workpiece which will enable the diver's switch Page 13 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 14: Power Up Procedure
Page 14 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 15: Cutting Procedure
Continuing to try and cut under these conditions may result in damage extending beyond the consumables to other parts of the torch. Page 15 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 16: Cutting Speed
Arc fails to pierce the material. Blow back of dross will damage the nozzle. MAXIMUM CUTTING SPEED Drag back of the arc is around 45°, but cut quality will deteriorate. Page 16 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 17: Piercing Thicker Materials With A Hand Torch
If the torch is pivoted about the nozzle there is a risk of material being blown back onto the nozzle which will cause damage to the nozzle or even to the torch itself. Page 17 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 18: Troubleshooting
2mm deep before the electrode is considered to be expired. 5.5.2. Alignment. The alignment and construction of the Goodwin Air Plasma Torch is such that problems of grinding and adjusting electrodes do not occur. With reasonable care taken in fitting the consumables, alignment problems should not arise. -
Page 19: Operational Damage
Note that careful communication procedures should be used when this is done, to ensure the supervisor does not “make it hot” if the diver should inadvertently touch the torch switch. ILLUSTRATION TO SHOW ELECTRODE DAMAGE NEW ELECTRODE USED ELECTRODE WORN OUT EXPIRED Page 19 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 20: Changing Consumables
5.6 Changing Consumables The Goodwin Underwater PTU torch carries a number of elements known as the CONSUMABLES which are eroded during the cutting process. They consist of: Nozzle. Electrode Assembly comprising: Electrode Swirl Bush O ring Other parts that may be damaged and replaced by the user are:... - Page 21 Removal of a damaged insulator may require use of pliers or similar, if the slots have been damaged. The contact tube can also be replaced if necessary, as on the standard torch, with the 1/8” Allen Page 21 P30U Instruction Manual Revision : 1 1st December 2006...
- Page 22 Replacement is the reverse of removal but it is important not to over tighten as this may cause subsequent electrode fitment to be off centre, producing bevel cuts. Page 22 P30U Instruction Manual Revision : 1 1st December 2006...
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Page 23: Technical Data
1.0 kg Effective weight (inc. hose set) 1.5 kg Hose set lengths available 10m, 15m, 20m, 30m, longer with 30m Extensions. Hose set water capacity 0.6 litres per 10m length Page 23 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 24: Service Information
24way socket to the Supervisors Panel. Whenever any of the interlocks come into operation the appropriate warning light on the front panel will indicate to assist in the diagnosis of the problem. Page 24 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 25: Circuit Diagram
7.1.1. Circuit Diagram Page 25 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 26: Machine Layout
7.1.2. Machine Layout 18 19 16 20 12 14 13 Page 26 P30U Instruction Manual Revision : 1 1st December 2006... - Page 27 (Not Shown)........ Dix Connector PX4201RD300S (Not Shown). Power Factor Correction Capacitor PX54C0038 (NS) ..(Water fitting, Return) Mini Check Unit Long PX29V01 (NS) ..(Water fitting, Feed) Mini Check Unit Short PX29V10829 Page 27 P30U Instruction Manual Revision : 1 1st December 2006...
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Page 28: Diagnostic Indicators
Check air flow adjustment, air leaks,restricted air flow, or consumable condition. EARTH LOOP MONITOR INDICATOR Indicates that a satisfactory dual earth connection has been made to the workpiece, which will enable the Diver's Switch. Page 28 P30U Instruction Manual Revision : 1 1st December 2006... -
Page 29: The Torch And Hose Set Repair
Rebuilding torches requires special training and instruction and is not within the scope of this manual. Users who wish to repair damaged torches themselves should consult their supplier or Goodwin Air Plasma for detailed advice. A separate manual is available for suitably trained personnel. -
Page 30: Maintenance
Goodwin Air Plasma Cutting Systems are designed so that only a minimum amount of maintenance is required. By following a regular and careful maintenance procedure, the equipment will give a long productive life.
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