Miyachi Unitek ISA Series, Operator'S Manual

Page: 6 / 122

ISA-4001CR INVERTER POWER SUPPLY
vi 990-364
CONTENTS (Continued)
Page
Chapter 4. Operating Instructions
Section I: Introduction ........................................................................................................................... 4-1
Operator
Safety ................................................................................................................................ 4-1
Before You Start ............................................................................................................................... 4-1
Preparing for Operation ................................................................................................................... 4-1
Section II: Operation .............................................................................................................................. 4-2
Starting Welding Operation ............................................................................................................. 4-2
Check the Valve Sequence .............................................................................................................. 4-2
Section III: Shutdown ............................................................................................................................ 4-3
Stopping Welding Operation ........................................................................................................... 4-3
Chapter 5. Maintenance
Section I: Before You Start .................................................................................................................... 5-1
Safety
Precautions ........................................................................................................................... 5-1
Cleaning ........................................................................................................................................... 5-2
Section II: Troubleshooting ................................................................................................................... 5-3
Section III: Fuse Failure and Replacement ............................................................................................ 5-6
Fuse
Locations ................................................................................................................................. 5-6
Main PCB ................................................................................................................................. 5-7
Valve Driver Board .................................................................................................................. 5-8
Power Supply ............................................................................................................................ 5-8
Power Transformer ................................................................................................................... 5-8
Fuse Block ................................................................................................................................ 5-8
Valve Transformer Fuse, Secondary ........................................................................................ 5-9
24 Volt DC Power Supply (Not Shown) ......................................................................................... 5-9
Section IV: Maintenance Procedures ................................................................................................... 5-10
Maintenance
.................................................................................................................................. 5-10
Checking Water Hoses ........................................................................................................... 5-10
Draining Water Hoses ............................................................................................................ 5-10
Flushing Water Hoses and Cooling Chambers ....................................................................... 5-10
Memory Battery Replacement ....................................................................................................... 5-11
Section V: Spare Parts ......................................................................................................................... 5-12
Spare Parts .................................................................................................................................... 5-12
Section VI: Repair Service, Storage, Shipment ................................................................................... 5-13
Repair
Service ................................................................................................................................ 5-13
Preparation for Storage or Shipment ............................................................................................. 5-13