
CHAPTER 1: DESCRIPTION
STA SERIES AC CONTROLS
990-351
1-7
Modes
When the
WELD ON/OFF
pushbutton switch is set to
OFF
, pressing this pushbutton
switch will cause the Mode screen to appear on the display. See Chapter 3 for details
of this screen.
Reset
Pressing this pushbutton switch will reset the Control after a major error signal is
received. (Major errors are
Emergency Stop, Over-temperature, No Current, Mode
Change Error, End of Stepper Function, Weld1 or Weld2 Conduction High, Weld1 or
Weld2 Current High, Full Wave Conduction, Illegal Schedule Number,
or
SCR
shorted
.) Pressing this pushbutton also resets minor errors if auto reset is turned
OFF
. See
Chapter 3, Using STA Series Control Functions, Section VIII
.
Monitor
When the
WELD ON/OFF
pushbutton switch is set to
OFF
, pressing this pushbutton
switch will cause the Monitor screen to appear on the display. See
Chapter 3
for
details of this screen.
Stepper
When the
WELD ON/OFF
pushbutton switch is set to
OFF
, pressing this pushbutton
switch will cause the
Stepper
screen to appear on the display. See
Chapter 3
for
details of this screen.
This screen allows information to be programmed to compensate for gradual
degradation of the weld electrodes by adjusting power to compensate for that
degradation. Power can be adjusted either up or down.
Programming
Lock
This optional key lock prevents any change in the program when it is locked.
External Connectors
External connectors for Voltage Sensing, Current Sensing, Data & Communications (RS-232 or RS-
485), and cooling water for the SCRs are on a panel that can be mounted on the top, bottom, or sides of
the Control.
Содержание Miyachi Unitek STA-100A
Страница 1: ...990 351 Rev H AC WELDER STA SERIES OPERATION MANUAL...
Страница 18: ...CHAPTER 1 DESCRIPTION STA SERIES AC CONTROLS 1 4 990 351 STA 100A Series Major Components Typical...
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Страница 68: ...CHAPTER 5 MAINTENANCE STA SERIES AC CONTROLS 5 4 990 351...
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Страница 82: ...APPENDIX A TECHNICAL SPECIFICATIONS STA SERIES AC CONTROLS A 4 990 351 STA 200A AC Control Control...
Страница 86: ...APPENDIX B ELECTRICAL AND DATA CONNECTIONS STA SERIES AC CONTROLS B 4 990 351 Input Output Control Signals...
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Страница 96: ...APPENDIX D SYSTEM TIMING STA SERIES AC CONTROLS D 2 990 351 Continuous Seam Weld...
Страница 98: ...APPENDIX D SYSTEM TIMING STA SERIES AC CONTROLS D 4 990 351 Spot Welding...
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