Miyachi Unitek ISA Series, Operator'S Manual

Page: 122 / 122

APPENDIX I: FORCE CONTROL OPTION
ISA-4001CR INVERTER POWER SUPPLY
I-4 990-362
4. First, calibrate the
LOW
force setting.
Highlight
LOW: 00000 UP
on the screen.
5. Place a force gauge between the
electrodes.
6. Press the on the Program Unit to
change from
LOW UP
to
LOW DOWN
.
7. To lower the weld head, press
ENTER
.
NOTE: In
CALIBRATION
mode, the
Power Supply will
not
send weld
current to the electrodes.
8. Let the force stabilize, then check the
force on the force gauge. Write down
the number of the force units.
9. To raise the weld head, press the + on Program Unit to change from
LOW…DOWN
to
LOW...UP
,
then press
ENTER
.
10. Move the cursor on the LCD to highlight
LOW: 00000.
11. Use the + or keys to increase or decrease the
FORCE UNITS
until the number on the LCD
matches the number measured by the Force Gauge.
12. Press
ENTER
to save this setting.
13. Finally, calibrate the
HIGH
force setting by repeating Steps 4
£
12
.
NOTE:
When the
LOW
and
HIGH
numbers on the LCD match the Force Gauge readings,
Calibration is complete.