Amada Miyachi Unitek STA-100A, Operation Manual, Page: 53 / 154

CHAPTER 4: OPERATING INSTRUCTIONS
STA SERIES AC CONTROLS
990-351 4-5
SCHEDULE 01 W1 AND W2 TIMES ARE SET TO
ZERO
PRESS PROGRAM/SAVE KEY TO ACCEPT, THEN
DESIRED SCREEN BUTTON AFTER SAVING.
OR PRESS SCHEDULE KEY TO VIEW OR CHANGE
THESE TIMES
MODIFIED SCHEDULE NOT SAVED.
PRESSING THE PROGRAM/SAVE KEY SAVES
MODIFICATIONS, THEN PRESS DESIRED
SCREEN BUTTON AFTER SAVING.
OR PRESS PLUS OR MINUS KEY TO LOSE
MODIFICATIONS
SCHEDULE 01 WELD 2 CURRENT GREATER THAN
SYSTEM FULL CURRENT.
ENTER THE SYSTEM VALUES SCREEN AND CHECK
FULL CURR. WELD 2 CURRENT MUST BE
LESS THAN THIS. ADJUST W2 ON THE
SCHEDULE SCREEN ACCORDINGLY.
SCHEDULE 01 WELD 2 CURR. PLUS STEP CURR.
GREATER THAN SYSTEM FULL CURRENT
ENTER THE SYSTEM VALUES SCREEN AND CHECK
FULL CURR. WELD 2 STEP CURRENT MUST BE LESS
THAN THIS.
STEP CURRENT IS THE PRESENT STEP NUM’S
HEAT % TIMES WELD 2 CURRENT.
SCHEDULE 01
BAD SCR NUMBER IN SCHEDULE TO BE
WELDED.
SELECT CORRECT SCR NUMBER ON SCHEDULE
SCREEN AND PRESS RESET TO CONTINUE.
Programmed value for FORCE fails a
validity
check.
The FORCE value on the SCHEDULE screen
Must be greater than the FORCE LO and
less than the FORCE HI values on the
MONITOR screen. Also, FORCE must be
equal to or greater than the MONITOR
screen FORCE FIRING value .