Unitec Peco HF25A, Руководство пользователя

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CHAPTER 2: INSTALLATION AND SETUP
HF25D DC RESISTANCE WELDING SYSTEM
2-8 990-333
5. Refer to the weld head manufacturer user’s manual. Connect the weld head air valve solenoid
cable connector to the Control
AIR VALVE DRIVER
connector.
NOTE: This connector supplies 24 VAC power only, and will not drive 115 VAC air valves.
6. Connect a properly filtered air line to the air inlet fitting on the weld head. Use 0.25 inch O.D.
by 0.17 inch I.D. plastic hose with a rated burst pressure of 250 psi. Limit the length of the air
line to less than 40 in. (1 m) or electrode motion will be very slow.
NOTE:
Use a lubricator only with automated installations.
7. Turn on the air system and check for leaks.
8. Set the
WELD/NO WELD
switch on the Control front panel to the
NO WELD
position. In this
position, the Control cannot deliver weld energy, but it can control the weld head.
9. Set the circuit breaker on the rear panel
of the Control to the ON position. The
default
RUN
screen will be displayed.
See Chapter 3, Using Weld Functions
and Chapter 4, Operating Instructions.
10. Turn the air regulator clockwise to produce 10 psi on the air regulator pressure gauge.
11. Press the foot switch all the way down to close both levels, and hold the foot switch down.
When the weld head upper electrode rises to the UP position, release the foot switch. Proceed
to Step 13. If it does not rise to the UP position, proceed to Step 12.
12. Increase air pressure in 5 psi increments and repeat Step 11 until the upper electrode rises to the
UP position.
13. Press the foot switch to actuate the first level. The weld head upper electrode should descend
smoothly to the DOWN position. When it reaches the down position, release the foot switch
and proceed to Step 15. If it does not descend smoothly, proceed to Step 14.
14. Adjust the weld head down speed control knob and repeat Step 13 until the upper electrode
descends smoothly.
15. Press the foot switch to actuate the first level and set the upper electrode to the DOWN
position. Release the foot switch and verify that upper electrode holder does not impact the UP
home position.
16. Repeat Step 15, adjusting the weld head up speed control knob until the upper electrode holder
does
not impact at the UP home position.