CHAPTER 5: PROGRAMMING MODES
MODEL HF2 2 kHz HIGH FREQUENCY RESISTANCE WELDING POWER SUPPLY
990-057
5-3
ALARM State
The HF2 Weld Control automatically recognizes
many alarm conditions which are described in
detail under
Appendix C, Alarm Messages
. The
ALARM FIRING SWITCH screen shown on the
right is displayed when the Firing Switch of a
Unitek Peco Air Actuated Weld Head does not
close within 10 seconds.
FIRE State
Once weld current is flowing, the HF2 Weld
Control is in the Fire State. Weld current can be
terminated by: (a) removing the first level of a
single-level Foot Switch; (b) removing the
second level of a two-level Foot Switch; or (c)
shorting the Emergency Stop Control Signals
Input Pin 10 to Pin 11. Completion of the Firing
State is indicated by momentary appearance of
the END status message as shown in the example
to the right.
MENU State
Pressing [MENU] puts the HF2 Weld Control in
the MENU State, which offers you different
options common to all weld schedules such as
how the HF2 Weld Control interfaces with the
Firing Switch, Foot Switch, and Weld Head.
Like a tree with many branches, there are
multiple Menu levels. Each new level is
accessed by making an option selection, then
pressing [ENTER]. To return to a previous
Menu level, press [MENU]. For a complete
description on Menu Options, refer to
Chapter 7,
System Options.
