CHAPTER 5: SETUP SOFTWARE
UB25 LINEAR DC RESISTANCE WELDING CONTROL
990-665
5-9
Switch Debounce Time
The contacts of mechanical firing switches "bounce" when they close. The switch debounce time function
allows you to specify that the initiation switch contacts must remain closed for 10, 20, or 30 milliseconds
before the weld period can be initiated, thereby avoiding false starts caused by the switch contact
bouncing. In addition to the debounce time, there is a delay of no greater than 2.5 ms before the start
signal is recognized by the Power Supply.
NOTE:
The factory default debounce time is 10 milliseconds (ms).
1
Go to the
SETUP 1
screen.
2
Press the
2
key to access the
SWITCH
DE-BOUNCE TIME
menu.
3
Select the required debounce time by pressing the
1
,
2
,
3
, or
4
key. The LCD will automatically
return to the
SETUP 1
screen and the
SWITCH DEBOUNCE TIME
line will now reflect your
time selection.
NOTE:
NONE
represents a debounce time of
0
msec. Use
NONE
for interfacing with the
AMADA WELD TECH SL-320A Electronic Weld Force Control.
4
Press
MENU
to return to the
MAIN MENU.
Firing Switch
1
Go to the
SETUP 1
screen.
2
Press the
3
key to get the
FIRING
SWITCH
menu.
3
Press the
1, 2,
or
3
key to select switch
type. The LCD will automatically return
to the
SETUP 1
menu with your
selection highlighted.
NOTE:
•
AUTO
accepts a single pole, double pole, or optical firing switch input, typically from an
AMADA WELD TECH weld head. Firing switch activation indicates that the weld head
has reached the set weld force and is ready for the weld energy sequence (including squeeze
time) to start.
•
NONE
is used when welding with a non force-fired weld head. With
NONE
selected, a
footswitch closure activates the 24 VAC Air Valve Driver and initiates the weld energy
sequence (including squeeze time). Sufficient squeeze time must be programmed in the
SWITCH DEBOUNCE TIME
1. NONE
2. 10ms
3. 20ms
4. 30ms
NUMBER Select MENU Previous menu
FIRING SWITCH
1. AUTO
2. NONE
3. REMOTE
NUMBER Select, MENU Previous menu
