CHAPTER 7: SPECIAL FEATURES
2 KHZ INVERTER WEDLING POWER SUPPLY
990-057
7-7
SWITCH DEBOUNCE TIME (Figure 7-7)
Single Pole, Mechanical Firing Switches 'bounce' when they close. This feature allows you to specify that
the Firing Switch must remain closed for 0, 10, 20, or 30 milliseconds before the Weld Period can be
initiated. The Power Supply automatically sets the
SWITCH DEBOUNCE TIME
to 0.0 msec whenever a 3-
WIRE
or
OPTO
switch is selected. Press
CHNG
to select 0, 10, 20, or 30 msec.
OPTIONS 3 (Figure 7-8)
Press to select the
OPTIONS 3
screen.
AUTO GAIN ADJUSTMENT (Figure 7-8)
The Power Supply uses a special mathematical
function to control how fast and accurately weld
current, voltage, or power responds to electrical
resistance changes in the parts being welded.
When set to ON, the Power Supply automatically
Figure 7-8. OPTIONS 3
adjusts the individual constants in the function to produce the fastest and most accurate feedback response.
Press
CHNG
to select
ON
or
OFF
. For best welding results, use
ON
.
RS-485 BAUD RATE (Figure 7-8)
The
RS-485 SERIAL PORT
Connector, located on the back of the Power Supply, can send out welding data
to a serial data collection device such as a host computer or serial printer for SPC analysis. The baud rate
at which the data is sent must match the baud rate of the data collection device. Press
CHNG
to select
1200, 2400, 4800, 9600, 14.4K, 19.2K, or 28.8K.
RS-485 I.D. NUMBER (Figure 7-8)
A host computer can be used to talk with multiple Power Supplies using a single RS-485 communications
line. However, in order to avoid communications confusion, each Power Supply must be assigned a
unique Identification Number (I.D.). Use the numeric keys to enter an I.D. number ranging from 01 to
99.
RS-485 ROLE (Figure 7-8)
RS-485 Role specifies how the Power Supply communicates with a host computer. Press
CHNG
to select
HOST
which will automatically send weld data out the RS-485 Serial Port after each weld. When
CLIENT
is selected, The Power Supply will only send weld data when controlled by a Host Computer. For simple
weld data collection, see
RS-485 Connection
. For Host Computer control, refer to the Advanced RS-485
Communication, User's Manual, 990-058, for complete instructions on how to use the
CLIENT
option.
CLIENT
