Amada UB25 - Section IV. Programming the Weld Monitor

CHAPTER 4: OPERATING INSTRUCTIONS
UB25 LINEAR DC RESISTANCE WELDING CONTROL
990-665 4-7
Section IV. Programming the Weld Monitor
1
Press the SCHEDULE button, then select a Weld Schedule using either the ▲▼
arrows or
the numeric keypad. Fire the welder and view the output waveform (shaded
graph) on the display.
2
Press the ENERGY key to access the MONITOR screen.
3
Pe
rform a weld and view the trace of the weld parameter, use the
or
key to view the desired waveform.
4
Toggle the Pulse 1 weld time/energy selector key to select the upper limit field for the
weld period. Use the numeric keypad or the ▲▼ arrows to enter the upper limit
value
for the Pulse 1 weld period. The Power Supply can monitor:
Current from 0
→
1.2 kiloamps.
Voltage from 0
→
6.5 volts.
Power from 0
→
8.0 kilowatts.
5
Perform one of the following to program the Pulse 1 monitor limit mode:
•
Press the kA key to program current as the limit mode.
•
Press the V key to program voltage as the limit mode.
•
Press the kW key to program power as the limit mode.
6
Toggle the Pulse 1 weld time/energy selector key to select the lower limit field for the
weld period. Enter the lower limit value for the Pulse 1 weld period.
NOTE: In order for a Pulse 1 lower limit to be programmed, you must first
program a
Pulse 1 upslope in the weld schedule.
The lower limit mode (current, voltage, or power) will automatically be the same as the
upper limit mode programmed in Step 5.
7
Press the COOL weld period key.
This will bring up the PULSE 1
OUT OF LIMITS ACTION screen.
This screen allows you to select the
action that the Power Supply will
take if the Pulse 1 upper or lower
limits are exceeded. You have four
choices:
•
NONE takes no action if upper or lower energy limits are exceeded.
PULSE 1 OUT OF LIMITS ACTION
1. none
2. STOP DURING PULSE 1
3. INHIBIT PULSE 2
4. APC: STOP PULSE 1/ALLOW PULSE 2
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