Amada HF-2500A - Page 74

CHAPTER 5. OPERATING INSTRUCTIONS
HF-2500A HIGH FREQUENCY WELD CONTROL
5-10 990-371
1.
Press the
SCHEDULE
key, 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.
From the
MONITOR keys section on the front panel, press the
,
,
, or
key to view the desired waveform. Note that the other monitor keys do not have graphical
waveforms.
3.
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.
4.
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.
•
Press the Ώ key to program resistance as the limit mode.
5.
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 4.
6.
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:
PULSE 1 OUT OF LIMITS ACTION
1. none
2. STOP WELD
3. INHIBIT PULSE 2
4. PART CONDITIONER (Stop Pulse1)
NUMBER Select, Page, RUN or MENU
• NONE takes no action if upper or lower energy limits are exceeded.
•
STOP WELD
stops the weld immediately during Pulse 1, and prevents Pulse 2 from
firing (if applicable).
•
INHIBIT PULSE 2
stops the weld at the end of Pulse 1, and prevents Pulse 2 from firing.
This function will not operate if both pulses are joined without a cool time.