Dukane 6000 Series User Manual page 100

Linear Vibration Welder 6000 Series
ALARMS
No Feedback Detected
No or Low Air Pressure
Over Voltage
Over Temperature or IGBT
Table 6- V I
Alarms and Messages (Page 4 of 6)
Page 94
User's Manual
MESSAGE
The PLC did not detect any amplitude feedback.
Solutions:
Increase the feedback delay to 3 seconds.
Check your weld force; it could be set too high for the application. For example,
4000 lbs of weld force could restrict horizontal displacement, essentially stalling
the machine.
Check the tool for proper alignment. If misaligned, the weld bead will not have
adequate space to move freely causing a stall condition.
Check that tool stanchions are in the retract position.
Auto-tune the system
Verify that all 12 mm bolts attaching the tool to the machine are installed and
torqued to [100 foot pounds].
Check that all bolts on the tool are tightened to the manufacturer's
specification.
Check the tool weight and make sure it's within range for the machine.
VW6300: between 20 - 55 lbs
VW6700: between 90 - 150 lbs
VW6900: between 110 - 200 lb
VW LPT 6960: between 60 - 180 lbs
Not enough pressure to close pressure switch. Clear all E-STOPs, press E-STOP
RESET, press Clear Alarm, and then check air pressure.
Solutions:
Is the air line connected to the machine? Reference pneumatic schematic [#18].
Is the main air valve that supplies air to the machine, on?
Is the "lockout dump valve" open. Reference [#13] on schematic.
Clear all "E-STOP" buttons and press the "E-STOP RESET" button. Any time you
E-Stop the machine, power is removed from the "start up dump valve". Reference
[#7] on schematic.
Check pressure switch setting. Default set point is 70 psi. If pressure drops below
the set point, the welder will alarm. Reference [#21] on schematic.
Drive line voltage greater than 504 Vac (480 Vac +5%) was detected.
Solutions:
Check incoming voltage to the main disconnect.
Drive heatsink temperature greater than 70 Degrees C or fault detected at the driver
modules for the IGBT's.
Solutions:
Wait 10 minutes for the machine to cool off.
Confirm that the cooling fan is working properly.
s
Dukane Manual Part No. 403-619-00
Continued