Dukane 5000 Series User Manual page 102

Linear Vibration Welder 5000 Series
ALARMS
No Feedback Detected
No Hydraulic Pressure
No or Low Air Pressure
Over Voltage
Table 6- VI Alarms and Messages (Page 4 of 6)
Page 96
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 12mm 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.
VW3300\4300\5300: between 20 - 55 lbs
VW3500\4500\5500: between 35 - 90 lbs
VW3700\4700\5700: between 90 - 150 lbs
VW3900\4900\5900: between 110 - 200 lbs
VW LPT 5700\5900\5960: between 60 - 180 lbs
Hydraulic pump is on but no pressure is detected.
Solutions:
The pump may be rotating backward, check your power.
Check if pressure transducer is providing a signal to analog input card.
Reference the schematics.
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 70psi. If pressure drops below
the set point, the welder will alarm. Reference [#21] on schematic.
Drive line voltage greater than 504Vac (480Vac +5%) was detected.
Solutions:
Check incoming voltage to the main disconnect.
Dukane Manual Part No. 403-589-01
Continued