ACT4 Electrofusion Welding Unit – Operator Manual – Rev: 4.1.G
© 2008. Advance Welding.
Page 20
21: High output volts (+1.25%)
This fault will happen if the output voltage is 1.25% higher than the set point
for more than 3 seconds. It will normally be caused by a poor quality
generator with the supply voltage fluctuating. Try a different generator.
22: Excess output volts (+6.25%)
This fault will happen if the welding voltage is 6.25% more than the set point
for more than 2 seconds. This fault is normally caused by a fault within the
unit, a short circuit triac. The unit must be returned for service.
23: Low output current (<2.5A)
This fault will happen if the welding current is below 2.5 amps for more than 3
seconds. It can be caused by a faulty fitting. Try another fitting. If this doesn’t
clear the fault then there is a problem inside the unit and it must be returned
for repair.
24: Shorted turn detected in fitting.
While welding, the unit has detected a sharp increase in welding current. This
is normally caused by a shorted turn happening in the fitting. (An increase OF
10%). If this happens then it is most likely a faulty fitting. This must be
replaced. If the fault persists then it could be a fault within the unit.
25: User stop button pressed
The operator has pressed the stop button.
26: Relay unlatched
During welding, if the main power relay disconnects then this fault will be
shown. It could be caused by the unit being knocked or a temporary dip in the
power supply. If the fault persists then the unit should be returned for repair.
27: Fitting open circuit
This fault is shown if the output lead disconnects from the fitting while
welding. Follow the guidelines from the fitting manufacturer, reconnect the
lead and try welding again.
50: USB Memory: Disc full.
This fault will happen if the USB flash memory pen is full. Delete some files
from the device.
51: USB Memory: File allocation table full.
This will happen if the USB flash memory pen’s file structure becomes
fragmented. Follow the instructions with Windows to defragment the memory
pen.
52: USB Memory: File not found.
When performing a software upgrade, the required file was not found on the
memory drive. Reload the upgrade files onto the memory drive.
