CPV Act1, Руководство пользователя

Страница: 14 / 27

Act1 Electrofusion Welder
06/06/2011
www.ProcessPipes.co.uk Pg 14
8: Ambient temperature more than +600
o
C.
The unit has detected that the ambient temperature sensor has broken or a wire has gone open
circuit. The unit must be returned to a service agent for repair.
10: Low supply frequency <40Hz
The unit has detected that the supply frequency is below 40 Hz. This will normally be caused by a
poor quality generator. If this fault happens then check the supply or change the generator.
11: High supply frequency >70Hz
The unit has detected that the supply frequency is above 70 Hz. This will normally be caused by a
poor quality generator. If this fault happens then check the supply or change the generator.
12: High supply voltage >140v (or 280v with a 220v supply)
The unit has detected that the supply voltage is more than 140 volts (280 volts with a nominal
220v supply). Check the supply voltage and if necessary use a different generator.
13: Low supply voltage <95v (or 190v with a 220v supply)
This fault can be caused by a few problems. It could be that the generator is running slowly and so
the supply voltage is low. Try speeding the generator up or use a different generator.
It could also be caused by a generator that is too small. If a large fitting is welded, then a large
amount of power will be needed from the generator. If it can not supply this power then it will
stall and the voltage will drop away. Check that the generator is the correct size, if needs be try
another generator.
It could be caused by the use of long extension leads. If a large fitting is welded then a high current
will be taken from the supply. If extension leads are used, there will be a volts drop down the lead
making the unit sense a low supply voltage. Try not to use extension leads with the unit. If you
have to then use just 10 meters of 4.0mm
2
cable, the same size fitted to the unit.
14: Relay failed to latch on weld start
This fault could happen when the start button is pressed. If the main power relays do not operate
correctly then this fault will be shown. The unit needs to be returned for service.
20: Low output volts (-1.25%)
This fault will happen if the output voltage is 1.25% lower than the set point for more than 3
seconds. This can be caused by a generator that is not big enough to supply the required power to
the fitting. Check the size of the generator and if needs be try another generator. It can also be
caused by using long extension leads with the unit. It is recommended that only 10 meters of
extension are used, and the cable should be the same thickness as the input lead on the unit
(4.0mm
2
).