Instruction manual for use and maintenance - EN
Rev.: 0
–
aggiornato al 06/11/2020
| Con riserva di modifiche tecniche e salvo errori |
Pag.
15
di
39
6.4.
Electric connection
Before switching on the OTS unit it is necessary to check the correct electric connection of the filtering
unit and ensure an adequate protection.
A thermal protection device is necessary to protect the fan motor from any current peak and short
circuit.
It is necessary to install a differential switch suitable for inverters.
OTS unit is equipped with an inverter complete with EMC filter which could interfere with
unsuitable differential switches!
6.5.
Start of the unit
To start the unit proceed as follows:
•
Connect the unit to the mains supply, making sure to carefully respect the data on the rating
plate;
•
Connect the unit to the compressed air line making sure it is clean, dry and free from oil. The
incoming air pressure shall be 6 Bar steadily;
•
Turn the yellow-red main switch to power the unit;
•
Wait for the digital panel turning on;
•
Press the ON key on the pc board for 3 secs;
•
The extractor fan starts running and consequently the unit is opearating.
6.6.
Automatic Start-Stop
The unit is standard provided with an automatic START-STOP electronic device which automatically
starts and stops the extraction according to the actual operation of the welding unit.
[picture 1: layout of the control panel]
The unit with automatic start and stop function has a special clamp on the side of the unit and also
specific indications in the display.
After having turned on the main switch of the unit, the pcb will turn on giving the following information:
•
Software version installed
•
Name and p/n of the unit
•
Then the following information will be shown in the display: START-STOP ACTIVATED.
•
The extraction LED
will be flashing.
In this mode the unit is ready to work and it is sufficient to start welding to activate the fume extraction.
The unit is already sed to stop extracting after 1 minute from the last welding cycle.
WARNING
