Total amount of time the unit was welding. Display unit : 1 hour. The display follows 3 steps: 3 digits of heavy weights for 2s, 3 digits
of light weights for 2s and no information for 2s.
Fc5
Total number of ocassions where the thermal protection kicked in. Display unit: 1 occasion. The display follows 3 steps: 3 digits of
heavy weights for 2s, 3 digits of light weights for 2s and no information for 2s.
Fc6
Total number of occasions where the overvoltage protection kicked in. Display unit: 1 occasion. The display follows 3 steps: 3 digits
of heavy weights for 2s, 3 digits of light weights for 2s and no information for 2s.
Precisions regarding functions SW5 to SW8:
Verication of the voltage, current and wire speed measurements should be carried out yearly. If the values are found to be incorrect, it is possible to
adjust the displayed values by +/- 20%. To do this, it is necessary to have access to:
- a power source able to supply 425A, with a minimum no-load voltage of 70V.
- a resisted load that will allow the generator to supply current
- calibrated measuring devices: dc voltmeter, dc metric ammeter clamp, dynamometer to measure the speed at the surface of the feed rolls.
Connect the generator to the case and to the resisted load out of the case. Place the voltmeter between the end of the torch and the cases’s earth
clamp. Place the metric ammeter clamp around the welding torch. Measure the wire speed on one of the drive rolls, by lifting the pressure rolls or
using a dynamometer able to measure the speed directly on the surface of the wire.
Select the function SW5 to SW8 required (one at the time) and switch the unit on. Adjust the value displayed on the machine using push-buttons 10
and 11, on several points covering the range of the unit. Button 11 is used to decrease the displayed value and button 10 to increase it.
The selected values are automatically displayed and saved.
Error messages (only on Nomadfeed 425-4) :
ErrorMeaning
Err 001Torch trigger pushed in when switching the unit on.
Err 002Wire feed button or gas purge button pushed in when switching the unit on.
Err 0032 functions (SW4 to 8) simultaneously activated
To verify or calibrate the Nomadfeed, GYS offer a specic solution called CALIWELD:
Calibration case :
• GCU 1.0 (ref. 060456)
Calibration charges :
• Load 320A-100% (ref. 060418)
• Load 550A-3% (ref. 060425)
Extension cables :
• 1m30, 95 mm² : (ref. 033689)
• 5m, 95 mm² : (ref. 032439)
• 10m, 95 mm² : (ref. 032446)
Find out about our complete CALIWELD range on our website www.gys.fr.
MACHINE CONTROL AND MAINTENANCE DETAILS
Machine maintenance or alteration should only be carried out by a qualied person. Failure to comply may void the warranty. Any work must be carried
out when the machine is switched off and not connected to the mains. Wait 5 minutes after the machine is disconnected. Seal off the working area
if necessary.
Daily:
- Check the torch, the rollers and the connections.
Twice a year :
- Clean the inside of the machine with a compressed air cleaner.
- Be careful not to introduce conductor parts in the machine such as the torch.
- Check the condition and tightening of connectors, tighten up if necessary.
- Check the following parts: electrical, gas, wire reel support, wire-feeding motor and bottle support.
- Check and adjust if required the displayed measurements (only on Nomadfeed 425-4).
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