R5/4000 CV
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SECTION 4 — OPERATION
4.1 Description of controls
1. Output Demand Control - Adjusts the machines output Voltage.
2. Digital Display - Indicates welding current in Amps, welding voltage in Volts. The display also gives an indication when the machine is over tempera-
ture (-OT -) , or the optional cooling unit is turned off (-CU-).
3. Inductance control - This control alters the response time of the power source and is generally used in short circuit dip transfer welding. Too little in-
ductance will result in excessive spatter and too much inductance will not allow the welding current to rise fast enough causing the electrode to stub
into the base metal.
4. Slope control - This control alters the output voltage(V) to output current(I) relationship. This control is sometimes know as ‘Arc Control’ or ‘Arc Pinch
Control’ as it regulates the pinch effect of the welding arc.
5. +ve weld terminal - Main welding power output connector, positive polarity.
6. -ve weld terminal - Main welding power output connector, negative polarity.
7. Standby switch - Switches the machine on and off when the main 3 Phase isolation switched is in the on position. Upon switching on, the display will
read “4000” or “5000” and the machines output will be inhibited. After 4 seconds the display will clear and the machine is ready to use.
8. Remote control socket - For connection of external remote control or wire feed unit. There is no switch for remote operation, plugging an external unit
into the socket automatically selects remote operation and disables the internal voltage control.
9. Main 3P Isolation switch - Switches the machine on and off.
10. Mains Input - Three phase mains cable
11. Auxiliary transformer supply fuse - Fuse 3.15A slow blow, 32 x 6.3mm ceramic body.
12. Remote supply fuse - Protects the auxiliary supply from the remote control socket. Fuse type is 20 x 5mm glass body, 6.3A ‘slow blow’ rating
13. Main supply fuse to the cooling unit (Only fitted to cooling unit version) - Fuse 3.15A slow blow, 32 x 6.3mm ceramic body.
14. Auxiliary Cooling unit supply fuse (only fitted to cooling unit version) - protects the auxiliary supply to the cooling unit. Fuse type is 20 x 5mm glass
body, 2A ‘slow blow’ rating.
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