Pro 3200 Evolution, Pro 4200 Evolution, Pro 5200 Evolution/0109 – 9© COPYRIGHT KEMPPI OY0 =9-90tI23.2. PILOT LAMPSThe pilot lamps of the machine report the electric operation:The green pilot lamp H11 when illuminated indicates that the machine is on and ready foruse and it is connected to the mains supply with the main switch in the I-position.H12 indicates when illuminated that the thermal protection of the machine has beenactivated due to over heating. the cooloing fan will continue to run and cool the machinedownn and when the lamp is off the machine ia ready to weld.3.3. LOCAL OR REMOTE CONTROL OF WELDING CURRENTYou can control welding current either from local controls of PX or PL control panel, or fromremote control unit which is connected to remote control connector X14 or X15, or from Promigor Protig unit.Selector switch of control panel has to be in a position corresponding to control mode: localcontrol / MIG/TIG / remote control unit.Suitable remote control units R10 and R20, see page 5.At MIG and TIG welding, current control is made according to operation instruction ofcontrolling MIG or TIG unit.3.4. OPERATION OF COOLING FANIn Pro 3200 there are one and in Pro 4200 and 5200 two simultaneously operating fans.- The fan is started for a moment when main switch is placed into postion I.- The fan will start during welding as the machine heats up and it will run for 1 to 10 minutesafter the welding has stopped.- On no-load fan is started in intervals of approx. half an hour for minute’s time.Soft arc. Object to reduce amount of spatter in welding at the upper end of recommen-ded currents for electrode.Factory setup (PX). Normal setting for all electrode types.Rough arc. Object e.g. cellulose covered electrodes and thin stainless electrode inwelding at the lower end of the recommended curents for electrode.RougheningFactory set upSoftening4. ACCESSORIES4.1. PL AND PX CONTROL PANELS’ OPERATION INMMA WELDING4.1.1. Control for MMA welding dynamics (PL, PX)With control for electrode dynamics you can influence arc behaviour in different kinds ofoperation situations.When arc is roughened, blowing is increasing and at the same time also spatter.