Errore Simulazione con Proteus ISIS

Che cosa significa di preciso l'errore che mi da il simulatore ? Dove dovrei interbvenire per correggere la situazione? Il circuito in reale funziona (montatoe provato) ma il simulatore continua a darmi questo maledetto errore( Warning: [SPICE] Source step [0] failed: source factor = 0 [SPICE] Error 103 - Too many iterations without convergence.)

...Dove sbaglio ????

Grazie.

SIMULATION LOG ==============

Compiling source files... Build completed OK. Compiling netlist... Linking netlist... Partition analysis...

Simulating partition 1 [686A24DB]... PROSPICE Release 6.9 SP5 (C) Labcenter Electronics 1993-2006. SPICE Kernel Version 3f5. (C) Berkeley University ERL.

Reading netlist... Reading SPICE models... Loaded SPICE model 'IRLR120' from library 'IRPOWER' Building circuit... Instantiating SPICE models... [SPICE] Starting Gmin stepping: 10 steps Warning: [SPICE] Gmin step [0] failed: GMIN=1 Warning: [SPICE] Gmin stepping failed [SPICE] starting source stepping Warning: [SPICE] Source step [0] failed: source factor = 0 [SPICE] Error 103 - Too many iterations without convergence. Real Time Simulation failed to start Totaliters=0, Totalsteps=0, Goodsteps=0, Badsteps=0

Real Time Simulation FAILED.

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Vladi
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