June 21, 20224 yr hi all i faced problem that caused sometimes and give f57 fault with no clear reason, what are the possibilities? what is the main purpose of the op07cp circuit? and what is mean f57 error? thank you in advance
June 21, 20224 yr 30 minutes ago, alitronix said: what is the main purpose of the op07cp circuit? and what is mean f57 error? In some models (I don't know which ones), the large resistors may be shunts and the op-amp measures the neutral current. So this whole circuit replaces the LEM hall-effect current sensor with integrated op-amp. Fault code 57 is "current sensor failed". So there is presumably some fault in this area of the circuit. Though those large SMD parts seem to be marked "100", which doesn't make sense for shunt resistors. It also doesn't look like full load current flows through them, though it's hard to tell. So I might be off with my assumptions. They might even be 10 μH inductors. Small discussion about the OP07 here.
March 26, 20251 yr I have a 6.2kw Kodak inverter that I have send to the suppliers to repair but after a wille thy did not fix it a so thy send it back not repaired . I then ordered a new main board and put it in but know it give a F57 fault can it be that I have plug someting in wrong
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