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Ohh my lord, I don't know what happened suddenly. I don't have a PP_bus anymore. Mag safe light is not glowing. U7100 vdd (PP5V1_CHGR_VDD) is present. I/P also present (PPDCIN_G3H_CHGR - 19.7V). SMC_RESET_L is 0V. No idea why. Have I spoiled it ??
"What is the max current setting?"
The MAX of your PSU; we discussed so many times on the forum about that.
The current is auto adjusted, depending by injected voltage and short resistance.
Please, try to understand Ohm law!
BTW, 5A doesn't help for short check many times.
If the short sinks more than 5A (sometime occurs even with 1V), PSU will get blocked.