SCOTTY AI 3.0 TUNING GUIDE
Please note a current limit set up can be varied depend on +LS voltage, however, do not set it up for Scotty work at higher than its rated power, 1.5kW for 1500 Scotty and 3kW for 3000 Scotty. For charging from +LS to +HS, maximum current for Scotty +HS is 30A for Scotty 1500 and 60A for Scotty 3000. For 12V-24V Scotty used, please bare in mind the maximum +HS current while calculating a alternator current limit (+LS). For example: Scotty 1.5kW: 12-24V +HS voltage at 26V + LS voltage at 12.8V +LS current limit can be calculated: 26(V)*40(A)/12.8(V) = 81.25(A) Note there is a power limit of either 125A on 12V side OR 1500W which ever is the reat for Scotty 1500. Some larger alternators can produce 125A at 13.5V = 1,688W. This exceeds the power limit. In these cases reduce the max current to 110A. Likewise the Scotty 3000 has a limit of 250A on the 12V side, 125A on the 24V Side when it is the low side and an overall power limit of 3000W. When the low side alternator power is big the charge voltage will increase and you will need to reduce the maximum current.
Please note while Scotty is running, +LS and +HS are varied.
i) Smart Alternator Trigger Voltage
Recommend seting for this parameter is 12.3V and 24.9V for 12V and 24V +LS Scotty, respectively.
However, keep this set up 0.3V lower than a Camping SetPoint. So if a camping voltage os 12.6 is used, dont set the trigger voltage above 12.3V
Keep feature in disable if you do not control a Scotty through a “Stop Charge” wire j) Feature in
If Feature In wire is connected to control Scotty working Enable need to be selected if you want Scotty to charge the high side battery by a positive control (+12V or +24V only) on the feature in wire; Enable Inverted need to be selected if you want Scotty to charge the high side battery by a negative control (GND) signal.
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