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Kodak king mppt issue


Charlesk
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19 hours ago, Coulomb said:

Is the PV icon on the LC Display on?

What is the PV voltage on the LC Display?

Hi, 

No the pv icon is not on and the pv voltage is 0.

The pannels have been on my previous inverter and was working fine. 

4 sets of 3 pannels 320w pannels

Each set is 120 v

 

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6 hours ago, Plaashaas said:

What panels are you using and how is it connected? Fuses? DC breakers? Did it work before or is the a new install? 

Hi, 

320 w panels 4 sets of 3. Fused and with dc breaker, yes they worked before in just swaped the inverter out this weekend my previous one was just an inverter charger. 

 

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1 hour ago, Charlesk said:

Hi, 

320 w panels 4 sets of 3. Fused and with dc breaker, yes they worked before in just swaped the inverter out this weekend my previous one was just an inverter charger. 

ok, 120volt at 320 watts = 30 volts per panel?. 

if you take a multi-meter see what is the voltage on the + and - of the pv cable by the inverter>?

 

Edited by Barryv
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15 minutes ago, Barryv said:

ok, 120volt at 320 watts = 30 volts per panel?. 

if you take a multi-meter see what is the voltage on the + and - of the pv cable by the inverter>?

 

Sorry, i did not set it out clearly. 4 strings of 3 pannels each, so 120 v at +- 36bamp

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1 hour ago, Charlesk said:

320 w panels 4 sets of 3.

I groan every time I read this. 120 V is quite high, and it will get even higher in colder months.

Kings may be more sensitive than other models with respect to high PV voltage. I can't think of a good reason why; the SCC should be identical to those of an Axpert MKS model.

It might be worth isolating to just one string, and rewire to 2S for that single string, to see if it suddenly recognises the panels. Or perhaps see if the PV is recognised early in the morning or late at night, when the panel voltage is under 115 V (the maximum MPPT voltage).

I assume you're seeing the 120 V on a multimeter right at the PV input terminals.

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5 hours ago, Coulomb said:

I groan every time I read this. 120 V is quite high, and it will get even higher in colder months.

Kings may be more sensitive than other models with respect to high PV voltage. I can't think of a good reason why; the SCC should be identical to those of an Axpert MKS model.

It might be worth isolating to just one string, and rewire to 2S for that single string, to see if it suddenly recognises the panels. Or perhaps see if the PV is recognised early in the morning or late at night, when the panel voltage is under 115 V (the maximum MPPT voltage).

I assume you're seeing the 120 V on a multimeter right at the PV input terminals.

Correct 

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