drafts:mppt_faq
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| drafts:mppt_faq [2018-09-22 11:12] – john_r | drafts:mppt_faq [2021-09-30 07:18] (current) – guystewart | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| ====== MPPT FAQ ====== | ====== MPPT FAQ ====== | ||
| - | See also [[victronconnect: | ||
| ==== Q1: I want to size or oversize my PV array, how can I do this? ==== | ==== Q1: I want to size or oversize my PV array, how can I do this? ==== | ||
| Line 9: | Line 8: | ||
| By default the RX pin is already used to control the battery life on/off selection with the jumper. Use VictronConnect to change the function of the RX pin to remote on/off to enable BMS control. See | By default the RX pin is already used to control the battery life on/off selection with the jumper. Use VictronConnect to change the function of the RX pin to remote on/off to enable BMS control. See | ||
| - | [[https:// | + | [[https:// |
| ==== Q3: My MPPT is only showing voltage readings, not currents and also no Watts? ==== | ==== Q3: My MPPT is only showing voltage readings, not currents and also no Watts? ==== | ||
| Line 32: | Line 31: | ||
| 1. Check that the PV voltage is high enough compared to the battery voltage. Either read it with a remote panel or VictronConnect. | 1. Check that the PV voltage is high enough compared to the battery voltage. Either read it with a remote panel or VictronConnect. | ||
| - | Or measure the voltage with a Volt meter. Make sure to measure the voltage on the terminals on the charger. Not elsewhere, to rule out any faulty wires or fuses. The panel voltage needs to be at least 5V above the battery voltage for the charger to start power conversion; see the manual for more information. | + | Or measure the voltage with a Volt meter. Make sure to measure the voltage on the terminals on the charger. Not elsewhere, to rule out any faulty wires or fuses. The panel voltage needs to be at least 5V above the battery voltage for the charger to start power conversion; |
| 2. For models with a Remote on/off switch (a green two pole connector, labelled Remote L H), check that the jumper is in. L and H need to be shorted for the unit to switch on. Only the large models have this connector, see datasheet for details. | 2. For models with a Remote on/off switch (a green two pole connector, labelled Remote L H), check that the jumper is in. L and H need to be shorted for the unit to switch on. Only the large models have this connector, see datasheet for details. | ||
| Line 41: | Line 40: | ||
| If all above is fine, and still the unit does not operate, contact a dealer to have the unit tested. | If all above is fine, and still the unit does not operate, contact a dealer to have the unit tested. | ||
| - | |||
| ==== Q7: Can I use the MPPT Solar Charger as DC-DC charger? ==== | ==== Q7: Can I use the MPPT Solar Charger as DC-DC charger? ==== | ||
| For example to charge a 12 Volt battery from a 24V battery bank? | For example to charge a 12 Volt battery from a 24V battery bank? | ||
| - | Yes. | + | No. |
| ==== Q8: Can I connect different panels to the same charge controller? ==== | ==== Q8: Can I connect different panels to the same charge controller? ==== | ||
| Line 52: | Line 50: | ||
| No. Under no circumstances. | No. Under no circumstances. | ||
| - | ===== DISQUS Comments ===== | + | ==== Q9: Can I use panels with optimisers? |
| + | No. | ||
| + | ===== DISQUS ===== | ||
| ~~DISQUS~~ | ~~DISQUS~~ | ||
drafts/mppt_faq.1537607558.txt.gz · Last modified: 2018-09-22 11:12 by john_r