User Tools

Site Tools


ess:design-installation-manual

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
ess:design-installation-manual [2019-04-03 13:27]
guy_stewart
ess:design-installation-manual [2019-04-05 12:21] (current)
guy_stewart
Line 896: Line 896:
  
 The same applies to other solutions where the wiring is not protected against accidental removing, for example a simple cable with end-user removable plug, such as a portable power supply. The same applies to other solutions where the wiring is not protected against accidental removing, for example a simple cable with end-user removable plug, such as a portable power supply.
 +
 +
 +
 +===== Troubleshooting =====
 +
 +- Start with checking firmware versions (needs to be latest). And when asking questions; report the exact firmware versions that are used.
 +
 +- Check battery type/brand. If lead then it might be unsuitable and probably broken because of the heavy cycling.
 +
 +- If some unknown or unsupported CANbus battery; change the battery to a supported type. 
 +
 +Then; if PV is not used enough to power loads;
 +
 +- Check for the # reason codes; see CODE KEY in this manual.
 +
 +- Check wiring: lots of voltage drop between MPPT and multi will prevent the system from effectively powering AC loads from solar power.
 +
 +- Test with and without SVS enabled.
 +
 +- Next, check MPPT charge current limit during the time that it is not used enough. MPPT CCL is supposed to be high always; even when battery full. Unless there is a temperature issue.
 +
 +- Now check MPPT Charge Voltage Setpoint. It is supposed to be above actual battery voltage.
 +
 +
 +Note that those last two setpoints are determined by software; and calculated based on the setpoints sent by the (CANbus connected) lithium battery: you can't change change them manually. Looking at them however does help understanding why certains things are happening;
 +
 +
 ===== DISQUS ===== ===== DISQUS =====
 ~~DISQUS~~ ~~DISQUS~~
ess/design-installation-manual.txt · Last modified: 2019-04-05 12:21 by guy_stewart