User Tools

Site Tools


multiplus_faq

Differences

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

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
multiplus_faq [2020-01-08 10:35] – [Still not connecting?] guy_stewartmultiplus_faq [2023-02-16 01:50] (current) guy_stewart
Line 52: Line 52:
  
  
-==== Software Changes ====+==== Software Settings ====
  
  
 The settings which you should attempt first are 'Disable UPS mode' and 'Enable Dynamic Current limiting'. These compromise features, but maintain the quality of the power supply.  The settings which you should attempt first are 'Disable UPS mode' and 'Enable Dynamic Current limiting'. These compromise features, but maintain the quality of the power supply. 
    
-If the generator will still not synchronise or disconnects, try turning on the setting for Weak AC. This will compromise efficiency. +If the generator will still not synchronise or disconnects, try turning on the setting for Weak AC. This will compromise efficiency, but allow for a wider variation in wave form distortion to be accepted
  
 Lastly, adjusting the settings for Voltage and Frequency windows. These are higher risk to your appliances, they should only be used cautiously when it is confirmed that the loads will tolerate the out of specification power supply. This should be done by a competent technician with the aid of a multimeter and only opened so far as to allow for safe functionality.  Lastly, adjusting the settings for Voltage and Frequency windows. These are higher risk to your appliances, they should only be used cautiously when it is confirmed that the loads will tolerate the out of specification power supply. This should be done by a competent technician with the aid of a multimeter and only opened so far as to allow for safe functionality. 
Line 109: Line 109:
  
  
-===== 1.5 Loss of mains detection (LOM) =====+===== 1.5 Loss of mains detection (LOM) (Only applicable to ESS systems) ===== 
 + 
 +This part is only applicable on systems where a grid-code is selected (generally only ESS systems) on an off-grid system a grid code should not be used and in the selection box for grid code, 'none' should be selected.
  
 Loss of mains detection will push and pull at voltage and frequency to see if there is still a generating source. This process can cause issues with some generators, or high impedance connections to generators.  Loss of mains detection will push and pull at voltage and frequency to see if there is still a generating source. This process can cause issues with some generators, or high impedance connections to generators. 
Line 181: Line 183:
 This leading or lagging power factor will have the effect of demanding more kVa from the generator for the same or less DC Watts delivered to the batteries. You may need to further reduce the DC Current Limit in the Charger tab of VEConfigure if the generator continues to overload after changing this setting. This leading or lagging power factor will have the effect of demanding more kVa from the generator for the same or less DC Watts delivered to the batteries. You may need to further reduce the DC Current Limit in the Charger tab of VEConfigure if the generator continues to overload after changing this setting.
  
-Effectively, the total charge current possible will be less that the rated maximum charge current output of the charger (under normal conditions) when weak AC is disabled.+Effectively, when Weak AC is enabled, the total charge current possible will be less that the rated maximum charge current output of the charger (under normal conditions).
  
  
Line 196: Line 198:
 If you have a small generator and have trouble getting connected or staying connected, Disable PowerAssist to allow the device to reduce the AC input current limit.  If you have a small generator and have trouble getting connected or staying connected, Disable PowerAssist to allow the device to reduce the AC input current limit. 
  
 +====== 5. Generator control in 3 phase and parallel systems ======
  
 +There is some specific and non-intuitive conditions when setting AC input current limits, and Charge Current limits for Large systems that involve more than one MultiPlus, and/or a GX device.
 +
 +Those specific details are articulated here:
 +https://www.victronenergy.com/live/ve.bus:manual_parallel_and_three_phase_systems#configuration
 +
 +Described in the online training theory here:
 +@ 38 minutes and 43 seconds - https://professional.victronenergy.com/online-training/20/
 +
 +Demonstrated in the 3 phase installation training here:
 +@ 25 minutes - https://professional.victronenergy.com/online-training/21/
  
 ====== Still not connecting? ====== ====== Still not connecting? ======
Line 241: Line 254:
 [[https://www.victronenergy.com/blog/2018/04/20/multiplus-quattro-inverter-chargers-improved-current-limits/|MultiPlus & Quattro Inverter/Chargers: Minimum AC Input Current Limits]] [[https://www.victronenergy.com/blog/2018/04/20/multiplus-quattro-inverter-chargers-improved-current-limits/|MultiPlus & Quattro Inverter/Chargers: Minimum AC Input Current Limits]]
  
 +[[https://community.victronenergy.com/questions/1702/multiplus-with-generator-and-residual-current-devi.html|Multiplus with Generator And Residual Current Devices]]
 +
 +===== Community Discussion on MultiPlus 2x120 and generator phase compatibility =====
 +
 +[[https://community.victronenergy.com/questions/110548/multiplus-ii-2x120-generator-compatibility.html|Multiplus II 2x120 generator compatibility]]
  
 +[[https://community.victronenergy.com/questions/128941/multiplus-ii-2x120-with-onan-5500.html|Multiplus II 2x120 with onan 5500 generator]]
  
  
-===== DISQUS ===== 
-~~DISQUS~~ 
multiplus_faq.1578476147.txt.gz · Last modified: 2020-01-08 10:35 by guy_stewart

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki