Differences

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

--- assistants:self_consumption_hub-1 [2015-10-22 14:55] – mvader
+++ assistants:self_consumption_hub-1 [2019-01-21 10:36] – [Frequently asked questions] ictbeheer
@@ Line 7: / Line 7: @@
 ===== When to use the hub-1 Assistant? =====
-Use the Assistant for these systems with Solar chargers, ie. dc-coupled solar power:
+Use the Assistant for these systems with Solar chargers, where you want to disconnect from mains when possible. Which is the third policy on the list.
-  * Grid that allows feed-back
-  * Grid that does not allow feed-back
-  * Grid + a backup generator
+Usage of all other policies of Hub-1 have been deprecated, in favor of [[ess:start|ESS]].
-Do not use this Assistant for the following systems, even though they have solar chargers:
+Besides below information, there is more information about Hub-1 here:
-  * No grid nor generator; solar only
+  * [[https://www.victronenergy.com/blog/2016/06/10/color-control-gx-v1-51-released/|blog post about using a CCGX as a communication hub between a Multi (or Quattro) and one or more VE.Direct chargers]]
-  * Only a generator connected to the ac-input of the Multi or Quattro, no grid.
+  * [[assistants:hub1_and_hub2_notes|]]
-See also our [[http://www.victronenergy.com/blog/2014/03/07/hub-1-available/|blog post on hub-1]].
 ===== Frequently asked questions =====
-=== Do I need to connect the Multi or Quattro to the MPPT with VE.Can? ===
+=== Do I need to use the VE.Bus to VE.Can interface cable? ===
-No it is not required, just much recommended. And make sure to only use it when grid-feedback is enabeld. The advantages of using the VE.Bus to VE.Can interface are:
+No, not anymore since CCGX v1.73. See [[https://www.victronenergy.com/blog/2016/11/07/ccgx-v1-73-hub-1-byd-b-box-and-more-lithium-batteries/|v1.73 blogpost]] for details.
-  * The MPPT will automatically use the settings from the Multi, no need to configure the MPPT.
-  * Equalize is managed by the Multi
-  * The charge states will be synchronized
-  * No risk that the MPPT switches to float before the Multi does, and therefore backfeeding will stop
-Notes for systems where the Multi and the MPPT are not communicating (for example an MPPT 100/50 that does not have a VE.Can comm. port):
-  * Power can still be fed back to the grid!
-  * Set the absorption and float voltage of the MPPT slightly higher than the same set points in the Multi
-  * In a Lithium system, make sure that the MPPT can be switched off by the BMS.
-More information in the [[[[ve.can:ve.bus_to_ve.can_interface_manual|VE.Can to VE.Bus interface manual]].
 === What happens when there is to power to be fed back, but there is no grid available? ===
@@ Line 51: / Line 35: @@
 With older Multis and Quattros it is unfortunately not possible to feed power from DC back into the grid. It is possible to [[dc_coupling:prioritize_solar|prioritize solar in a dc-coupled system]].
-~~DISQUS~~
+=== How many MPPT 150|70 or 150|85 can be connected in parallel ===
+A maximum of 25 units can be connected in parallel.