ve.bus:ve.bus_error_codes
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
ve.bus:ve.bus_error_codes [2019-02-11 13:06] – [Error 11 - Relay Test Fault - Installation error or possibly relay failure] mvader | ve.bus:ve.bus_error_codes [2019-02-14 20:45] – [Error 24 - Sw simonhackett | ||
---|---|---|---|
Line 95: | Line 95: | ||
=== Detailed diagnosis of Error 11 === | === Detailed diagnosis of Error 11 === | ||
+ | After updating your VE.Bus inverter/ | ||
- | Recently, detailed read-out of the Error 11 was add | + | [TODO; add image here] |
- | After updating your inverter/ | + | {{ : |
+ | {{ : | ||
+ | {{ : | ||
+ | {{ : | ||
+ | |||
+ | It shows: | ||
+ | * A six digit number; which contains all the details | ||
+ | * A counter | ||
+ | * Flags | ||
+ | * The failed step; it counts backwards: step 9 -> 8 -> 7 and so forth. | ||
+ | |||
+ | |||
+ | Common causes: | ||
* Failing step #8: check that line and neutral have not been swapped. Unlike non-grid code installations; | * Failing step #8: check that line and neutral have not been swapped. Unlike non-grid code installations; | ||
Line 130: | Line 143: | ||
==== Error 24 - Switch-over system protection initiated ==== | ==== Error 24 - Switch-over system protection initiated ==== | ||
- | There is a back-feed (or ' | + | There is a back-feed (or ' |
- | Error 24 is raised when a Multi or Quattro detects current flowing through | + | Error 24 is raised when a Multi or Quattro detects current flowing through |
This should not occur in a correctly installed and sized system. Possible causes in order of probability: | This should not occur in a correctly installed and sized system. Possible causes in order of probability: | ||
Line 138: | Line 151: | ||
- There is too much AC load connected at the moment the relay needs to switch off. This large current will prevent the relay contacts from opening.\\ \\ Solution: remove excessive load. \\ \\ | - There is too much AC load connected at the moment the relay needs to switch off. This large current will prevent the relay contacts from opening.\\ \\ Solution: remove excessive load. \\ \\ | ||
- The AC input voltage slowly drops before it is being rejected by the Multis. Typically happens in installations with a genset. Especially when combined with AC loads that increase their current draw when the AC voltage drops: at the moment the Multis or Quattros decide to switch off, the current through the relays is too high to open them.\\ \\ Solution: Make the Multis or Quattros disconnect earlier: increase lower limit of AC input voltage in VEConfigure3. For example to 210 VAC. The factory setting is 180 VAC. \\ \\ | - The AC input voltage slowly drops before it is being rejected by the Multis. Typically happens in installations with a genset. Especially when combined with AC loads that increase their current draw when the AC voltage drops: at the moment the Multis or Quattros decide to switch off, the current through the relays is too high to open them.\\ \\ Solution: Make the Multis or Quattros disconnect earlier: increase lower limit of AC input voltage in VEConfigure3. For example to 210 VAC. The factory setting is 180 VAC. \\ \\ | ||
- | - The back-feed relay has a hardware failure | + | - The back-feed relay has a hardware failure \\ \\ Solution: Replace faulty unit. |
+ | |||
+ | __Diagnostic notes for systems showing error 24 where a stuck ' | ||
- | __Diagnostic notes for multi-unit clusters showing error 24__ | + | In a single phase installation with two or more devices in parallel, or a three-phase installation with six or more devices, it can be difficult to identify the unit that is faulty because all units in at the relevant group of units will raise 'Error 24' |
- | With all Multis or Quattros | + | This happens because the faulty unit will be (incorrectly) supplying AC energy on it output at times when it should not be - including when its front panel rocker switch is set to ' |
- | If AC //is// present on the output side while the units are switched off, this energy | + | To help identify which unit is faulty in this scenario, first un-wire |
- | In a parallel-wired cluster, one faulty relay will make it appear that all units wired in parallel are faulty. To determine which unit is really at fault, power the cluster down and un-wire all AC inputs | + | If this is not conclusive, try completely disconnecting |
==== Error 25 - Firmware incompatibility ==== | ==== Error 25 - Firmware incompatibility ==== |
ve.bus/ve.bus_error_codes.txt · Last modified: 2024-04-24 00:32 by mleeftink