Differences

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--- mppt-error-codes [2023-07-06 10:07] – rvanzundert
+++ mppt-error-codes [2026-09-30 07:32] (current) – rvanzundert
@@ Line 175: / Line 175: @@
 If the charger is unable to turn off the PV input, it will go into a safe mode in order to protect the battery from over-charging or having a high voltage on the battery terminals. In order to do that, the charger will stop charging and disconnect its own output. The charger will become faulty.
-==== Err 41 - Inverter shutdown (PV isolation) ====
+==== Err 41 - PV isolation failure ====
 PV panel isolation resistance too low.
-Check the PV array cabling and panel isolation, the inverter restarts automatically once the issue is resolved.
+Check the PV array cabling and panel isolation.
+=== Inverters or Multis ===
+The inverter restarts automatically once the issue is resolved.
+Consider disconnecting the PV array using the PV switch to immediately resume AC operation.
+=== Solar Chargers ===
+The isolated battery charger remains operational.
+Once the issue is resolved restart the charger to clear this warning.
-==== Err 42 - Inverter shutdown (PV isolation) ====
+==== Err 42 - PV isolation failure ====
 The ground leakage current in the PV array exceeds the allowed 30mA limit.
 Check the PV array cabling and panel isolation.
-Check the installation and restart the unit using the power-switch.
+Consider disconnecting the PV array using the PV switch to resume AC operation.
-==== Err 43 - Inverter shutdown (Ground Fault) ====
+==== Err 43 - Ground fault detected ====
 The voltage difference between Neutral and Ground is too high.
-Inverter or Multi (not connected to the grid):
+=== Inverter or Multi (not connected to the grid) ===
   * The internal ground relay is activated but the voltage over the relay is too high. The relay might be damaged.
-Multi (connected to the grid):
+=== Multi (connected to the grid) ===
   * The ground wire in the installation is not present or not connected properly.
   * Line and Neutral are swapped in the installation.
@@ Line 218: / Line 226: @@
 Re-charge the battery or reduce the AC loads to continue operation.
-If the error immediately pops up when switching on the inverter (without load) on a full battery the cause is most likely a broken internal fuse.
+If the error immediately pops up when switching on the inverter (without load) on a full battery the cause is most likely a broken replaceable internal fuse. Contact your Victron dealer for support.
 ==== Err 55, Err 56, Err 58 - Inverter self test failed ====
 The inverter performs diagnostic tests before it activates its output. In the case that one of these tests fails an error message is displayed and the inverter does not turn on.
@@ Line 229: / Line 237: @@
 This error will not auto-reset. Check the installation and restart the unit using the power-switch.
+==== Err 59 - ACIN1 relay test fault ====
+Automatic checking of the disconnect means failure.
+This usually indicates a broken relay (sticky contact) in the AC input stage.
 ==== Information 65 - Communication warning ====
@@ Line 237: / Line 249: @@
 Make sure all settings are the same and update firmware on all chargers to the latest version.
+This error also appears if MPPTs are connected to a GX device while configured for a VE.Smart network. Disable the VE.Smart networking features and use DVCC on the GX instead.
+[[https://community.victronenergy.com/t/error-code-66-incompatible-device-warning-after-mppt-firmware-update-to-v-3-16/5278/2 | Further troubleshooting steps described here. ]]
@@ Line 282: / Line 299: @@
 Applies to Inverter RS models. Firmware versions 1.11 and higher.
-The Inverter RS model used cannot be paired with a Multi RS and/or Transfer Switch.
+Inverter RS units cannot be paired with a Multi RS and/or Transfer Switch.
-Only Inverter RS models with a production code newer than HQYYWW can be used for this purpose.
-Only the incompatible Inverter RS units will remain off.
 ==== Err 71 - Network misconfigured ====
@@ Line 306: / Line 321: @@
 The inverters remain operational, they won't connect to the grid. Once the issue is resolved the units will connect.
-==== Err 74 - Phase overload ====
+==== Err 74 - Too many units in parallel ====
 Applies to Inverter RS and Multi RS models. Firmware versions 1.12 and higher.
 The number of inverters in parallel doesn't match with the transfer capabilities of the ac input relay of the Multi RS or Transfer switch.
+The firmware does not support parallel units and a grid connection, so any combination of a Multi RS with a grid connection with more than one unit in parallel will trigger this error code on the Multi RS. The Multi RS only supports 3 units in 3-phase configuration at the moment.
 The inverters remain operational, they won't connect to the grid. Once the issue is resolved the units will connect.
+==== Err 75 - Network misconfigured ====
+Applies to Multi RS models. Firmware versions 1.19 and higher.
+Three phase operation is not yet certified in combination with the selected grid code.
+The inverters remain operational, they won't connect to the grid.
+==== Err 76 - Network incomplete ====
+Applies to Inverter RS and Multi RS models.
+The inverters shut down because there are insufficient units to operate a networked setup. Check if all required units are powered on and that the CAN interface cables are connected properly.
+All units remain off until the installation is fixed, after which the units resume operation.
+Related configuration settings in VictronConnect are "Prevent CAN network islanding" + "Number of inverters in the system" and "Continue with missing phase" in the System section.
+==== Err 77 - Settings sync disabled ====
+Applies to Inverter RS and Multi RS models. Firmware v1.29 and higher.
+This is a warning that indicates a mixed configuration in a networked setup where system settings synchronisation is enabled on some devices but not on all units. The units that have the settings synchronisation disabled show this warning. The units remain operational, to clear the warning either enable or disable system settings synchronisation on all units.
 ==== Err 80, Err 81, Err 82, Err 83, Err 84, Err 85, Err 86 and Err 87 - PV Input shutdown ====