Differences

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--- battery_compatibility:byd_b-box [2021-04-08 16:04] – [4. VEConfigure settings] added abs. voltage offgrid 56,5V (prevent frequency lock) boekel
+++ battery_compatibility:byd_b-box [2021-04-14 09:31] – [4. VEConfigure settings] boekel
@@ Line 193: / Line 193: @@
 | Charge curve           | Fixed   |
 | Absorption voltage     | 55.2 V  |
-| Absorption voltage off-grid systems | 56.5 V  |
+| Absorption voltage off-grid systems  (2)| 56.5 V  |
-| Float voltage          | 55 V  |
+| Float voltage (1)         | 55 V  |
 | Absorption time        | 1 Hr    |
-Note: make sure to double check the float voltage after completing Assistants, and if necessary set it back to 55 V.
+Notes:
+  - make sure to double check the float voltage after completing Assistants, and if necessary set it back to 55 V.
+  - Setting the Absorption voltage for off-grid systems to 56.5V is to ensure the PV Inverter Assistant works properly. Setting this voltage to 56.5V, ie a bit higher than the default 55.2V, prevents the Frequency shift algorithm to lock at 52.7 or 53 Hz, and thereby disabling AC-Coupled PV Inverters. The setting has no effect on the actual charge voltage as used by the inverter and other components in the system, since these are directed directly by the battery via DVCC.
 === 4.3 Inverter Settings ===