find below a tabel with the parameters you can set in the Growatt SPF inverters.
Column B is meant to be the menu where you can access this parameter. In some cases for 111 and 305 you have to hold arrow up and down at the same time in the inverter and press the menu number as password. There are some descriptions for now in german but I will update the list in the future.
Parameter 25, 26 and 35 are not used or unknown for now. If you have further details for those parameters please report…
| Program | Menu | Description | |
| 1 | 000 | Output source priority: To configure load power source priority | |
| 2 | 000 | Maximum charging current: set total charging current for solar and utility chargers. (Max. charging current = utility charging current + solar charging current) | |
| 3 | 000 | AC input voltage range | |
| 4 | 000 | Power saving mode enable/disable | |
| 5 | 000 | Battery type | |
| 6 | 000 | Auto restart when overload occurs | |
| 7 | 000 | Auto restart when over temperature occurs | |
| 8 | 000 | Output voltage *This setting is only available when the inverter is in standby mode (Switch off). | |
| 9 | 000 | Output frequency *This setting is only available when the inverter is in standby mode (Switch off). | |
| 10 | 000 | Number of series batteries connected | |
| 11 | 000 | Maximum utility charging current Note: If setting value in Program 02 is smaller than that in Program 11, the inverter will apply charging current from Program 02 for utility charger | |
| 12 | 000 | Setting voltage point back to utility source when selecting “SBU priority” or “Solar first” in program 01 | |
| 13 | 000 | Setting voltage point back to battery mode when selecting “SBU priority” or “Solar first” in program 01 | |
| 14 | 000 | Charger source priority: To configure charger source priority | |
| 15 | 000 | Alarm control | |
| 16 | 000 | Backlight control | |
| 17 | 000 | Beeps while primary source is interrupted | |
| 18 | 000 | Overload bypass: When enabled, the unit will transfer to line mode if overload occurs in battery mode. | |
| 19 | 000 | C.V. charging voltage. If self-defined is selected In program 5, this program can be set up | |
| 20 | 000 | Floating charging voltage. If self-defined is selected in program 5, this program can be set up | |
| 21 | 000 | Low DC cut-off voltage. If self-defined is selected in program 5, this program can be set up. Low DC cut-off voltage will be fixed to setting value no matter what percentage of load is connected. | |
| 22 | inactive | Solar Balance SbE enabled (max charge plus loads) / Sbd disabled (max charge only) | |
| 23 | 000 | AC output mode *This setting is only available when the inverter is in standby mode (Switch off). Note: Parallel operation can only work when battery connected | |
| 24 | inactive | NEC disable/enable closes dry contact on battery /opens relay on utility | |
| 25 | |||
| 26 | |||
| 27 | 111 | CAP (Inverter Capacity) | |
| 28 | 000 | Address setting (for expansion) | |
| 29 | 111 | Grdv (vermutlich Grid Voltage) | Offsetwert um die Netzspannung zu kalibrieren |
| 30 | 111 | bat.v (Battery Voltage Offset) | braucht man wenn die Bat V im Lastzustand bei mehreren parallelen Geräten unterschiedlich ist hab ich probiert und tut genau das was ich beschreibe… |
| 31 | 111 | INv (vermutlich Invertervoltage Offset) | (vermutlich Invertervoltage Offset) |
| 32 | 111 | OUtv (Output Voltage Offset) | vermutlich auch ein Offsetwert für die abgebene AC Spannung |
| 33 | 111 | Pvv (PV Voltage) | vermutlich auch ein offsetwert für den PV Spannungseingang |
| 34 | 305 | RST parameter reset | |
| 35 | |||
| 36 | LI- P5 | Battery Protocoll CAN/RS485 | |
| 37 | 000 | Real time setting—Year | |
| 38 | 000 | Real time setting—Month | |
| 39 | 000 | Real time setting—Date | |
| 40 | 000 | Real time setting—Hour | |
| 41 | 000 | Real time setting—Minute | |
| 42 | 000 | Real time setting—Second | |
| 43 | 000 | Battery equalization | |
| 44 | 000 | Battery equalization voltage | |
| 45 | 000 | Battery equalized time | |
| 46 | 000 | Battery equalized timeout | |
| 47 | 000 | Equalization interval | |
| 48 | 000 | Equalization activated immediately | |
| 49 | 000 | Utility charging time | |
| 50 | 000 | AC output time | |
| 51 | 111 | FrSt dis | ??? |
| 52 | 111 | PvIS dis | ??? |
| 53 | 111 | EtL | ??? |