
Question & Answers (Q&A)
About Wi-Fi configuration
Q: Why can't I find the Solar-WiFi* signal on smart phone?
A: Normally Solar-WiFi* signal can be found after inverter powered up.
Please check if Wi-Fi module is connected well, and make sure inverter is powered up
normally.
Note: If Wi-Fi LED on inverter is single-blinking (0.5s on & o ), then it means Wi-Fi module is not
connected or not connected well.
Q: Why can't I find the Solar-WiFi* signal on smart phone?
A: It can connect to only device at a time. So please make sure other devices are not already
connected to the signal.
Note: Please make sure the password of the Wi-Fi signal (12345678) is not wrong.
About battery operation
Q: Why does the battery not discharge when grid is not available, while it discharge
normally when grid is available?
A: On App, off-grid output and back-up function should be turned on to make battery discharge
under off-grid mode.
Q: Why is there output on Back-Up side?
A: For back-up supply, the Back-Up function on PV Master App must be turned on. Under off-grid
mode or grid power is disconnected, Off-Grid output function must be turned on as well.
Note: When turning on O-Grid output, don't restart inverter or battery, otherwise the function will
switch o automatically.
Q: Why battery switch always trip when starts it up (Lithium battery)?
A: For lithium battery like LG, normally the switch trips for following reasons:
1. BMS communication fails.
2. Battery SOC is too low, battery trips to protect itself.
3. An electrical short circuit occurred on battery connection side. Or other reasons please
contact GoodWe for details.
Q: Which battery should I use for S-BP?
A: For S-BP inverters, it could connect lithium batteries, with nominal voltage 48V, max charge
voltage 60V.
Compatible lithium batteries please refer to S-BP QUICK INSTALLATION INSTRUCTIONS
About PV Master operation and monitoring
Q: Why can't I save settings on PV Master APP
A: This could be caused by losing connection to Solar-WiFi*.
1. Make sure you are connected to Solar-WiFi* (make sure no other devices connected) or
router (if connected Solar-WiFi* to router) and on APP home page shows connection is
stable.
2. Make sure S-BP is under wait mode (on App) before you change any settings on PV Master
App disconect grid/load, only leave battery connected and then restart S-BP till the work
mode displays "wait" on the App.
Q: On the App, why are the data displayed on the homepage and param page different,
like charge/discharge, load or grid value?
A: The data refresh frequency is different, so there will be a data inconformity between different
pages on App as well as between that on the portal and App.
Q: On the App, some columns show NA, like battery SOH, etc. why is that?
A: NA means App does not receive data from inverter or server, normally it is due to communica-
tion problem, such as battery communication, and communication between inverter and the
App. (For lead-acid battery, NA is normal)
About Smart Meter and Power Limit Function
Q: Is power limit function possible for S-BP system?
A: Please refer to page 11 for details of this function on S-BP system.
Q: Can I use other brand's Meter to take over Smart Meter in S-BP system or change
some settings on Smart Meter?
A: No, because the communication protocol between inverter and Smart Meter is in-build in the
Smart Meter, other brand's Meter cannot communicate. Also any setting change could cause
Smart Meter communication failure.
Q: What is the max current allowed going through CT on Smart Meter?
A: The max current for CT is 120A
Other questions
Q: Is there a quick way to make the system work?
A: The shortest way, please refer to S-BP QUICK INSTALLATION INSTRUCITONS
Q: What kind of load can I connect on Back-Up side?
A: Please refer to user manual on page 11.
Q: Will the warranty of the inverter still be valid if for some special conditions we cannot
100% follow the installation or operation instructions of the user manual?
A: Normally we still provide technical support to problems caused from disobeying the instruc-
tions of the user manual, but we cannot guarantee a replacement or returns. So if there is any
special condition when you cannot 100% follow the instrucions, please contact after-sales for
suggestions.
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