Wind turbine charge controller is not charging LiFePo4 Battery

I am quite new in this forum and would appreciate, if you can share your thoughts and suggestions on my subject as explained below:

I installed an Off-Grid Solar, Wind and Battery connected parallel to each other. Solar panels(3.6kWp) are connected to Growatt SPF5000 ES off-grid inverter. The battery is also from Growatt (Hope 3.3L-C1) with 3300Wh capacity, LiFePO4 type, with BMS, communicates via CAN with the Solar Off-Grid Inverter. The Wind turbine (3.3kW at 14m/s / starts generating at 3m/s - as per datasheet) has its own Charge Controller with 48Vdc output and 5 kW dump load. 

The Battery, Wind Charge Controller and Off-Grid Solar Inverter DC outputs are connected in parallel to a 48Vdc busbar in a panelboard. But so far no loads have been connected to the system. Only the internal consumptions(draws 35VA in average) of the devices uses energy from either from solar, battery or both. 

I have been monitoring the behavior of the system for a few days through the monitoring system of the inverter and it seems that the Wind Turbine Charge Controller is not charging the Battery. In a normal day time, when the battery goes down to %95 SOC level, It is charged back again to %100 SOC with the Solar inverter. As the PV Modules are not generating energy at night, the level of the battery is going down to around %70 SOC level (due to internal loads). When the Solar Energy becomes available in the early morning, the battery starts being charged back to %100 SOC via solar Power. So there is no charging activity via wind turbine. 

At the same time, the voltage readings of the battery is so: 52.4Vdc @%70 SOC and 55.4Vdc @%100 SOC.

According to wind turbine manufacturer, the charge controller tracks the voltage of the battery, and cutoff charging when the battery voltage hits 56Vdc. But I have no idea, at which battery voltage level the charge controller starts charging the battery.

Btw; the turbine is rotating quite normal throughout the day and the AC voltage readings at the output of the turbine is around 30Vac(0..145Vac as per data sheet). However, there either no or very small ac current.

So, I am trying to find out, why the battery is not being charged via wind turbine charge controller. Could it be due to the battery voltage level, which I've read lowest 52.4Vdc so far? Should I allow battery to discharge even lower level like %45 SOC?

It might be hard for you to figure out system in detail, but incase you need further detail, I can share.