Epever Tracer-BN Series MPPT, User Manual

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3
Explanation:
①
Connection for a RTS (Remote Temperature Sensor) to remotely detect battery
temperature.
②
Monitor controller by PC and update controller software via RS485 (RJ45
interface).
1.3 Accessories Instructions
1. Remote Temperature Sensor (Model: RTS300R47K3.81A)
Acquisition of battery temperature for undertaking temperature compensation of
control parameters, the standard length of the cable is 3m (length can be
customized). The RTS300R47K3.81A connects to the port (3
th
) on the controller.
NOTE: Unplug the RTS, the temperature of battery will be set to a fixed value
25ºC.
2. Remote Meter (Model
：
MT50)
The digital remote meter displays system operating information, error indications,
parameters setting and self-diagnostics.
3. Super Parameter Programmer (Model: SPP-02)
The SPP-02 can realize one-key setting operation which is suitable for bulk quantity
products setting in the projects.
4. USB To RS-485 converter (Model: CC-USB-RS485-150U)
USB To RS-485 converter is used to monitor each controller on the network using
Solar Station PC software and update the firmware. The length of cable is 1.5m. The
CC-USB-RS485-150U connects to the RS-485 Port on the controller.
1.4 Maximum Power Point Tracking Technology
Due to the nonlinear characteristics of solar array, there is a maximum energy output
point (Max Power Point) on its curve. Traditional controllers, with switch charging
technology and PWM charging technology, can
‘t charge the battery at the maximum
power point, so can
‘t harvest the maximum energy available from PV array, but the
solar charge controller with Maximum Power Point Tracking (MPPT) Technology can
lock on the point to harvest the maximum energy and deliver it to the battery.
The MPPT algorithm of our company continuously compares and adjusts the
operating points to attempt to locate the maximum power point of the array. The
tracking process is fully automatic and does not need user adjustment.
As the Figure 1-2, the curve is also the characteristic curve of the array, the MPPT
technology
will ‗boost‘ the battery charge current through tracking the MPP.
Assuming 100% conversion efficiency of the solar system, in that way, the following