EPEVER MT50 Remote Meter for MPPT Solar Charge Controller Instruction Manual

EPEVER MT50 Remote Meter for MPPT Solar Charge Controller

Important Safety Instructions

SAVE THESE INSTRUCTIONS:
This manual contains important safety, installation and operating instructions for the Remote Meter.

General safety information

• Please inspect the MT50 thoroughly after it is delivered. If any damage is seen, please notify the shipping company or our company immediately. A photo of the damage may be helpful.
•  Read all instructions and cautions in the manual before starting the installation.
•  Keep the MT50 away from rain, exposure, severe dust, vibrations, corrosive gas and intense electromagnetic interference.
•  Do not allow water to enter remote meter.
•  There are no user-serviceable parts inside the controller. Do not disassemble or attempt to repair it.

General Information

Features
The new-generation remote display unit MT50 for the controllers is an associated display device which supports both the latest communication protocol and the voltage technology standard of solar controllers. The products have many excellent functions:

•  Automatically identify and display the type, model and relevant parameter data of controllers;
•  Real-time display the operational data and working status of the connection devices in digital, graphic and textual forms by a large-screen multifunction LCD;
• Direct, convenient and rapid operation of six navigation function keys;
•  Both data and power flowing on the same lead, no need for external power;
•  Real-time data monitoring and remote load switchover of the controllers, and data browse and modification of device parameters, charge control parameters and load control parameters;
• Real-time display of failure information of the connection devices;
•  Longer communication distance based on RS485.

Main functions
Functions like the real-time monitoring of the operational data and working status of a controller, the browse and modification of charge/discharge control parameters, the setting of device parameters and load control parameters and the restoration of factory defaults, based on LCD display and functional key operation.

Recommendations
Please do not install MT50 in a situation with strong electromagnetic interference.

Installation

Mechanical parameter

| ****

Parameter

---|---

Overall dimension

| ****

114 x 114 x 48.2mm

Mounting dimension

| ****

88.6 (3.49) x 88.6 (3.49) mm/ Zoll

Terminal| Φ5

Wall installation steps：

• Step1: Locate and drill screw holes based on the Frame Mounting dimension of the base, and erect the plastic expansion bolts;
• Step 2: Use four ST4.2×32 self-tapping screws to fix the frame;
• Step 3: Use four M4×8 pan head screws to mount MT50 Surface on the frame;
• Step 4: Mount the four associated screw plugs into the screw holes.

Steps of surface mounting:

•  Step 1: Locate and drill screw holes based on the installation size of the surface;
•  Step 2: Use four M4×8 cross recessed pan head screws with M4 nuts to mount MT50 Surface onto the panel;
• Step 3: Mount the four associated white screw plugs into the screw holes.

Note:
Take full consideration of the plugging/unplugging space of the communication cable and the length of the cable during installation to see if they are appropriate.

Product Features

• Failure indicator
  Failure indicator flashes in case of failure of the connection devices. For failure information please check the Controller Manual.

• Communication indicator
  Indicate communication status when MT50 is connected with the controller.

•   Display screen
  Man-machine interaction operation interface.

•   Buttons
  The Meter buttons include four navigation buttons and two operational buttons. See the specific directions in the Operational Manual.

• RJ45 communication and power interfaces
  Communication and power supply cable interfaces, used for communication connection with controllers.

•   Note:
  Please use the communication plug which is marked with “MT” to connect MT50

Monitoring screen

Operation

The buttons are respectively (from left to right) “ESC”, “Left”, “Up”, “Down”, “Right” and “OK “buttons, the operation is described in the schematic operation diagram below: Schematic operation diagram:

The default entry page is the browse mode. Pressing the password to enter the modification mode; button and inputt the correct  buttons could be finally used to respectively confirm and cancel the modification of the control parameters.

Main menu
Enter the Main Menu by pressing “Esc”. “Up” and “Down” buttons are respectively used to move the cursor to select the menu items, “OK” and “ESC” buttons are respectively used to enter or exit the corresponding pages of the menu items.

1.  Monitoring
2.  Device Info.
3. Test Operation
4.  Control Para.
5.  Load Set
6.  Device Para
7.  Device PSW.
8.  Factory Reset
9.  Failure Info.
10.  Meter Para.

Real-time monitoring
There are 14 pages under real-time monitoring. Please check it as below:

Operational tips:
Move between rows by pressing “Up” or “Down” buttons. Move along a row by pressing “Right” or “Left” buttons.

Device information
The product model, parameters and SN code of the controllers are displayed below:

Test operation
Load switch test operation is conducted on the connection solar controller to see if the load output is normal. The test operation does not affect the working settings under actual load, which means that the solar controller will exit from the test mode when exiting the operational interface of the test.

Operational tips: Enter the page and input correct password; use to modify the On/Off status values, while use confirm and cancel the test operation.

Control parameter
Browse and modification operations are conducted over the control parameters of solar charge controller. See the scope of parameter modification in control parameters table, and the page of control parameters in the diagram below:

-3mv/℃/2V

| ****

0~-9mv

Rated voltage| Auto| Auto/12V/24V/36V/48V

Battery voltage parameters
(Parameters is in 12V system at 25℃, please use X 2 in 24V, X 3 in 36 V, and X 4 in 48 V system)

Boost reconnect charging

voltage

| 13.2V| 13.2V| 13.2V| 9~17V
Low voltage reconnect voltage| 12.6V| 12.6V| 12.6V| 9~17V
Under voltage

warning reconnect voltage

|

12.2V

|

12.2V

|

12.2V

|

9~17V

Under voltage warning voltage| 12.0V| 12.0V| 12.0V| 9~17V
Low voltage disconnect voltage| 11.1V| 11.1V| 11.1V| 9~17V
Discharging limit voltage| 10.6V| 10.6V| 10.6V| 9~17V
Equalize duration| 120min| ——| 120min| 0~180min
Boost duration| 120min| 120min| 120min| 10~180min.

Notes:

1.  When the battery type is sealed, gel, flooded, the adjusting range of equalize duration is 0 to 180min and boost duration is 10 to 180min.
2.  The following rules must be observed when modify the parameters value in user battery type (factory default value is the same as sealed type):
3. Over Voltage Disconnect Voltage > Charging Limit Voltage ≥ Equalize Charging Voltage ≥ Boost Charging Voltage ≥ Float Charging Voltage > Boost Voltage Reconnect.
4. Over Voltage Disconnect Voltage > Over Voltage Reconnect Voltage
5.  Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage ≥ Discharging Limit Voltage.
6.  Under Voltage Warning Recover Voltage > Under Voltage Warning Voltage ≥ Discharging Limit Voltage.
7. Boost Voltage Reconnect > Low Voltage Reconnect Voltage.
   NOTE:
   Please refer to user guide or contact with the sales for the detail of setting operation.

Load setting
The page of load setting could be used to set the four load working modes of the connection solar controller (Manual, Light on/off, Light on+timer, Time control)

Manual control

and no abnormal conditions happen.

Off| Load is Off all the time.

Light On/Off

Light On voltage (Night threshold)| When input voltage of solar module is lower than Light On voltage, it automatically turns on load output if battery capacity is enough and no abnormal conditions happen.
---|---
Light Off voltage (Day threshold)| When input voltage of solar module is higher than Light Off voltage, it automatically turns off load output.

Delay time

| The confirmation time for Light signal. During the period, if light signal voltagecontinues matching Light On/Off voltage, it will carry out corresponding actions (The time adjustment range:0~99mins).

Light On+ timer

Working time 1

（T1）

| Load working period after light control

turns on load

| Any of the working time is set as “0”, it means this time will stop working. The real working time of T2 depends on the Night time, and the length of T1, T2.
---|---|---
Working time 2

（T2）

| Load working period before light control

turns off load

Night time| Total night time controller get from

calculation（≥3h）

Time control

Working time1

（T1）

| Control on/off time of

load through real-time clock

mode.

| Working time 1 is the compulsory load working time interval. Working time 2 is an optional.
---|---|---
Working time2

（T2）

| Realize the dual timer function of the load control through real-time clock mode.

Device parameter
The software version information of solar charge controller could be checked via the page of device parameters, and device data like device ID, device LCD backlight time and device clock could be checked and modified. The page of device parameter in the diagram below:

Note:
the bigger the ID value of the connection device, the longer the Meter communication identification interval (the maximum interval<6 minutes).

Device password
The password of the solar charge controller could be modified via the page of device password; the device password is a 6-digit figure which is required before entering the modification mode of “Control parameter”, “Load setting”, “Device parameter”, “Device password”, “Factory reset” pages. The page of device password in the diagram below:

Factory reset
The default parameter values of solar charge controller could be restored via the Factory reset page, which means the “Control parameter”, “Load setting”, “Charge mode” and “Device password” of the devices could be restored to the factory defaults (the factory default password of the devices is “000000”).

Failure information
The current failure information of the solar charge controller could be checked via the Failure information page (a maximum of 15 failure messages could be displayed); when the failures of solar charge controller are eliminated, the corresponding failure information will also be automatically eliminated.

Meter parameter
The meter model, software and hardware version, and SN NO. could be checked via Meter parameter page. And the three parameters (Switch pages, Backlight) could be browsed and modified as well.

Note:
When the set-up is accomplished, the auto switch page cannot become effective until ten minutes later.

Sw-Pages

|

0

|

0~120S

| The automatic switchover inverter for real-time monitoring page
BKlight| 20| 0~999S| LCD backlight time

Technical Specifications

Self-consumption

| Backlight <65mA
---|---
Backlight ON<23mA
Backlight OFF<15mA

Mechanical Parameter

Standard package:0.32 Kg

Environmental Parameter

REMOTE METER DIMENSIONS (mm)

Any changes without prior notice! Version number： V2.3

References

• solarv.de

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