Epsolar MT50 Instruction Manual

INSTRUCTION MANUAL

Remote Meter: MT50

Thank you very much for selecting our product!

This manual offers important information and suggestions with respect to
installation, use and troubleshooting, etc. Please read this manual carefully before
using th e product.

Remote Meter

MT50

Remote meter (Model MT50) is available to connect with solar

controller LSxxxxB(P), VSxxxxBN and TracerxxxxBN(P).

Contents

1 Important Safety Instructions ............................................................... 1

2 General Information ............................................................................ 2

2.1 Features .............................................................................................. 2

2.2 Main functions ................................................................................... 3

2.3 Recommendations ............................................................................ 3

3 Installation........................................................................................... 4

4 Product Features ................................................................................ 8

5 Operation ......................................................................................... 12

5.1 Buttons ............................................................................................... 12

5.2 Main menu ......................................................................................... 13

5.3 Real-time monitoring ...................................................................... 14

5.4 Device information ........................................................................... 16

5.5 Test operation .................................................................................. 16

5.6 Control parameter ........................................................................... 17

5.7 Load setting ..................................................................................... 21

5.8 Device parameter ........................................................................... 24

5.9 Device password ............................................................................. 25

5.10 Factory reset ................................................................................... 25

5.11 Failure information .......................................................................... 26

5.12 Meter parameter ............................................................................. 27

6 Technical Specifications .................................................................... 28

1

1 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.

2

2 General Information

2.1 Features

The new-generation remote display unit MT50 for LSxxxxB(P), VSxxxxBN
and TracerxxxxBN(P) 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:

■

Automatic 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 th e 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 and acoustic alarm of failure information of the
connection devices;

■

Longer communication distance based on RS485.

3

2.2 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.

2.3 Recommendations

■

Please confirm that MT50 is only allowed to connect with our
LSxxxxB(P), VSxxxxBN and TracerxxxxBN(P) series controllers before
purchase;

■

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

4

3 Installation

Frame Mount Dimensions(

mm)

5

Mechanical

parameter

Parameter

Overall

dimension

114 x 114 x 48.2mm

Mounting

dimension

84x 84mm

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;

Frame Mounting

6

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.

Surface Mounting

7

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.

Surface mounting

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.

8

4 Product Features

9

RS485 communication and power interface

Rear View

Failure indicator

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

10

Alarm

Fault audible alarm, could be activated or deactivated.

Communication indicator

Indicate communication status when MT50 is connected with the controller.

Display screen

Man-machine interaction operation interface.

Buttons

The Meter buttons includes 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

11

Day and night icons

-Night

，

- Day: The threshold voltage is 1V. Higher than 1V is daytime.

Charge current icon

The icon is dynamically if there is charge current.

Battery icon

The battery capacity is dynamically displayed

Note: When the battery is in over discharge status, the icon displayed
is“ ”.

Battery status icons

-Normal voltage, -Under voltage, -Over discharge.

Load current icon

The icon is dynamically if there is discharge current.

Load status icon

- Load On, - Load Off.

Note: In Manual Mode, pressing the "OK" button will switch the load status

between "ON" and "OFF"

12

5 Operation

5.1 Buttons

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

13

The default entry page is the browse mode. Pressing button and inputting
the correct password to enter the modification mode; and buttons

could be used to move the cursor, and buttons could be used to
modify the parameter values when the cursor is located at the current place;

and buttons could be finally used to respectively confirm and cancel

the modification of the control parameters.

5.2 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.

14

5.3 Real-time monitoring

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

17.5V 13.8V 13.8V

15.2A 5.2A 10.0A

LS****B

Jan-01-2013

02:34:33

Char. Energy

Day: 0.00kwh

Mon: 0.00kwh
Total: 0.00kwh

DisCh. Energy

Day: 0.00kwh
Mon: 0.00kwh
Total: 0.00kwh

Battery
Charge: NoCharge
Energe: Normal
Fault: No

Battery

Vol: 0.0V

Cur: 0.0A

Battery

Temp.: 22.4℃
Max. Vol: 12.7V
Min. Vol: 12.7V

15

PV
Sta.: DisConnect
Fault: No
Char.: PWM/MPPT

Load
Sta.: OFF
Fault: No

Load Mode

Information

Load Mode

Information

Load
Vol: 0.0v
Cur: 0.0A
Power: 0.0W

PV
Vol: 0.0V
Cur: 0.0A
Power: 0.0W

Controller
Temp.: 25.0℃
Sta.: Normal

Operational tips:

Move between rows by pressing "Up" or "Down" buttons. Move along a row by

pressing "Right" or "Left" buttons.

16

5.4 Device information

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

Operational tips: and buttons are respectively used to turn the
browse page upward and downward.

5.5 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.

Test Operation

LS****B: OFF

Operational tips: Enter the page and input correct password; use and
buttons to modify the On/Off status values, while use and buttons

respectively to confirm and cancel the test operation.

LS****B
Rate.Vol: 12V
Char.Cur: 10.0A
Disc.Cur: 2.6A

LS****B

SN:0002201301200045

17

5.6 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:

Over Volt. Disc

16.0V

Charge Limit

15.0V

Batt. Type

Sealed

Batt. AH

200AH

Temp Comp.Coeff

-3mv/℃/2V

Rated Voltage

12V

Boost Rec.

13.2V

Low Volt. Rect.

12.6V

Ooer Volt. Rec.

15.0V

Eugal. Charge

14.6V

Boost Charge

14.4V

Float Charge

13.8V

Equalize Time

120min

Boost Time

120min

Under Volt. Rect

12.2V

Under Volt. Warn

12.0V

Low Volt. Disc

11.1V

Discharge Limit

10.6V

18

Control parameters table

Parameters

Default

Range

Battery type

Sealed

Sealed/Gel/Flooded/User

Battery Ah

200Ah

1~9999Ah

Temperature

compensation coefficient

-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)

19

Battery charging setting

Sealed

Gel

Flooded

User

Over voltage disconnect voltage

16.0V

16.0V

16.0V

9~17V

Charging limit voltage

15.0V

15.0V

15.0V

9~17V

Over voltage reconnect voltage

15.0V

15.0V

15.0V

9~17V

Equalize charging voltage

14.6V

——

14.8V

9~17V

Boost charging voltage

14.4V

14.2V

14.6V

9~17V

Float charging voltage

13.8V

13.8V

13.8V

9~17V

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.

20

Notes:

1. When the battery type is sealed, gel, flooded, the adjusting range of
equalize duration is 0 to180min and boost duration is 10 to180min.

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):

a) Over Voltage Disconnect Voltage > Charging Limit Voltage ≥ Equalize

Charging Voltage ≥ Boost Charging Voltage ≥ Float Charging Voltage >

Boost Reconnect Charging Voltage.
b) Over Voltage Disconnect Voltage > Over Voltage Reconnect Voltage

c) Low Voltage Reconnect Voltage > Low Voltage Disconnect Voltage ≥

Discharging Limit Voltage.
d) Under Voltage Warning Reconnect Voltage > Under Voltage Warning
Voltage ≥ Discharging Limit Voltage.
e) Boost Reconnect Charging voltage > Low Voltage Disconnect Voltage.

NOTE: Please refer to user guide or contact with the sales
for the detail of setting operation.

21

5.7 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
◎Light On/off
◎Light On+Timer
◎Time Control

Manual Control
Default : ON

◎Manual Control
√Light On/off
◎Light On+Timer
◎Time Control

Light On/Off
On 05.0V DeT 10M
Off 06.0V DeT 10M

Light On+Timer
OnTime1 01H:00M
OnTime2 01H:00M

◎Manual Control
◎Light On/off
√Light On+Timer
◎Time Control

Light On+Timer
On 05.0V DeT 10M
Off 06.0V DeT 10M
NightTime10H:00M

Time Control
□Time2
OnTime 19:00:00
OffTime 19:00:00

◎Manual Control
◎Light On/off
◎Light On+Timer
√Time Control

Time Control

■Time1
OnTime 10:00:00
OffTime 19:00:00

22

①

Manual control

Mode

Introductions

On

Load is on all the time if battery capacity is enough and
no abnormal conditions happen.

Off

Load is Off all the time.

②

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 voltage continues
matching Light On/Off voltage, it will

carry out corresponding actions(The time
adjustment range:0~99mins).

③

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）

23

④Time 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.

24

5.8 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).

Type

Notes

Ver

Solar charger controller software and
hardware version numbers.

ID

Solar charger controller communication
ID numbers.

Bklight

Solar charger controller LCD backlight
working time.

Month-Day-Year H:M:S

Solar charger controller internal clock.

Device Parameter

Ver: V01.00+V02.10

ID: 001

Device Parameter

Bklight:60S

Jan-01-2013

00:01:39

25

Factory Reset

Yes No

5.9 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:

Note: Solar charge controller default password is”000000”

5.10 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”).

Device PSW

OriPsw:xxxxxx

NewPsw:xxxxxx

26

5.11 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.

Failure information

Details

Load MOS-Short

The MOSFET of load driver is short.

Load Circuit

The load circuit is short.

Load O. cur.

The load circuit is over current.

Input O. cur.

PV input current is over rate.

RPP Short

The MOSFET of reverse polarity protection is short.

RPP Break

The MOSFET of reverse polarity protection is break.

Char.MOS-Short

The MOSFET of charge driver is short.

Input O. Cur.

Input current is over rate.

Disc.O.O.Ctrl.

Discharge operation is out of control.

Ctrler O.Temp.

The controller is over temperature.

Comm. Timeout

The communication is timeout.

Failure Info

1.Over voltage

2.Over load

3.Short circuit

27

5.12 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, Audible alarm) could be browsed and modified as well.

Meter Para.
Taye: MT50
Ver: V1.00+V1.00
SN: ………………

Meter Para.
Sw-Pages:000S
Bklight:020S
AudiAlam: OFF

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

Parameters

Default

Range

Remark

Sw-Pages

0

0~120S

The automatic switchover
inverter for real-time
monitoring page

BKlight

20

0~999S

LCD backlight time

AudiAlam

OFF

ON/OFF

Turn ON /OFF the acoustic alarm
function in case of failure on solar
charge controller

28

6 Technical Specifications

Electrical Parameter

Self-consumption

Backlight and acoustic alarm ON<65mA

Backlight ON<23mA

Backlight OFF<15mA

Mechanical Parameter

Faceplate dimensions

98×98 mm

Frame dimensions

114×114 mm

Connector type

RJ45

Meter cable

Standard 2m,Max 50 m

Meter weight

Simple package: 0.23 Kg
Standard package:0.32 Kg

Environmental Parameter

Ambient temperature

-20℃~+70℃

29

Definitions of interface pins

Pin No.

Definition

1

Power+5~12V input

2

Power+5~12V input

3

RS485-B

4

RS485-B

5

RS485-A

6

RS485-A

7

GND

8

GND

Data cable pin definitions

30

REMOTE METER DIMENSIONS (mm)

Any changes without prior notice! Version number：V2.1

BEIJING EPSOLAR TECHNOLOGY CO.,LTD.

Te l : [phone] / 82894962
Fax: [phone]

E-mail: [email protected]
Website: http://www.epever.com/