Renogy MT-50 User manual

1
MT-50 Remote Tracer Meter
RENOGY Remote Tracer Meter for Commander
Series and ViewStar Series Charge Controllers
2775 E. Philadelphia St., Ontario CA 91761
1-800-330-8678
Version 2.0

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General Information......................................................................................................3
Identification of Parts ...................................................................................................4
Installation.....................................................................................................................5
Frame Wall Mount Installation..................................................................................5
Flush Wall Mount Installation...................................................................................6
Operation.......................................................................................................................6
Menu Display.............................................................................................................6
1. Monitoring...........................................................................................................7
2. Device Info..........................................................................................................9
3. Test Operation....................................................................................................9
4. Control Parameters............................................................................................9
5. Load Set............................................................................................................11
6. Device Parameters ...........................................................................................13
7. Device Password..............................................................................................13
8. Factory Reset....................................................................................................14
9. Failure Info........................................................................................................14
10. Meter Parameters.............................................................................................14
System Status Icons...................................................................................................15
System Status Glossary.............................................................................................16
Failure Information......................................................................................................17
Device Considerations ...............................................................................................17
Warning Indicator....................................................................................................17
Telecommunication Port ........................................................................................18
Battery Level Flashing............................................................................................18
Battery capacity AH ................................................................................................18
Troubleshooting..........................................................................................................18
Technical Specifications ............................................................................................19
Mechanical Parameters ..........................................................................................19
Temperature Parameters........................................................................................19
Electrical Parameters..............................................................................................19
Charging Parameters..............................................................................................19
Threshold Voltage Parameters...............................................................................20
Interface Pin Numbers............................................................................................20
CAD Dimensions.....................................................................................................21
Table of Contents

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Important Safety Instructions
Please save these instructions.
This manual contains important safety, installation, and operating instructions for the unit. The
following symbols are used throughout the manual to indicate potentially dangerous conditions
or important safety information.
WARNING: Indicates a potentially dangerous condition. Use extreme caution when performing
this task.
CAUTION: Indicates a critical procedure for safe and proper operation of the controller
NOTE: Indicates a procedure or function that is important to the safe and proper operation of the
controller.
General Safety Information
•Inspect the MT-50 after it is delivered. If any damage, notify the company immediately. A
photograph might be helpful as well.
•Read all directions and cautions in the manual before installation
•Keep the MT-50 away from rain, severe dust, and electromagnetic interference.
General Information
The Renogy MT-50 is a new generation meter compatible with the Commander Series and
ViewStar Series charge controllers. It is a self-diagnostics meter ideal for monitoring and
displaying the current solar system status information and any error indications the system might
be experiencing. The information is displayed on a backlit LCD display and is easily navigated
using the buttons on the meter. The MT-50 could also be flush mounted on a wall or flat surface
using the mounting frame provided.
NOTE: The MT-50 is not compatible with the Commander 60A charge controller.
Key Features
•Large backlit LCD display
•Compatible with multiple Commander Series (20A/40A) and ViewStar Series
(10A/20A/30A) charge controllers
•Real-time monitoring and graphical display
•Customizable parameters for charge control and load control
Included Components
•Wall Mounting Frame
•6.5 foot cable
•4 x ST4.2X32 self-tapping screws

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Identification of Parts
Key Parts
1. Communication Indicator (Green)
2. Alarm Sound port (Alarm will be discontinued in new models)
3. Warning Indicator (Red)
4. 4 X Mounting Holes
5. Display Screen
6. Navigation Buttons
7. RS485 Port

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Installation
WARNING: BEFORE drilling, make sure there are no electrical components or other obstacles
that may interfere with installation on the other side of the mounting surface.
CAUTION: Before installing the MT-50, apply power and make sure the meter is working properly.
Resolve any issues before installing the meter and the meter cable.
The MT-50 can be mounted in two ways: Frame Wall Mount or in a Flush Wall Mount. A plastic
mounting frame has been included for the purpose of Frame Wall Mounting. If Flush Wall
Mounting then the MT-50 faceplate sits flush with the mounting surface and the body of the meter
would be able to rest comfortably in a hole cut-out on the mounting surface.
Frame Wall Mount Installation
When frame mounting, the MT-50 Tracer will be utilizing
the provided frame and be mounted on a wall or surface.
No cut-outs are required for the surface with the
exception of the 4 x screw holes.
1. Locate and drill the screw holes based on the
mounting frame dimension and erect the plastic
expansion bolts on the wall.
2. Use 4 x ST4.2x32 self-tapping screws to fix the
frame.
3. Use 4 x M4x8 pan head screws to mount the MT-
50 front to the frame
4. Mount the 4 associated screw plugs into the screw
holes
5. Plug the meter in and verify the meter powers up
and displays the appropriate data. Troubleshoot if
necessary.

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Flush Wall Mount Installation
This is a low-profile installation. The faceplate of the MT-50 sits flush with the mounting surface
or wall and the body of the meter rests in a hole cut-out on the mounting surface. The meter
wiring is concealed behind the mounting surface, or the interior of the wall.
1. Locate and drill screw holes based
on the installation size of the surface.
Level the faceplate and remove a
hole-cutout.
2. Use 4 x M4x8 cross recessed pan
head screws with the M4 nuts to
mount the MT-50 surface onto
surface.
3. Mount and use white plugs in the
screw holes.
Operation
NOTE: The MT-50 is not compatible with the Commander 60A charge controller.
The following keys are used to cycle through the screens or adjust the parameters on the tracer:
Once the Tracer Meter is connected, the user will see welcome screen followed by a device info
screen, before settling on the Default Screen.
Menu Display
Press ESC to access the main menu, and utilize the up and down keys to maneuver through the
menu. Select OK to choose an option
NOTE: In some models, you might be prompted to enter a password. Simply put “0” all the way
through and press enter.
Welcome
VS2024BN
Rate.Vol: 24V
Char.Cur: 20A
Disc.Cur: 20A

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NOTE: To customize charge parameters, Battery Type must be set to USER, under 4. CONTROL
PARAMETERS
NOTE: The values found in your controller are default values and will not necessarily match the
ones listed. The values on this table are to show the user what the different screens are used for.
1. Monitoring
NOTE: Use the up and down arrows to maneuver through the monitoring menus. The left and
right arrows indicate submenus and display further information regarding the system
The Default Screen displays information regarding
the PVmodule, Battery, and Load. The PVmodule
indicator will have a sun or a moon depending on
the time of day. The face will indicate normal
system behavior in terms of the battery.
The screen displays the Charge Controller Model
Number, followed by the Date and Time.
The kilowatt hours accumulated in a day, Month,
and total since the controller has been turned on
NOTE: Once the battery is disconnected, the values
are reset to 0 unless there is an external battery
installed on the controller face
Same as above but regarding discharged energy
Demonstrates the battery’s Voltage, Amperage,
and State of Charge (SOC).
NOTE: The Battery SOC% is an estimation
based on the charging voltage.
Battery
Voltage: 0.00 V
Current: 0.00 A
SOC: 0.05 %
Discharge Energy
Day: 0.00 kWh
Month: 0.00 kWh
Total: 0.05 kWh
Charge Energy
Day: 0.00 kWh
Month: 0.00 kWh
Total: 0.05 kWh
VS2024BN
Jan-01-2015
04:40:44

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Demonstrates Battery Temperature, the Max.
Voltage detected and the Minimum Voltage
Detected by the Battery.
This screen gives the user a visual of battery
status beyond voltage, temperature, and
amperage. The user can see if they battery is
charging, the energy flow, and if there are any
faults In the system.
Looks at PV voltage, current, and power
generated.
Demonstrates PV status in terms of it PV state,
whether there is a fault detected, and the mode of
charge.
The charge controller’s temperature and status is
displayed.
Displays the current Load Voltage, Current, and
Power generated in kilowatt hours.
Indicates whether the load is on or off and whether
it is experiencing any error.
Determines whether the user wants to manually
control the paramaters of the Load.
NOTE: If timers are on, then it will display that
screen as opposed to this screen.
Manual Control
Default: Off
Load
Work: OFF
Fault: Yes
Load
Voltage: 000.0 V
Current: 000.0 A
Power: 000.0 kWh
Controller
Temperature: 000.0 °C
Status: Normal
PV
Work: Disconnect
Fault: No
Mode: PWM
PV
Voltage: 0.0 V
Current: 0.0 A
Power: 0.0 W
Battery
Charge: No Charge
Energy: Normal
Fault: No
Battery
Temperature: 0.00 °C
Max Voltage: 0.00 V
Min Voltage: 2.4 V

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2. Device Info
NOTE: Use the up and down arrows to maneuver through the monitoring menus. The left and
right arrows indicate submenus and display further information regarding the system
Displays device info for the charge controller and
the next menu displays the charge controller name
and screen number.
3. Test Operation
NOTE: Press OK to change from reading mode to parameter setting mode. Once the parameter
is highlighted, use the UP and DOWN arrows to adjust the setting and press OK once again to
save the setting.
The test operation isused for the load terminal and
determines whether the output is normal. It does
not affect the working-load settings (if there are
any preset) and upon turning the test operation
on/off, the screen will save and exit.
4. Control Parameters
NOTE: Press OK to change from reading mode to parameter setting mode. Once the parameter
is highlighted, use the UP and DOWN arrows to adjust the setting and press OK once again to
save the setting.
NOTE: To customize charge parameters, BATT must be set to USER, under 4. CONTROL
PARAMETERS
NOTE: A Control Parameters table can be found under Technical Specifications for parameter
boundary limits.
Choose Gel, Sealed, Flooded or User battery
and modify the Amp-hours(Ah) if necessary.
Choose from 1-999 Ah.
VS2024BN
SN: 16 digit code
VS2024BN
Rate.Vol: 24V
Char.Cur: 20A
Disc.Cur: 20A
Test Operation
VS2024BN: ON
Battery Type
Sealed
Battery AH
200AH

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Temperature fluctuation can affect performance in
the system. Therefore, the purpose of temperature
compensation is to adjust the performance of the
system to keep the system functioning normally.
Choose from 0mV to -9mV
Choose between 12V, 24V or AUTO for rated
battery voltage.
Default parameters for over-voltage disconnect
and charge limit.
Default parameters for over-voltage reconnect
and equalization charge rate.
Default Parameters for Boost and Float Charge
Default parameters for Boost reconnection and
Low voltage reconnect
Default parameters for under voltage reconnect
and under voltage warning
Default parameters for low voltage disconnect and
the discharge limit.
Low Voltage Disconnect
11.1 V
Discharge Limit
10.6 V
Under Voltage Reconnect
12.2 V
Under Voltage Warning
12.0 V
Boost Reconnect
13.2 V
Low Voltage Reconnect
12.6
Boost Charge
14.4 V
Float Charge 13.8 V
Over Voltage Reconnect
15.0 V
Equalization Charge
14.6 V
Over Voltage Disconnect
16.0V
Charge Limit
15.0 V
Temp Comp. Coeff
-3mV/°C/2V
Rated Voltage
Auto