Renogy RMS-DCDC-US User manual

Version 1.0
FOR DC-DC BATTERY CHARGER SERIES
MONITORING
SCREEN
RMS-DCDC

01
General Safety Information
This manual contains important installation and operation
instructions for the monitoring screen. Please observe these
instructions and keep them located near the monitoring screen for
further reference. The following symbols are used throughout the
manual to indicate potentially dangerous conditions or important
safety information.
Make sure all connections going into and from the DC-DC are
tight. There may be sparks when making connections,
therefore, make sure there are not flammable materials or
gases near installation.
DO NOT expose it to direct sunlight, rain, snow, moisture, or
liquids of any type.
Important Safety Instructions
Please save these instructions.
Indicates a potentially dangerous condition. Use
extreme caution when performing this task.
Indicates a critical procedure for the safe and proper
installation and operation of the monitoring screen.
Indicates a procedure or function that is important
to the safe and proper installation and operation of
the monitoring screen.
NOTE
CAUTION
WARNING
DO NOT puncture, drop, crush, burn, penetrate, or strike
the monitoring screen.
DO NOT open, dismantle, or modify the monitoring screen.
Installation Information
DO NOT attempt connecting the monitoring screen to other
DC-DC or systems.
The DC-DC are suitable for 12V Battery Banks ONLY.
Always make sure DC-DC is in OFF position and disconnect all
sources when working on any circuit associated with the DC-DC.

02
Table of Contents
Important Safety Instructions 01
General Information 04
Product Overview 05
Identification of Parts 05
Dimensions 06
Voltage Interface 18
Operation 14
Troubleshooting 31
Technical Specifications 35
LCD Icons 15
LCD Menu Overview 17
Kilowatt Interface 18
Current Interface 18
Temperature Interface 18
Working Mode 19
Parameter Setting 23
Set the Battery Type 23
Clear KWh to 0 28
Set Current Limiting 28
Change from Celsius to Fahrenheit 30
Installation 08

03
General Information
Plug and Play
Accurate Readings
The RMS-DCDC is a high precision meter designed for DC-DC
MPPT Series on board battery chargers. Featuring a backlit display
and flush-mountable, it is engineered for an aesthetically clean and
professional look inside vehicle cabins. Utilize the 4-key input to
navigate through the backlit LCD for system information, configure
charging parameters, as well as identify any error codes. The
RMS-DCDC is the perfect companion offering operator feedback
your 2-battery system and keeping up to date with important system
information.
Dual Battery Monitoring
Stay informed on the charging status of your house and auxiliary
battery and monitor overall system health.
Adjustable Parameters
Program your charger settings, volts, and amps directly through
the monitoring screen.
Precise tracking and monitoring ensure latest real-time system
information.
Simply connect an RJ45 directly to your DC-DC and let the
screen take care of the rest.
Key Features

04
Product Overview
LCD Screen
Page Up
Page Down
Previous Page
Enter
Front Cover Plate
Mounting Holes
RJ45 Communication Port
①
②
③
④
⑤
⑥
⑦
⑧
Identification of Parts
②① ③ ④ ⑤
RMS-DCDC
⑥⑦⑧

05
Dimensions
1.24in
0.8in
31.5mm
19.9mm
Dimensions have a tolerance of ±0.5mm
RMS-DCDC
110.0mm
4.3in
87.5mm
3.4in
2.8in
70.0mm
NOTE

06
Additional Components
RJ45 Communication Cable
You may use ethernet cables CAT5 or higher.
The RJ45 Communication Cable (5m/16.4ft) is used to connect the
monitoring screen to t power supply and data transmission.
Self-tapping Screws (4)
The Self-tapping Screws (M2.9x13) are used fix the monitoring
screen on the mounting surface.
NOTE

07
NOTE
Before installation, check to make sure the power is working
properly. Resolve any issues before installation of monitoring
screen and cable.
The following are recommendations for installation. There will be
multiple mounting methods depending on user’s applications.
Clearance of at least 2 inches (50 mm) behind the unit is recommend-
ed to allow for the bending radius of the RJ45 Communication Cable
that connects to the monitoring screen.
The RMS-DCDC requires a flush mount installation. The RMS-DC-
DC’s faceplate will be flush with the mounting surface and the
body of the meter.
Before the installation of the monitoring screen, it is recommended
to have the following tools available:
CAUTION
Installation
Before drilling, make sure there are no electrical component or
other obstacles that may interfere with installation on the other
side of the mounting surface.
WARNING
Preparation
Choosing an Installation Location
Pencil
Drill
Jigsaw
Phillips screwdriver

08
2. Use the monitoring screen as a template to mark the screw holes
and trace the cut-out area on the mounting surface with a pencil.
1. Remove the snap-fit Front Cover Plate from the monitoring
screen.
3. Cut out a rectangle area for the monitoring screen on the
mounting surface with a jigsaw. You may also use the cut out
dimension specified after Step 2.
5. Put the monitoring screen into the cut-out area and align the
mounting holes on the monitoring screen with the pre-drilled screw
holes.
6. Fix the monitoring screen on the mounting surface with the
included four self-tapping screws.
7. Re-attach the snap-fit Front Cover Plate to the monitoring
screen.
4. Pre-drill four screw holes on the mounting surface with a drill.
Mounting the Monitoring Screen
1

09
2
3