Renogy REGO RCC60REGO-US User manual

VERSION A0
MPPT Solar Charge Controller
REGO
12V 60A
USER MANUAL

02
Applicability
The user manual applies to the following product:
zREGO 12V 60A MPPT Solar Charge Controller (RCC60REGO)
Disclaimer
zRenogy makes no warranty as to the accuracy, sufficiency, or suitability of information in the
user manual because continuous product improvements are going to be made.
zRenogy assumes no responsibility or liability for losses or damages, whether direct, indirect,
consequential, or incidental, which might arise out of the use of information in the user
manual.
zRenogy is not responsible or liable for the failures, damages, or injuries resulting from repair
attempted by unqualified personnel or improper installation and operation.
zThe illustrations in the user manual are for demonstration purposes only. Details may appear
slightly different depending on product revision and market region.
zRenogy reserves the right to change the information in the user manual without notice.
Copyright
REGO 12V 60A MPPT Solar Charge Controller User Manual © 2022 Renogy. All rights reserved.
All information in the user manual is subject to copyright and other intellectual property rights
of Renogy and its licensors. The user manual may not be modified, reproduced, or copied, in
whole or in part, without the prior written permissions of Renogy and its licensors.
Trademarks
The following are trademarks or registered trademarks of Renogy in the United States and other
countries and regions:
RENOGY
All other trademarks in the user manual are the property of their respective owners and their
use herein does not imply sponsorship or endorsement of their products or services. The
unauthorized use of any trademark displayed in the user manual or on the product is strictly
prohibited.
Date and Revision
January 2022, Revision A0

03
Table of Contents
Important Safety Information .......................................................................................................05
Symbols Used .........................................................................................................................05
General Safety Information .....................................................................................................05
Overview......................................................................................................................................07
Introduction .............................................................................................................................07
Key Features ...........................................................................................................................07
Charging and Activation Logics ...................................................................................................08
MPPT Technology ...................................................................................................................08
Four Charging Stages .............................................................................................................09
Lithium Battery Activation ........................................................................................................11
Package Contents .......................................................................................................................12
Optional Accessories ...................................................................................................................13
Product Overview ........................................................................................................................14
Wiring Diagram ............................................................................................................................15
Recommended Cable and Fuse Sizing ......................................................................................16
Recommended Cable Sizing ...................................................................................................16
Recommended Fuse Sizing ...................................................................................................16
Preparation ..................................................................................................................................18
Components & Tools ...............................................................................................................18
Checking the Charge Controller ..............................................................................................21
Checking Battery .....................................................................................................................22
Checking Solar Panel ..............................................................................................................23
Charge Controller Wiring .............................................................................................................25
Battery Wiring ..............................................................................................................................27
Battery Scenario A: REGO Battery Kit ....................................................................................27
Battery Scenario B: Normal Battery Kit ...................................................................................31

04
Battery Indicator ......................................................................................................................32
Solar Panel Wiring .......................................................................................................................33
Mounting ......................................................................................................................................35
Temperature Sensor ...................................................................................................................36
Voltage Sensor (Optional) ...........................................................................................................37
Communication............................................................................................................................39
Inter-Device Communication ...................................................................................................39
Monitoring Device Communication .........................................................................................42
Operation ....................................................................................................................................47
Setting the Battery Type ..........................................................................................................47
Battery Charging Parameters ..................................................................................................49
User Mode ...............................................................................................................................50
LED Indicators .............................................................................................................................53
Troubleshooting ...........................................................................................................................54
Technical Specifications ..............................................................................................................55
MPPT 12V Conversion Efficiency ................................................................................................56
Dimensions ..................................................................................................................................57
Maintenance ................................................................................................................................58
Inspection ................................................................................................................................58
Cleaning ..................................................................................................................................58
Storage ....................................................................................................................................58
Emergency Responses ...............................................................................................................59
Fire ..........................................................................................................................................59
Flooding ..................................................................................................................................59
Smell .......................................................................................................................................59
Noise .......................................................................................................................................59
Technical Support ........................................................................................................................60

05
Important Safety Information
The user manual provides important installation, operation, and maintenance instructions for
REGO 12V 60A MPPT Solar Charge Controller (hereinafter referred to as charge controller).
Read the user manual carefully before installation and operation and save it for future reference.
Failure to observe the instructions or precautions in the user manual can result in electrical
shock, serious injury, or death, or can damage the charge controller, potentially rendering it
inoperable. The installation and service of the charge controller might require knowledge of
electricity and is recommended to be carried out by qualified personnel.
Symbols Used
The following symbols are used throughout the user manual to highlight important information:
WARNIN
G
Indicates a potentially dangerous condition which could result in
injury or death.
CAUTIO
N
Indicates a critical procedure for safe and proper installation and
operation.
NOT
E
Indicates an important step or tip for optimal performance.
INFO
Indicates that more information is available in other documents
relating to the subject.
General Safety Information
WARNIN
G
zRead all instructions and precautions in the user manual before installation.
zDo not puncture, drop, crush, penetrate, shake, strike, or step on the charge controller.
zDo not open, disassemble, repair, tamper with, or modify the components of the charge
controller.
zInstall the charge controller on a vertical surface indoors protected from direct sunlight, high
temperature, and water. Make sure there is good ventilation.
zKeep the charge controller away from heating equipment.
zDo not insert foreign objects into the charge controller.
zRisk of explosion! Never install the charge controller in a sealed enclosure with flooded
batteries! Do not install in a confined area where battery gases can accumulate.
zConfirm the polarities of the devices before connection. A reverse polarity contact
will result in abnormalities.
zRefer to the Recommended Cable and Fuse Sizing in this user manual, and select the
appropriate cables and fuses according to the usage.
zKeep the charge controller out of the reach of children.
zWear proper protective equipment and use insulated tools during installation and operation.
Important Safety Information
Symbols Used General Safety Information

06
Important Safety Information
zDo not touch the connector contacts while the charge controller is in operation.
zDisconnect all connectors from the charge controller before maintenance or cleaning.
zDo not dispose of the charge controller as household waste. Comply with local, state, and
federal laws and regulations and use recycling channels as required.
zIn the event of fire, use fire extinguishers suitable for electrical equipment.
zIf the charge controller is installed improperly on a boat, it may cause damage to the
corrosive agents of the boat. Please have the charge controller by a qualified electrician.
CAUTIO
N
zDo not expose the charge controller to flammable or harsh chemicals or vapors.
zEnsure that there is no water source including downspouts, sprinkles, or faucets above or
near the charge controller.
zEnsure that the battery pack is properly connected before installation.
Symbols Used General Safety Information

07
Overview
Overview
Introduction
REGO 12V 60A MPPT Solar Charge Controller can serve various off-grid solar systems. It
monitors the status of the battery in real time and prevents the battery from overcharge and
overdischarge. The newly added Battery Protection Unit (BPU) prevents fire accidents caused
by system failures, further guaranteeing the security of the whole off-grid system. In addition,
with the adoption of intelligent MPPT tracking algorithm, the charge controller can maximize the
energy from the solar panel to charge the battery.
The charge controller supports multi-stage charging to can provide precise charging services for
different types of batteries.
Key Features
zHigh-power Output
12V rated DC voltage with the output power up to 800W.
zMPPT Technology
Advanced MPPT technology with tracking efficiency up to 99% and peak conversion efficiency
of 98%.
zHigh Battery Compatibility
REGO 12V 60A MPPT Solar Charge Controller is compatible with AGM, sealed, flooded, gel,
lithium, and user-defined batteries.
zDiverse Battery Protection Mechanisms
Overcharge protection, overdischarge protection, reverse polarity protection, and open circuit
protection.
zMultiple Input Protection Features
Reverse polarity protection, overvoltage protection, short circuit protection, and reverse charging
protection at night of the solar panel.
zSupport for RV-C Protocol
Based on RV-C and Modbus protocols, the charge controller can meet various communication
needs.
Introduction Key Features

08
Charging and Activation Logics
MPPT Technology
Based on MPPT (Maximum Power Point Tracking) technology, the charge controller can
extract maximum power from the solar panel. With an automatic tracking algorithm, the MPPT
technology can track the voltage of the maximum power point that changes with weather
conditions, ensuring the harvest of the maximum power throughout the day.
zCurrent Boost
Generally, the charge controller will “boost” the current in the solar system. The power generated
in the solar panel is the same as the power delivered to the battery pack. Power is the product
of voltage (V) x amperage (A).
Therefore, assuming 100% efficiency:
Power In = Power Out
Volts In * Amps In = Volts out * Amps out
The efficiency of the charge controller is about 92% to 95%. As the maximum power point
voltage of the solar system is greater than the battery pack voltage, the potential difference is
proportional to the current boost. The voltage of the solar panel needs to be stepped down to a
rate at which the battery can be charged in a stable manner. Compared with traditional charge
controllers, the charge controller does not waste the stepped down voltage. It is entirely possible
to have the solar module input 8 amps of current into the charge controller, and have the charge
controller output 10 amps of current to the battery pack. The following shows a graphic point
about the output of MPPT technology.
10 15 17 10 15 17
Current vs.Voltage (12V System) Output Power (12V System)
Typical Battery
Voltage Range Traditional
Controller
Operating
Range
Maximum
Power Point
Maximum
Power Point
Current
Power
VoltageVoltage
zLimiting Effectiveness
High temperature is the natural enemy of solar panels. With the increase of ambient
temperature, the operating voltage (Vmp) of the solar panel decreases, which limits the power
generation of the solar panel. The charge controller encounters an inevitably decrease in
charging performance even with the MPPT technology. In this case, it is better to use solar
panels with higher nominal voltage, so that the battery can still get current boost even if the
voltage drops proportionally.
Charging and Activation Logics
MPPT Technology Four Charging Stages Lithium Battery Activation

09
Charging and Activation Logics
Four Charging Stages
REGO 12V 60A MPPT Solar Charge Controller has a four-stage battery charging algorithm for a
rapid, efficient, and safe battery charging. The stages include: Bulk Charge, Boost Charge, Float
Charge, and Equalization.
A
Time
Time
Charging
Current
Fast charging
B
Constant voltage charging
C
Floating charging
Boost charging voltage
Equalization charging voltage
Float charging voltage
Charging return voltage
Maximum
current
Constant pressure time
Cumulative time
(Range:10-600 min)
: 2h
: 2h
Battery
Voltage
zBulk Charge:
This algorithm is used for day to day charging. It uses 100% of available solar power to recharge
the battery and is equivalent to constant current. In this stage the battery voltage has not yet
reached constant voltage (Equalize or Boost), the controller operates in constant current mode,
delivering its maximum current to the batteries (MPPT Charging).
zConstant Charging:
When the battery reaches the constant voltage set point, the controller will start to operate in
constant charging mode, where it is no longer MPPT charging. The current will drop gradually.
This has two stages, equalize and boost and they are not carried out constantly in a full charge
process to avoid too much gas precipitation or overheating of the battery.
Boost Charge: Boost stage maintains a charge for 2 hours by default. The user can adjust the
constant time and preset value of boost per their demand.
zFloat Charge:
After the constant voltage stage, the controller will reduce the battery voltage to a oat voltage
set point. Once the battery is fully charged, there will be no more chemical reactions and all the
MPPT Technology Four Charging Stages Lithium Battery Activation

10
Charging and Activation Logics
charge current would turn into heat or gas. Because of this, the charge controller will reduce the
voltage charge to smaller quantity, while lightly charging the battery. The purpose for this is to
o󰀨set the power consumption while maintaining a full battery storage capacity. In the event that
a load drawn from the battery exceeds the charge current, the controller will no longer be able
to maintain the battery to a Float set point and the controller will end the oat charge stage and
refer back to bulk charging.
zEqualization:
Equalization is carried out every 30 days of the month. It is intentional overcharging of the
battery for a controlled period of time. Certain types of batteries benefit from periodic equalizing
charge, which can stir the electrolyte, balance battery voltage and complete chemical reaction.
Equalization charging increases the battery voltage, higher than the standard complement
voltage, which gasifies the battery electrolyte.
CAUTIO
N
zIt is recommended to use only non-sealed/vented/flooded/wet cell lead acid batteries in the
Equalization stage.
zDo not equalize VRLA type AGM/gel/lithium cell batteries unless permitted by battery
manufacturer.
WARNIN
G
zOnce Equalization is active in the battery charging, the charge controller will not exit this
stage unless there is a sufficient source of charging current from the solar panel. There
should be NO load on the batteries when in equalization charging.
zOvercharging and excessive gas precipitation may damage the battery plates and activate
material shedding on them. Too high of an Equalization charging or too long of one may
cause damage. Review the specific requirements of the battery used in the system carefully.
zEqualization may increase battery voltage to a level that damages to sensitive DC loads.
Ensure that allowable input voltages of all loads are greater than the set voltage during
Equalization charging.
MPPT Technology Four Charging Stages Lithium Battery Activation