Installation Guide

2.0
MORNINGSTAR CORPORATION
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2.0 GENERAL INFORMATION
2.3 Optional Accessories
The following accessories are available for purchase
separately from your authorized Morningstar dealer.
Remote Temperature Sensor (Model: RTS)
The RTS measures battery temperature for accurate
temperature compensation and is recommended when
the ambient battery temperature differs from the ambient
controller temperature by +/- 5 degrees C or more. An RTS
can be attached to the SunSaver MPPT at any time. The
SunSaver MPPT will automatically use the RTS for battery
temperature compensation when installed. The standard
cable length is 33 ft (10 m), and can be extended to 100 ft
(30 m) if required. Installation instructions are provided with
the RTS.
NOTE: The use of a Remote Temperature Sensor is
strongly recommended. Controller location, air ow, and
system power can drastically affect the local temperature
sensor reading. A RTS will provide optimal charging
performance.
Remote Meter (Model: RM-1)
The digital Remote Meter displays system operating
information, error indications, and a self-diagnostic read-out.
Information is displayed on a backlit 4-digit custom LCD
display. The large numerical display and icons are easy to
read and large buttons make navigating the meter menus
easy. Additionally, a status LED and three (3) battery SOC
LEDs provide system status at a glance.
The meter can be ush-mounted in a wall or surface
mounted using the mounting frame (included). The RM-1 is
supplied with 33 ft (10.0 m) of cable, a mounting frame, and
mounting screws. The RM-1 connects to the RJ- 11 meter
port on the SunSaver MPPT.
PC MeterBus Adapter
TM
(Model: MSC)
The MSC converts the MeterBus RJ-11 electrical interface
to an isolated standard RS-232 interface which enables
communication between the SunSaver MPPT and a
personal computer (PC). The MSC (or UMC-1) is required
for programming custom charging set-points, and for viewing
logged data. See Sections 4.7 - Programming Custom
Set-points, and 4.8 - Data-logging, for details
Ethernet MeterBus Converter (EMC-1)
This product is an Ethernet gateway that provides web
monitoring services, a Modbus TCP/IP server, and a local
web page server. End users can collect information about
their off-grid PV system remotely. The EMC-1 supports all
products with MeterBus ports by bridging MODBUS TCP/IP
requests to serve LiveView pages for each product.
USB Communications Adapter (UMC-1)
A modular unit that uses a USB-B plug, usually from a
USB A-B computer cable, and an RJ-11 plug to connect with
a Morningstar controller’s MeterBus port, for monitoring and
programming using MSView PC software.