Morningstar TriStar Controller RD-1 Relay Driver


Detailed Description:

Morningstar’s Relay Driver is a logic module which provides high level system control functions such as high/low voltage alarms, load control and generator start. The product controls four independent relay driver outputs by reading digital data inputs from Morningstar’s TriStar controller or by reading battery voltage when used in systems with other controllers.

Key Features and Benefits:

Cost Effective
The four channels provide up to four high level system control functions at a lower cost compared to other alarm and generator start packages.
High Reliability
Each channel has complete electronic protections for high reliability.
The system designer may choose the exact relay needed for each application including a wide range of current ratings and solid state, mechanical or mercury displacement relays.
Fully Programmable
It is easy to program the Relay Driver with the included PC software via serial RS-232 port connection. Data is stored in non-volatile memory. The Relay Driver is pre-programmed with four commonly used settings.
Advanced Generator Control
Provides flexible parameters to control one, two or three-wire generator schemes and complete control of preheat, crank, ignition and cool-down.
Industrial Design
Each relay driver output may be controlled directly by MODBUS commands via the RS-232 for use with PLCs and other industrial hardware. Mounts to a DIN rail or a flat surface. LED Indicators Displays power and status of each channel as well as faults and data sampling intervals.
Typical Functions

High and Low Alarm Contacts for Industrial Applications
Load Control Including High Power Applications (pumps and large motors)
Temperature Controlled Settings for Battery Fans or Cooling Vents
Generator Start Functions
Auxiliary AC Backup Charge Control
MSView PC Software

MSView is free PC software that can be downloaded from the Morningstar web site. The MAC is not supported.


MSView is a PC software utility that allows a PC to connect to supported Morningstar products. It provides real-time data display and an easy to use interface with integrated help menus. MSView also features several setup and configuration wizards for the TriStar and Relay Driver.


Product wizards allow easy setup
Intuitive directory tree organization of variables
Data display elements with easy drag-and-drop functionality
Window-sensitive help
Relay Driver

Program/Update channel configurations
System Requirements:

Intel 386 or higher (or equivalent)
Windows 95/98/2000/XP
8mb ram
1 RS-232 serial port
1 RS-232 serial cable

Firmware Loader


Morningstar's Firmware Loader is a PC software utility that uploads new firmware into Morningstar Products. Firmware updates may add new features and/or include functionality changes.


Easy to use wizard guides the user through the update steps
Provides upload status bar graph
Confirmation for successful upload or error

This items has to ship freight:

Please call 1-562.431.4014 for shipping quote, or place order and you will be
contacted shortly with a shipping quote before you are charged.

Add to Cart:

  • Model: RD1
  • Manufactured by: MorningStar

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