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TriStar MPPT 600V Operator’s Manual
56
Operation
Alarms
High Temperature Current Limit
The TriStar MPPT 600V will limit the solar input current if the heatsink temperature exceeds safe
limits. Solar charge current will be tapered back (to 0 amps if needed) to reduce the heatsink
temperature. The TriStar MPPT 600V is designed to operate at full rated current at the maximum
a
ient te
erat re
is a ar in icates t at t ere is ins ficient air o an t at t e eatsin
temperature is approaching unsafe limits. If the controller frequently reports this alarm condition,
correcti e action
st e ta en to ro i e etter air o or to re ocate t e contro er to a coo er
spot.
High Input Voltage Current Limit
As the power source's Voc approaches the maximum input voltage rating, the
TriStar MPPT 600V will limit battery charging current. The array Voc should never exceed the
600 Volt maximum input voltage.
Charging Current Limit
The array power exceeds the rating of the controller. This alarm indicates that the
TriStar MPPT 600V is limiting battery current to the maximum rating.
RTS Open
The Remote Temperature Sensor is not connected to the controller. Use of the RTS is
recommended for proper battery charging.
Heatsink Temperature Sensor Open / Shorted
The heatsink temperature sensor is damaged. Return the controller to an authorized Morningstar
dealer for service.
Battery Sense Out of Range / Disconnected
A battery sense wire is disconnected. Inspect the battery sense connections. This alarm is set
when the voltage at the battery sense voltage differs by more than 5 volts from the voltage at the
battery terminals.
Uncalibrated
The controller was not factory calibrated. Return the controller to an authorized Morningstar
dealer for service.
5.0 Networking and Communication
5.1 Introduction
The TriStar MPPT 600V provides several communication options. The TriStar MPPT 600V uses
a proprietary protocol for the MeterBus
TM
network and the non-proprietary open standard MOD-
BUS
TM
and MODBUS TCP/IP
TM
protocols for RS-232, EIA-485, and Ethernet networks. Addition-
ally, HTTP, SMTP, and SNMP are supported for web page, email, and network message support.
Morningstar’s MSView
TM
PC software provides system monitoring and logging capabilities via
RS-232, EIA-485, and Ethernet. MSView
TM
PC software is available for free on our website at:
http://www.morningstarcorp.com.
Further, hardware and third party software that supports the MODBUS
TM
protocol can also be
used to communicate with a TriStar MPPT 600V.
Multiple communication ports can be used simultaneously. For example, a TriStar MPPT 600V
may be connected to a MeterBus
TM
network for on-site system metering, connected to the inter-
net for remote monitoring, and connected to an EIA-485 network to bridge data from other con-
trollers in the system to an internet connection. Note that the RS-232 and EIA-485 connections
share hardware and therefore cannot be used simultaneously.
Table 5-1 below provides a summary of supported features for each communication interface.
MeterBus
RS-232
EIA-485
Ethernet
Display system/network data on a TriStar meter
●
Connect a TSMPPT to a Relay Driver or other MS Accessory
●
Collect data from multiple TSMPPT HV controllers on a network
●
●
●
View and log data with MSView
TM
PC Software
●
●
●
View logged data stored in the TriStar MPPT 600V internal memory
●
●
●
●
Update TriStar MPPT 600V firmware
●
Program custom settings
●
●
●
View data in a web browser
●
Email notification
●
Text Message Alerts
●
SNMP Alerts
●
Table 5-1. Communication summary