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54
Operation
Alarms
High Temperature Current Limit
The TS-MPPT-600V-TR 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 TS-MPPT-600V-TR is designed to operate at full rated current at the maximum
ambient temperature. This alarm indicates that there is insufficient airflow and that the heatsink
temperature is approaching unsafe limits. If the controller frequently reports this alarm condition,
corrective action must be taken to provide better air flow or to relocate the controller to a cooler
spot.
High Input Voltage Current Limit
As the solar array Voc approaches the maximum input voltage rating, the TS-MPPT-600V-TR 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
TS-MPPT-600V-TR 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.