©2000 Xantrex Technology Inc.
Features
The C-Series features include over-temperature protection, electronic over-
current protection, and automatic battery temperature compensation.
Over-Temperature Protection
The temperature of the controllers transistors is continuously monitored.
This protects the charge controller from damage in high temperature
environments. If excessive temperatures are detected while operating in
charge or diversion control mode, the controllers transistors are rapidly turned
off and on to reduce the charge rate. This will reduce the transistor
temperature.
As a load controller, the load is disconnected before the transistors reach
an excessive temperature. Once the temperature has dropped, the loads are
reconnected. When the over-temperature protection system has caused the
controller to shutdown, the status LED will be orange and will blink fast (about
once a second). This is the same indication shown during an over-current
condition.
Electronic Over-Current Protection
During operation, the C-Series controllers continuously monitor the current
flowing through it. If the current exceeds 85 amps, the transistor switches are
opened, stopping the flow of electricity. The detection circuitry is faster than
breakers or fuses, and they will not trip or blow when a fault occurs. When
the over-current protection system is activated, the status LED will indicate
orange and will blink fast (about once a second). This is the same indication as
produced by an over temperature condition.
The C-Series controllers automatically resets the over-current protection
system every 6 minutes. If an overload or short circuit is still present, the
controller will shut off and wait another 6 minutes. This will occur continuously
until the problem is corrected.
The reset switch on the right side of the controller allows the user to
manually reconnect the PV array or DC loads after an over-current condition
occurs. Hold the reset switch for 5 seconds to return to normal operation. If
the controller is unable to restart, check the wiring and reduce the loads
connected. There may be a delay after manually pressing the reset switch
before reconnecting the PV array.
The shunt used to measure the current flow in the C-Series is located in
the positive conductor of the circuit allowing greater flexibility in system
grounding. The negative terminals are all common to one another.
2.0 FEATURES
5
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