MT-30
Installation, Operation & Maintenance
06225-03H.doc
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AeroVironment, Inc
Fault Lights
(red) when a fault has been detected. The four lights are AC
Inverter Fault, DC Converter Fault, Utility Fault, and Operation
Fault. (Refer to Tables 5.1 and 5.2 in Section 5 of this manual to
determine the definition of any faults indicated.)
2.1.2 DC Converter Functions & Controls
The DC Converter monitors load connections, processes power from the
Intermediate DC Bus for the load, and provides a local control interface for the
user. All DC converter configurations can be set either via the ROS computer or
manually through the front panel.
The DC Converter is composed of two separately controllable converters,
converter A and converter B which each have their own current range and
accuracy characteristics. Each converter also has its own set of front panel
meters, mode select switches and output terminals.
The converter has the ability to operate in two different
configurations
:
Independent Configuration
Two loads can be connected and separately controlled.
Parallel Configuration
The output from the converter (A) can be set up to provide the combined current
capability from Channel A and Channel B but the same voltage limitation as the
Independent configuration. This configuration is called Parallel because
internally the two converter circuits are connected in parallel to provide higher
current capability.
Safety Features
The DC Converter incorporates
safety features
which minimize the possibility
of an improperly connected load, or hazardous voltage exposure. The DC
Converter monitors internal switches, which indicate where load connectors are
inserted, and verifies that the load connections and the chosen configuration are
compatible.
If the load configuration requested does not match the load connections, the
requested configuration will not be acknowledged. Additionally, the output
terminals will automatically be disconnected, using internal contactors, if one of
the connectors is pulled from the unit.
The internal contactors remain disconnected during load configuration or
reconfiguration, and will also be disconnected in the event of a load fault
condition (e.g., a short circuit) or an unsafe operating condition (e.g., a voltage
higher than the user-defined limit).
The following displays and controls are operable in manual mode or through the
ROS. The MT-30 starts up with both Channel A and Channel B in manual
mode. Both the Remote A and the Remote B buttons are unlit in this mode. To
toggle to remote operation, press the button for the corresponding channel.
Ensure that you have the ROS computer operational and connected to the MT-30
and that the remote button lights up (yellow).
