14
NATIONAL
INSTRUMENTS
1.2.4 Multiple Output Power System
The RMX-410x Series power supplies series can be configured into a programmable power system
of up to 31 units using the built-in LAN, USB or RS232/RS485 communication port in the power
supply and the RS485 linking cable provided with each power supply.
In a LAN system, each power supply can be controlled using the LAN controller (installed).
1.2.5 Control via the USB or RS232/485 Communication Ports
The following parameters can be programmed via the serial communication port:
•
Output voltage setting.
•
Output current setting.
•
Output voltage measurement.
•
Output current measurement.
•
Output on/off control.
•
Foldback protection setting.
•
Over-voltage protection setting and readback.
•
Under-Voltage protection setting and readback.
•
Under-Voltage limit setting and read back.
•
Power-supply start up mode (last setting or safe mode).
1.2.6 Analog Voltage Programming and Monitoring
Analog inputs and outputs are provided at the rear panel for analog control of the power supply.
The output voltage and the current limit can be programmed by analog voltage or by resistor,
and can be monitored by analog voltage. The power supply output can be remotely set to On
or Off and analog signals monitor the proper operation of the power supply and the mode of
operation (CV/CC).
1.2.7 Parallel Operation
Up to six RMX-410x Series power supplies of the same output voltage and current rating can be
paralleled in master-slave configuration with automatic current sharing to increase available power.
1.2.8 Output Connections
Output connections are made to rear panel bus-bars. Either the positive or negative terminal
may be grounded or the output may be floated. The power supplies shall not float outputs more
than +/- 100VDC above / below chassis ground. Contact factory for assistance with higher float
voltage applications.
Local or remote sense may be used. In remote sense, the voltage drop on the load wires should
be minimized. Refer to the specifications for the maximum voltage drop value.
1.2.9 Cooling and Mechanical Construction
The RMX-410x Series is cooled by an internal fan. At installation, care must be taken to allow
free air flow into the power supply via the front panel, and out of the power supply via the rear
panel. The RMX-410x Series power supply is a compact and lightweight unit which allows for easy
installation and gives a space saving solution for customer applications.
Summary of Contents for RMX-410 Series
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