National Instruments RMX-4120 User Manual page 6

Contents
Measured Value Display, Setting Display, and Set OVP/OCP Display................... 2-3
Fine Adjustment................................................................................................ 2-3
Output Operations............................................................................................................. 2-3
Output State at Power-up.......................................................................................... 2-4
Operation Overview.......................................................................................................... 2-4
CV Power Supply and CC Power Supply......................................................................... 2-7
Crossover Point................................................................................................. 2-8
CV Mode and CC Mode Operation Examples ......................................................... 2-8
Example 1 ......................................................................................................... 2-8
Example 2 ......................................................................................................... 2-8
Using the RMX Programmable Power Supplies as a CV or CC Power Supply .............. 2-9
Protection Functions and Alarms...................................................................................... 2-11
Alarm Occurrence and Clearing Alarms .................................................................. 2-12
Alarm Occurrence............................................................................................. 2-12
Clearing Alarms................................................................................................ 2-13
Alarm Signal ..................................................................................................... 2-13
Protection Function Activation ................................................................................. 2-14
Setting limitation functions............................................................................... 2-14
CONFIG Settings.............................................................................................................. 2-20
Specifying CF01 to CF36, CF 41 to CF52 CONFIG Settings.......................... 2-24
Specifying CF00/CF40 CONFIG Settings ....................................................... 2-25
CONFIG Parameter Details .............................................................................. 2-25
Preset Memory Function................................................................................................... 2-39
Saving Settings to Preset Memory............................................................................ 2-39
Recalling Preset Memory Entries ............................................................................. 2-40
Locking Panel Operations (Key Lock) ............................................................................. 2-41
Bleeder On/Off Feature .................................................................................................... 2-41
Fall Time................................................................................................................... 2-44
Switching from Remote Mode to Local Mode ................................................................. 2-44
Factory Default Settings (Initialization) ........................................................................... 2-45
Chapter 3
External Control
Overview........................................................................................................................... 3-1
About the J1 Connector .................................................................................................... 3-1
Attaching the J1 Cable Core ..................................................................................... 3-2
About the J2 Connector .................................................................................................... 3-5
Output Terminal Insulation............................................................................................... 3-7
When the Output Terminal is Not Grounded (Floating)........................................... 3-7
When the Output Terminal is Grounded................................................................... 3-9
Cautions When Controlling the Output with an External Voltage (Vext)................ 3-11
Controlling the Output Voltage ........................................................................................ 3-12
Control Using an External Voltage (Vext) ............................................................... 3-12
External Voltage (Vext) Connection ................................................................ 3-13
Control Using an External Resistance (Rext) ........................................................... 3-13
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