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RMX-4123
National Instruments RMX-4123 User Manual
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RMX
RMX Programmable Power Supplies
User Manual
RMX-4120
RMX-4121
RMX-4122
RMX-4123
RMX-4124
RMX-4125
RMX-4126
RMX-4127
RMX Programmable Power Supplies User Manual
February 2017
375744C-01
2
Table of Contents
Default Chapter
2
Safety Guidelines
2
Legal Information
3
Table of Contents
5
Chapter 1
9
Installation and Preparation
9
Attaching the Connector Cover
9
Connecting the Power Cord
9
RMX-4120/4121/4122/4123 (750 W Models)
10
Necessary Cable
10
RMX-4124/4125/4126/4127 (1500 W Models)
10
Necessary Cable
11
Switchboard Breaker Requirements
11
Connection Procedure
12
Turning the Power on
14
Turning the POWER Switch on
14
Inrush Current
15
Turning the POWER Switch off
15
Rack Mounting
16
Load Considerations
16
Loads with Peak Current or Pulse-Shaped Current
16
Loads that Generate Reverse Current to the Power Supply
17
Loads with Accumulated Energy
17
Load Cables
18
Protecting against Noise
19
Cabling Considerations When Using Remote Sensing
19
Connecting to the Output Terminals
20
Attaching the Output Terminal Cover
23
Sensing
25
Local Sensing
27
Remote Sensing
27
Connecting an Electrolytic Capacitor Across the Load
30
Inserting a Mechanical Switch between the RMX Programmable Power Supply and the Load
30
Accessories
31
Parallel Operation Signal Cable
31
Chapter 2
32
Basic Functions
32
Measured Value Display and Setting Display
32
Measured Value Display
32
Power Display
32
Setting Display
33
Overvoltage Protection and Overcurrent Protection Setting Display
33
System Configuration Setting Display
33
Panel Operations
34
Measured Value Display, Setting Display, and Set OVP/OCP Display
34
Fine Adjustment
34
Output Operations
34
Output State at Power-Up
35
Operation Overview
35
CV Power Supply and CC Power Supply
38
Crossover Point
39
CV Mode and CC Mode Operation Examples
39
Example 1
39
Example 2
39
Using the RMX Programmable Power Supplies as a CV or CC Power Supply
40
Protection Functions and Alarms
42
Alarm Occurrence and Clearing Alarms
43
Alarm Occurrence
43
Clearing Alarms
44
Alarm Signal
44
Protection Function Activation
45
Setting Limitation Functions
45
CONFIG Settings
51
Specifying CF01 to CF36, CF 41 to CF52 CONFIG Settings
55
Specifying CF00/CF40 CONFIG Settings
56
CONFIG Parameter Details
56
Preset Memory Function
70
Saving Settings to Preset Memory
70
Recalling Preset Memory Entries
71
Locking Panel Operations (Key Lock)
72
Bleeder On/Off Feature
72
Fall Time
75
Switching from Remote Mode to Local Mode
75
Factory Default Settings (Initialization)
76
Chapter 3
78
External Control
78
Overview
78
About the J1 Connector
78
Attaching the J1 Cable Core
79
About the J2 Connector
82
Output Terminal Insulation
84
When the Output Terminal Is Not Grounded (Floating)
84
When the Output Terminal Is Grounded
86
Cautions When Controlling the Output with an External Voltage (Vext)
88
Controlling the Output Voltage
89
Control Using an External Voltage (Vext)
89
External Voltage (Vext) Connection
90
Control Using an External Resistance (Rext)
90
External Resistance (Rext) Connection
91
Controlling the Output Current
91
Control Using an External Voltage (Vext)
92
Control Using an External Resistance (Rext)
93
External Resistance (Rext) Connection
93
Controlling the Output on and off States
94
External Contact Connection
95
Long-Distance Wiring
95
Controlling Output Shutdown
96
Output Shutdown Connection
96
Long-Distance Wiring
97
Controlling the Clearing of Alarms
97
Alarm Clear Connection
98
Long-Distance Wiring
99
External Monitoring
99
Monitor Output Rating
99
External Monitoring of the Operation Status
100
Chapter 4
101
Parallel/Series Operation
101
Master-Slave Parallel Operation
101
Features of the RMX Programmable Power Supplies During Master-Slave Parallel Operation
101
Voltage Display and Current Display
101
Connection (Master-Slave Parallel Operation)
103
Connecting the Signal Cables (Parallel Operation)
103
Connecting the Load (Parallel Operation)
104
Settings (Master-Slave Parallel Operation)
106
Setting the Master Unit, the Slave Units, and the Number of Units in Parallel Operation (Including the Master Unit)
106
Setting the Voltage and Current
106
Setting the Overvoltage Protection (OVP) and Overcurrent Protection (OCP) of the Master Unit
106
Starting Master-Slave Parallel Operation
107
Turning Power on
107
Turning Power off
107
Series Operation
108
Features of the RMX Programmable Power Supplies During Series Operation
108
Voltage Display and Current Display
108
External Control
108
External Monitoring
108
Remote Sensing
109
Alarm
110
Connection (Series Operation)
110
Connecting the Load (Series Operation)
110
Settings (Series Operation)
111
Setting the Voltage and Current
111
Setting the Overvoltage Protection (OVP) and Overcurrent Protection (OCP)
111
Starting (Series Operation)
111
Turning the Power on and off
111
Turning the Output on and off
111
Chapter 5
112
Maintenance
112
Calibration Overview
112
Calibration Procedure
112
Installation
112
Launch
112
Calibration Items
113
Basic Instructions
114
Save Calibration
114
Backup Calibration Data to a XML File
114
Send Calibration Data from a XML File
114
Revision History
114
System Requirements
115
Hardware Requirements
115
Environment
115
Cleaning
115
Connection
116
Appendix A Specifications
117
Electromagnetic Compatibility
138
Online Product Certification
139
Environmental Management
139
Appendix B
140
Troubleshooting
140
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National Instruments RMX-4123 Specifications
General
Brand
National Instruments
Model
RMX-4123
Category
Power Supply
Language
English
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