National Instruments RMX-4120 Safety & Installation Instructions

Also see for RMX-4120: User manual

Contents

6 | ni.com | RMX Programmable Power Supplies Safety Information & Installation GuideTurning the Power OnTurning the POWER Switch OnCaution Risk of electric shock. Regardless of whether load cables are connected tothe output terminals, be sure to attach the OUTPUT terminal cover before turning thePOWER switch on.Load CablesCaution Risk of fire. Use load cables whose capacity is adequate for the RMXprogrammable power supply’s rated output current. The output connector and itssurrounding area become hot. Use cables whose covers have heat resistance at 85 °Cand higher.Caution Risk of electric shock. Use the cable which has higher withstanding voltagethan the specified insulation voltage of the product to secure the double insulation orreinforced insulation.Connecting to the Output TerminalsCaution Risk of electric shock. Turn the POWER switch off before you touch theOUTPUT terminals. Even if you turn the output off or turn the POWER switch off,if the bleeder on/off setting (CF11) is set to “OFF,” the voltage that was present whenthe output was on will remain at the output terminals. Turn the bleeder circuit onbefore you touch the output terminals. Regardless of whether load cables areconnected to the output terminals, be sure to attach the OUTPUT terminal coverbefore turning the POWER switch on. Confirm that the voltage between any outputterminal and ground is lower than the isolation voltage of the RMX programmablepower supply.Figure 4. RMX-4125 Output Terminal- (negative) terminal + (positive) terminalChassis terminal