NEP – SERIES
Contents
1. each setting To run the Timed Program cycle 8 9 Push Button 4 to Output ON position check display to confirm P9499 Push Button 4 to Output ON position p kk p eo Press the Voltage Knob to start the cycle runs The power supply will return to Normal Mode once the set cycles have completed the operation Selective running of P1 P2 P3 with Timed Cycle Program 1 The cycle run will skip any Preset with timer set to zero Example 1 If you only want to run P1 and P2 then set the time t3 of P3 set to 0 Example 2 If want to run P3 only then set the time t1 and t2 of P1 and P2 S 0 2 During a cycle run the preset in operation and the Cycle Icon A are flashing together 3 If all the preset timers t1 2 3 are set to zero then only the Cycle Icon is flashing This serves as a warning of wrong setting of 3 preset timers PRESET UO Icon Cycle running is flashing Remarks A If the number of cycle is set at zero then the unit will run infinite cycles B To exit from the Timed Presets Cycle Program during operation or the setting with P1 P2 P3 and number of cycles just press the Voltage Knob for 5 seconds C If during any of the setting of the Timed Presets amp Cycle Program the setting operation stops for more than one minute the unit will return to normal operation D Previous setting time period values of P1 P2 and P3 are stored after2. the cycle operation exit cycle run E The values of both the Presets and the Timed Presets are retained in the unit even after the power supply is switched off F The cycle number will not be retained after the power supply is switched off or after the preset runs completed VI Setting the Output Enable Disable at Power U The power supply has been factory preset with Output Power Off when unit is powered up This default setting can be changed to Output Power On when unit is powered up Original Default Setting Press and hold Button 4 To change output Power ON when you switch on the power supply at next power up POWER And then turn on the power switch Power 5 Vil Features One main adjustable output with 3 user presets of V amp I Three independent user presets Programming of timer and auto cycling of preset in sequence Rotary encoder tuning of V amp I Output On Off switch with status indication Large LCD display for V amp I Presets CC CV status of main and aux outputs and Aux outputs and faults Constant current can be set without shorting Two Aux snap on outputs of 5V and 12V with status indication LCD ICONS DISPLAY DESCRIPTION Dre Poms J 1 5Vdc 500mA and Aux 2 12Vdc 500mA are in good order PoR E PON Aux 2 Read Aux 1 voltage is out of range of 4 6 5 4Vdc or in abnormal l y state Aux 2 is in good order Nikt R a Aux 2 voltage is out o
3. 5 0V Votage 5 0V Current 5 0A Current 2 8A Preset 2 Votage 10 0V Votage 10 0V Current 5 0A Current 2 8A Preset 3 Votage 15 0V Votage 15 0V Current 5 0A Current 2 8A IX Specifications Models NEP 6185 NEP 6303 Protection Over Voltage Protection Vout 1V when Vout lt 5V Vout 1V when Vout lt 5V Main Output Vout 1 5V when Vout 1 5V when 5 1V sVout lt 10V with lt 0 2sec 5 1V sVout lt 10V with lt 0 2sec 18 22 at tracking 18 22 at tracking 10 1V lt Vout lt 19V 10 1V lt Vout lt 33V Short Circuit or Over Load Yes Over Temperature 100 C 100 C Meter Accuracy Voltage Meter Accuracy VS2V 1 4 Digits Voltage Meter Accuracy V gt 2V 1 3 Digits Current Meter Accuracy I lt 1A 1 4 Digits Voltage Meter Accuracy I gt 1A 1 3 Digits LCD Indications Voltage and Current C C And C V Aux 1 and 2 Status Output ON OFF 3 User Defined V amp Presets Running the Cycled Program Fault Indication OVP Over Voltage OCP Over Current or Load OTP Over Temperature Presets Cycle Programming Max Preset time 999 seconds Max Preset Cycles 999 Times or infinite cycles 0 Output Terminals Standard binding pole screw type or safety jack type Approvals CE EMC EN 55011 EN 61000 LVD EN 61010 Fuse 2A x 1 Slow Cooling System Variable speed the
4. B Second group of voltage current and time Setting the 3 Presets The 3 Presets must be set in the order of Preset 1 Preset 2 Preset 3 To initiate the setting mode for the Presets first press Voltage Knob then quickly press the Current Knob 1 Press the Voltage Knob and then press the Current Knob Icon 1 is flashing to show ready for setting domkean VOLTAGE OUTPUT reser SIGS gt N Icon 1 is flashing AN Ser 2 Adjust Voltage Knob for voltage value and Current Knob for current value 3 When Icon 1 is flashing still press the Voltage Knob then the current Knobs to confirm Preset 1 new settings and Icon 2 will start flashing to indicate Preset 2 is ready for setting o 320e m OUTPUT Aux 1 Ready Aux 2 Ready PreseT MOCO Icon 2 is flashing 4 Adjust Voltage Knob and Current Knob accordingly and press Voltage then Current Knobs to confirm Preset 2 new settings and Icon 3 will start flashing to indicate Preset 3 is ready for setting 4J20 280 OUTPUT preset OOGOS gt Icon 3 is flashing onan er 5 Adjust Voltage and Current as before and press Voltage and Current Knobs to confirm Preset 3 new settings 6 All the new settings of the three Presets are now completed And there is no flashing of anyone of the P1 P2 or P3 320 280 preset HOSS VOLTAGE Recalling the Presets 1 Before using this function mak
5. NEP SERIES User Manual BBB BBA Gewese Cer cesses Sees preset DOGOS REV O 2011 08 7673 6185 0000 Introduction This unit is a Micro Processor controlled DC linear Power Supply with a total 9OW output power with adjustable constant current function There are 3 user defined presets of voltage and current recall and 3 programmable timed presets for cyclical application An adjustable main output and two Aux snap on outputs of 5V and 12V ll Explanation of Panels A FRONT PANEL r A ra Jy ar T Ty 7e a lt if MAh S eee Se 2 V wee 2 ae 6 a 2 A r OUTPUT 5 PUSH TO PRESET Aux 1 Ready Aux 2 Ready preser MOOOO amen ZN NIJ 7x D i MAIN OUTPUT v Cc lt I j f o 3 D fi m o Sye n 4 a A 1 LCD display Indicates output voltage amp current presets CC CV status of main auxiliary outputs output On OFF running the Cycled Program and faults 2 Output Voltage Control knob Adjusts and sets the voltage value preset values and modes setting 3 Output Current Control knob Adjusts and sets the current value preset values and modes setting 4 Output On Off push button 5 Power On Off switch 6 12V clip on output 7 5V clip on output 8 Output terminal Red Positive polarity
6. and moves to the next lot of Timed Presets When the power supply is in cycle operation the cycle icon tA flashes with the time preset in operation Setting the Timed Presets 1 Push Button 4 to Output OFF position check display to confirm T PUSH ON PUSH OFF 2 Press and hold the voltage knob for about 5 seconds to enter into the setting mode with flashing Preset Icon as shown below 3 Use voltage knob to adjust voltage for U1 press voltage knob to confirm new setting iE OUTPUT Aux 2 Aux 2 Ready PRESET MH OOO OFF Icon PRESET is flashing PUSH TO PRESET 4 Use current knob to adjust current for A1 press current knob to confirm new setting N Hi COL n TEE Icon PRESET is flashing PAH Ser 5 Use voltage knob to adjust time duration in seconds for t1 press voltage knob to confirm new settings VOLTAGE m ILI Aux 1 Ready Aux 2 Ready preset OOOO OFF icon PRESET is flashing 6 Repeat above steps for P2 and P3 7 Toset the number of cycles After t3 of P3 has been set and confirmed the P icon will then appears and ready for setting of number of cycles Adjust the voltage knob to set the number of cycles from 1 to 999 EN Icon PRESET is flashing PUSH PRESET To double check the Timed Program Cycle Settings To Check the settings of Timed Presets before cycle run starts Just repeat procedure from 1 to 5 and take note of
7. e sure the main output has been switched off by the Push Button 4 VOLTAGE rirt Furry LILI v Litt Lt a TED e gee Push Button 4 to Output OFF position PUSH ON PUSH OFF 2 Give a quick press to Voltage Knob then the Current Knob to get Preset flashing P1 Check the displayed values of voltage and current accordingly 3 Repeat the above to get to Preset P2 then P3 4 Quick press of Voltage and Current Knobs at P3 will exit from the Preset Mode to normal operation mode N at which has no flashing Presets Icon NORMAL MODE N P1 P2 P3 N NORMAL MODE P1 P2 P3 N NORMAL MODE Quick press to Voltage Knob then Current Knob Warning Avoid turning action on the knobs while pressing otherwise the set value will be changed Setting the Timed Presets amp running the Cycled Program BBB BBA nispay Ab P i ag First Timed Preset Voltage npp First Timed Preset Current First Timed Preset run time in seconds F i li Second Timed Preset Voltage eop i o Second Timed Preset Current Second Timed Preset run time in seconds Third Timed Preset Voltage RJ ae Third Timed Preset Current Third Timed Preset run time in seconds Number Of Cycle Running Remarks The three Timed Presets share the same Icon of the single V amp Presets But they have run time settings and a cycle setting The power supply can thus be programmed to operate from one Timed Preset which runs for a set time period
8. f range of 11 5Vdc 12 5Vdc or in l y abnormal state Aux 1 is in good order VIII Protections 1 2 3 4 Over current to the output Short circuit or over load Over voltage to the output Over temperature to the unit IX Specifications Models NEP 6185 NEP 6303 Output Voltage Coverage Range 0 5 18V 0 5 32V Output Voltage Control Rotary Encoder System with Fine amp Coarse tuning Output Current Coverage Range 0 5A 0 2 8A Output Current Control Rotary Encoder System with Fine amp Coarse tuning Voltage Regulation Ripple amp Noise r m s Voltage lt 6mV Load Regulation lt 15mV 0 100 Load Line Regulation 5 lt 15mV Setting Accuracy 0 2 0 15 V Voltage Resolution 0 1V Current Regulation Ripple amp Noise r m s Current lt 10mA Load Regulation lt 30mA 10 90 Rated Voltage Line Regulation 5 Variation lt 30mA Setting Accuracy 0 3 0 02 V Current Resolution 0 01A Input Voltage Input Voltage 230VAC 50Hz 120VAC 60Hz or on request No Load Input Current 230VAC lt 200mA Full Load Input Current lt 0 9A 230VAC Auxiliary Output Fixed Output 1 with 500mA 5 0Vdc Continuous Current 0 5A Fixed Output 2 with 500mA 12 0Vdc Continuous Current 0 5A Factory Preset Sefault Setting Preset 1 Votage
9. output terminal Output terminal Black Negative polarity output terminal A Rear Panel AC input socket with fuse inside B Cooling Fan Air Intake Grille 7 NS 2 Oo IV oS o gt Safety Precautions Do not place anything on the top of unit Allow at least 50 mm free space on both side of unit for cooling Do not place the unit in high humid and dusty environment Do not use the unit for the equipment that requires higher current ratings than the unit is designed for otherwise damage could occur to the unit Do not replace the fuse before ceasing the problems use same fuse rating Never touch the power supply when your hand is wet Never remove the metal cover without unplugging of AC mains Never operate a damaged unit Indoor use only Connection and Operation Check the input rating conforms with your local supply Turn OFF the unit and the equipment Connect the equipment to the unit Positive polarity to Red and negative polarity to Black Turn ON the unit first and then Turn ON the equipment When an operation is finished turn OFF the equipment first and then turn OFF the unit V Instruction For User Preset And Cycle Operation preset DHIQDBENO ICONS DESCRIPTION PRESET Preset functions to the values of voltage current time and running cycles First group of voltage current and time Third group of voltage current and time Cycle running
10. rmally control fan 0 to full speed Dimensions WxHxD 151 x 132 x 280 mm Weight 5 4 Kgs All values are based on the Standard ambient Temperature 25 C and Pressure 0 1Mpa SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE
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