Manual - English
Contents
1. ee External Timed Program Urteel Preset Memory Data Log Setting Step Voltage Current Minute Second Output On Voltage 12 07 ll Current 5 004 e 1 05 0 2 00 oo 10 2 10 0 2 00 oo 10 V SETTING 3 15 0 2 00 m 10 V const 20 4 np Dm m a0 ei gt 5 0 0 0 00 oo o0 M A ooo04 3 np 0 00 Dm o0 i 7 nn 0 00 o0 mp 8 0 0 0 00 oo D 1S W S og 0 00 D o0 Je 10 0 0 0 00 oo 00 BEE m d 0 00 00 00 12 oo 0 00 oo 00 E DU 0 00 oo D mo w B Hga 14 ao 0 00 D o Jl Table Name lnii d 15 ao nm a0 o 7 16 oo 0 00 oo 00 Table Description 17 op om m 00 18 0 0 0 00 oo D Running Cycle it Run Clear Table Description Masi ELEM Maat 6 804 Now Sampling 38 UYL 60 5V UCL E ve DE 4 External Timed Program is completely controlled by PC PC counts the time and changes voltage and current of power supply Select External Timed Program tap to switch to the External Timed Program Page Select number of steps for the program Enter the number of steps in the field of No of Rows and press Enter Maximum 20 Steps The operation principle of Saving Exporting Filing Deleting and Printing are the same as the Data Log function Clear Table Delete all data on the Display Table to ready for new data entry Run To run the timed program Enter the number of desired running cycles here 0 means infinity You can enter up to 999 running cycles C Internal Preset Memory2. Rating 60V 5A _ gp Description External Timed Progran Intemal Preset Memor Data Log Setting Voltage 10 0 zi Current 2 004 ei D6 A 2004 BE DUTPUT o o Ges Si PHG e Table Name Untitle e Table Description Set Read Fro PS Clear Table Description Man EDD Mat 6 804 Now Sampling 38 IM 6O 5V UCL 6 84 Wer D a The PC interface remote mode really eliminates the tedious process of keying in groups of entries on the power supply Because all the data are displayed together in the monitor possibility of wrong entry is greatly reduced Data of different groups can be classified stored exported and retrieved for use at any time Furthermore retrieved data will be in red color if they exceed the present preset limits of voltage in upper voltage level or current limiting value The operation principle of Saving Exporting Filing Deleting and Printing are the same as the Data Log function Clear Table Delete all data on the Display Table to ready for new data entry Read for PS Get data from the Power Supply 20 D Data Log Data Log window Rating 60V 5A secs ova Setting Description External Timed Program Internal Preset Memory Voltage 10 0 all Curent 2 004 e SETTING los S V const DD 0 z Q A coo 4 W SI OUTPUT o o se amp Nghe tit x Lag Det
3. are controlled by the dual action tuning knobs Push the knobs to toggle the coarse and fine tuning notice the subtle changes in brightness of related LED Adjust the knobs to your desired values by trying coarse and fine tuning To check the preset current level just turn the Current Knob slowly in any direction The display will resume its normal brightness after few seconds to double confirm your adjustment 6 2 Preset Mode a In this mode the Rear Control Light is ON to indicate panel V amp controls are de activated b There are 3 preset output P1 P2 P3 at the Recall Selection Switch 9 c The preset values are factory set as following table d End user can set his own output rating please refer to paragraph 6 3 Recall No Output Voltage Output Current P1 5V Maximum P2 13 8V Maximum P3 PSC 6118 15V Maximum PSC 6136 25V PSC 6160 55V 6 3 Set Mode First enter into the Set Mode by pushing Switch 8 to Set Mode slot The power supply is then ready to be preset 6 3 1 To define the preset output P1 P2 P3 a Select the Recall Switch 9 to the position P1 P2 or P3 which you want to set b Adjust the front panel voltage control knob to set your desired voltage value c Adjust the front panel current control knob to set your desired current limit value d Repeat the procedure for remaining recalls P1 P2 P3 if desired e Move Mode Switch 8 from Set to Preset position to confirm you
4. gt lt currentO gt CR lt voltage1 gt lt current1 gt CR lt voltage2 gt lt current2 gt CR OK CR Get saved Voltage and Cur rent value from 3 PS memory loctions lt voltagexX gt lt currentX gt X is memory location number start from 0 to 2 Input command GETM CR Return value 111111 CR 122122 CR 133133 CR OK CR Meaning PS return following preset value from 3 memory locations Memory 0 is 11 1V and 11 1A Memory 1 is 12 2V and 12 2A Memory 2 is 13 3V and 13 3A Input Command RUNM lt memory gt CR Return value OK CR Set Voltage and Current using values saved in memory loca tions lt memory gt 0 1 2 Input command RUNM1 CR Return value OK CR Meaning Set Voltage and Current using values saved in memory loca tion 1 25 12 Appendix USB configuration for remote programming This application note describes the procedure to configure the USB port for remote programming application The remote programmable power supply with USB can be connected to PC through USB cable USB to serial bridge design is used When connected to PC it will be converted as COM port shown in the following picture e g COM3 Device Manager DRAR Fie Action wiew Help GEES VA Batteries 4 Computer Hs Disk drives bi 2 Display adapters 4 DYDICD ROM drives Lu Ob Human Interface Devices CN IDE ATA ATAPI controllers ae Keyboards 1 Mice and other
5. pointing devices 1 2 Monitors Network adapters YF Ports COM amp LPT Communications Port COM1 EI Printer Port LPT1 _ lt St Silicon Labs CP210x USB to UART Bridge COM gt H Sound video and game controles System devices E A Universal Serial Bus controllers If the COM port does not come up please check if the USB driver has been prob ably installed The USB driver comes with software CD Make sure the CD has been loaded to computer first Then it can program as standard COM port The default COM port setting baud rate 9600 Data bits 8 bit stop bit 1 Parity None The power supply then can be programmed for remote control etc by the ASCII commands via the COM3 All the command sets are given in the user manual of the power supply 26 Notes 27 CIRCUIT TEST ELECTRONICS Division of R P Electronic Components Ltd BURNABY BC CANADA V5J 5M8
6. refer to prod uct specification Input command CURR120 CR Return value OK CR Meaning Set Current value as 12 0A Input Command GETS CR Return value lt voltage gt lt current gt CR OK CR Get PS preset Voltage amp Cur rent value lt voltage gt lt current gt Input command GETS CR Return value 150180 CR OK CR Meaning The Voltage value set at 15V and Current value set at 18A 24 Command code amp return value Function Example Input Command GETD CR Return value lt voltage gt lt current gt lt status gt CR OK CR Get PS Display values of Volt age Current and Status of CC CV lt voltage gt lt current gt lt status gt 0 1 O CV 1 CC Input command GETD CR Return value 150016001 CR OK CR Meaning The PS Display value is 15V and 16A It is in CC mode Input Command PROM lt voltage0 gt lt current0 gt lt voltage1 gt lt current1 gt lt voltage2 gt lt current2 gt CR Return value OK CR Save Voltage and Current value into 3 PS memory locations lt voltagexX gt lt currentX gt X is memory location number start from 0 to 2 Input command PROM111111022122033133 CR Return value OK CR Meaning Preset Memory 0 as 11 1V and 11 1A Preset 12 2A Preset Memory 2 as 3 3V and 13 3A emory 1 as 2 2V and Input Command GETM CR Return value lt voltageO
7. turn on When the cooling fan is being checked a high speed wind noise can be heard After the self checks the CV V and A LED indicators are lit up displaying voltage and 0 0 current To find out about the set CC current level just turn the current control knob one click in either direction The current display returns to 0 0 after a few seconds Table indicating the self test sequence Self test display and Sequence oon E DD DL Test contents To show software version HAA OU UH LIL UL Segment check l A gt l y O C V C V Indicator check 4 1 N o 7 QO C C C C Indicator check d 1 Sy 4 er and O CV Rear control indicator check g N Le 1 N D I 4 Q C V Return to C V d 1 w LE CI wl we Fa Start to check DD 2 0 1 Mite OD E wg rg fe Over voltage protection check D LIDD mi DU T UC bal Fe Over load protection check 0 0 6 0 0 5 mL D TUE wl we ww Over temperature protection check OD C O Cor OOC CHALL AE SES m EC Oo E rel re Fe Output off remote control mode COD DP 7 4 Using the control knobs The rotary encoder control knobs have fine and coarse tuning with clicking move ment Push the knobs to toggle between coarse and fine tuning notice the subtle changes in brightness of related LED Adjust the knobs to your desired values by trying coarse and fine tuning The display will resume its
8. 2 3 counts Current Meter 3 Digit LED Display 0 2 3 counts Other Input Voltage 120VAC 60Hz Full Load Input Current 2 4A 2 4A 2 2A 120VAC Efficiency 120VAC 80 5 80 5 81 5 Switching Frequency 100 120Khz 100 120Khz 100 120Khz Tracking Over Voltage Protec tions O P 1 5V set voltage 2V O P 5 18V set voltage 3V O P 1 5V set voltage 2V O P 5 20V set voltage 3V O P 20 36V set voltage 4V O P 1 5V set voltage 2V O P 5 20V set voltage 3V O P 20 60V set voltage 4V Transient Response Time 50 100 Load 1 5ms Power Factor Control Power factor correction gt 0 95 at optimal load Cooling Method Thermostatic Control Fan from Zero to full speed Protections Overload Short Circuit by Constant Current Output Tracking Over Voltage Over Temperature Fuse T6A 250V 5 x 20 mm Special Features 3 User defined VI preset Remote control V and output on off Preset Cycle Programming Max 20 presets of V amp I Max preset time 99min 59sec Max preset cycle 999 Accessory User Manual Application Software USB cable Dimensions WxHxD 200 sx 00 xv 208 mm 7 9x 3 5 x 8 2 inch Weight 2 4kg 5 2 lbs 17 11 PC Interface Control A General Functions and Display Description External Timed Program Internal Preset Memory Data Log Setting Step Voltage Curre
9. CIRCUIT TEST Switching Mode Power Supply PSC 6118 1 18VDC 10A PSC 6136 1 36VDC 5A PSC 6160 1 60VDC 2 5A OPERATION MANUAL PSC 6118 6136 6160 O8R14 Contents WARNING sinora g era euer GESANG page 5 CAUTION ecenin enn ea EEE E EEEE ANE ee 5 INTRODUCTION EE 6 WARRANTY rnein E E E E E t 6 CONTROLS AND INDICATORS 00 ccecceceeeeeeeeeeeeteeeeeteeeeeeeeeeecteeesteteestteesneeeees 7 CONTROL MODE SELECTION siniseks innsida aer ie taieear ipie Erne E EREE EERE 8 OPERATING INSTRUCTIONS 000 0 ce ccceeceecceeeeeeeeeeeeteeeeeceeeeeeeeeecneeeeeneeeesteeeeneees 10 ANALOGUE REMOTE CONTROL MODE 0 ccceeeeeeeeeeeeeeeteeeeeteeeeeteeeeenes 12 FAULTS AND TROUBLE SHOOTING 15 Si dell ue EE 17 PCINTERFACE CONTROL cerina peee a rean Eri Een gees 18 APPENDIX 28 ees Zefridde 26 Keep this manual in a safe place for quick reference at all times This manual contains important safety and operation instructions for correct use of the power supply Read through the manual and pay special attention to the markings and labels of this unit and equipment to be connected Pay special attention to these two types of notices used in this manual WARNING Failure to observe this warning may cause injury to persons and damage to power supply or connected equipment CAUTION Failure to observe this warning may result in damage to equipment and improper functioning of the power supply 1 Warning AX e Do not use this
10. cription vin OV ide 20 sl comin 00A CMa 208 lu Min OW wma 50w v T Min 0S x Then f0 zl D scriptiol Ma 60 5V MaxC 6 804 Now Sampling 35 UVL 60 5v UCL 6 84 Ver 0 6 A You can use the Data Log window to view present output data or stored data B All the parameters at the bottom of the window display can be changed by direct entry from the PC with decimal point and then confirm by the Enter key of the PC or select the values from respective drop menu Parameters at the bottom of the Data Log window V Min Minimum voltage level V Max Maximum voltage level C Min Minimum current level C Max Maximum current level W Min Minimum power level in watt W Max Maximum power level in watt Log Name Untitle Click cursor on Untitle type in a name for your log Note how the icon changes to solid color 21 Log Description You can type in your detail description of your log Icon Save Log a This function and the icon becomes effective when a Log Name is entered to replace the Untitle b Click on it will save the current data onto the PC c To retrieve the data go to the drop menu at Log Description Icon Export to a file of csv type Click on this icon will export the collected data in the Save Log in csv format to your PC Icon X Delete Click on this icon will delete the current log or retrieve
11. cross over CV CC 3 VI presets remote control offers unique solution for various loading conditions and applications The dual action coarse fine tune rotary encoder tuning with MCU makes setting the voltage and current levels ever so smooth precise and fast Setting chang ing and checking the current limit level can be done easily without sparking the output poles The analogue remote control functionality allows the output power on off voltage amp current can be adjusted without touching the front panel of the power supply The USB port is added for access to computer to run cyclical operation with max 20 programmable sets of preset voltage and current with different time duration and up to 999 cycles It is suitable for a wide range of applications such as laboratory telecommunica tion production testing field test of voltage critical distant load powering of DC network etc The 3 user defined presets facilitate quick access to frequently used VI settings 4 Warranty Circuit Test Electronics warrants to the original purchaser that this product be free of defect in material or workmanship for a period of 2 years from the date of purchase Any product which has been subjected to misuse or accidental damage is ex cluded from the warranty Except as stated above Circuit Test Electronics makes no promises or warranties either expressed or implied including warranties of merchantability or the fitness for any particular
12. d log on display at 3 Icon Print Log in CSV format The Time Frame Concept of Data Log The data logging function starts when the software is started running When T Min is set to zero second it means the unit is on real time and the length of time lapsed is on the left hand side of the Time Minimum T Len is the length of time lapsed starting from the Time Minimum Both parameters are adjustable so that any time period of the log can be displayed for analysis In the above example T Min is set to 0 second and T length to 120 second the display shows the output data starting at 0 second ago and ending at the 120 second mark Mas 60 5V Mast 6 804 Now Sampling 35 UVL OP UCL 6 84 Verk 0 6 Figure Bottom part of data log window Time Minimum Time Length 22 E Setting bss 5A ee External Timed Program Internal Preset Memory Bea Voltage 10 0V at Curent 2 004 e ID J V SETTING COMM Port Com3 const 00 O6 g A e004 Data Log Sampling Time B B W Voltage Upper Limit UVL Setting Je OUTFUTo o Current Upper Limit UCL Setting Default OK Description Masy 60 5V MaxC 6 804 Now Sampling 35 UYL 094 UCL 684 Ver 06 4 You can input your desired sample time from 1 second up or select from the drop menu Data Log Sampling Time You can set your output voltage upper limit UVL value to further safeguard your low voltage appl
13. he CC current using external power supply connected to Pin 3 Output voltage setting by remote control Check the output voltage range of the power supply by varying the external voltage source connected to Pin 2 8 2 Method B Using two 0 5K Ohm variable resistors Two variable resistors must be set up at the same time in order for the remote control to be functional PIN 4 Q 5V Internal DC PIN 3 Icc adjust PIN 4 GROUND Remote Socket Pin Assignment for variable resistor PIN FUNCTIONS REMARKS 1 Internal DC 5V Resistor end 2 Voltage Adjust Variable part of resistor 3 Current Adjust Variable part of resistor 4 Ground Another resistor end 5 Output OFF Short to Ground 6 N A d N A 8 N A CC current setting by remote control Short circuit the main output with 12AWG wire Adjust the CC current setting using the 0 5k Ohm variable resistor Output voltage setting by remote control Check the output voltage range of the power supply by adjusting the 5Kohm variable resistor 8 3 Remote Output ON OFF Control This remote output on off control can be activated in any of the modes Normal Preset Remote and Set mode A By default Pin 5 is open and output is ON B Shorting Pin 5 to Pin 4 ground and output is off C When output is off the C V amp C C LED will flash The current output volt age and current setting will show on the panel meter D You also can adjust the outp
14. ications Voltage Upper Limit UVL Setting You can set your output current upper limit UCL value to further safeguard your low current applications Current Upper Limit UCL Setting 23 F Command Set Command line format COMMAND lt parameter1 gt lt parameter2 gt CR NOTE One decimal place for current value PSC 6118 6318 6336 Two decimal places for current value PSC 6136 6160 6360 Command code amp return value Function Example Input Command GMAXI CR Return value lt voltage gt lt current gt CR OK CR Get PS maximum Voltage amp Current value lt voltage gt lt current gt Input command GMAX CR Return value 180200 CR OK CR Meaning Maximum Voltage is 18 0V Maximum Current is 20 0A Input Command SOUT lt status gt CR Return value OK CR Switch on off the output of PS lt status gt 0 1 O ON 1 OFF Input command SOUTO CR Return value OK CR Meaning Switch on the output of PS Input Command VOLT lt voltage gt CR Return value OK CR Preset Voltage value lt voltage gt 000 lt lt Max Volt Max Volt value refer to product specification Input command VOLT127 CR Return value OK CR Meaning Set Voltage value as 12 7V Input Command CURR lt current gt CR Return value OK CR Preset Current value lt current gt 000 lt lt Max Curr Max Curr value
15. nd power supply Listen carefully for the short wind noise from the cooling fan when the unit is turned ON again If you don t hear the self test wind noise the fan is faulty Do not use the power supply and contact your agent 9 3 OLP Over Load Protection Normally the overload protection is sustained by the CC constant current mode When the CC mode fails and goes undetected it may cause serious damage to your test piece or load The OLP is meant to minimize the extent of damage to your loads as power supplies do fail some day Switch off your power supply as soon as you see this warning as shown below moo GER UL eee To reset this warning switch off the unit and remove all loading Switch the unit back ON again and double check with caution If this problem cannot be fixed please contact and consult with your agent 10 Specifications MODELS PSC 6118 PSC 6136 PSC 6160 Output Variable Output Voltage 1 18VDC 1 36VDC 1 60VDC Variable Output Current 0 10A 0 5A 0 2 5A Voltage Regulation Load 10 100 Load 50mV Line 108 132VAC Variation 20mV Current Regulation Load 10 90 Rated Voltage 100mA 100mA 100mA Line 108 132VAC Variation 50mA Ripple amp Noise Ripple amp Noise r m s Voltage 5mV Ripple amp Noise peak peak 50mV 50mV 50mV Voltage Current Ripple amp Noise r m s 30mA 30mA 30mA Meter Type amp Accuracy Voltage Meter 3 Digit LED Display 0
16. normal brightness after few seconds to confirm your adjustment 7 5 Connect the equipment to the power supply Red is connected to the positive polarity input of the equipment and Black is connected to the nega tive polarity input of the equipment 7 6 Switch ON the power supply first and the panel meter amp green CV Indicator should light up again 7 7 Switch ON the equipment and the panel meter amp green CV Indicator should still remain in green 7 8 You can now operate the equipment NOTE When an operation is com plete switch off the equipment first and then switch off the power supply 8 Analogue Remote Control Mode There are two methods for remote control of current and voltage adjustment NOTE Both methods require both the current remote control part and the volt age remote control part to be set up and be in use at the same time in order for analogue remote control mode to be functional Otherwise unit will be in CC mode all the time and the analogue remote control will not be functional 8 1 Method A Using two external variable DC voltage sources Remote Socket Pin Assignment for external variable voltage source PIN FUNCTIONS REMARKS 1 Internal DC 5V Less then 50mA 2 Voltage Adjust 0 5V 3 Current Adjust 0 5V 4 Ground 5 Output OFF Short to Ground 6 N A 7 N A 8 N A 12 CC current setting by remote control Short circuit the main output with 12AWG wire Adjust t
17. nt Minute Second Output Dn a Voltage 12 0 i Current 5 004 1 05 0 200 00 10 10 0 2 00 o0 10 d d V SETTING 15 0 2 00 o0 10 a V const 20 o0 0 00 o0 oo oo 0 00 oo o0 A 5004 0 0 0 00 00 00 UD g Dn 0 00 oo oo DU 0 00 oo o0 Ei 0 0 0 00 D oo DI 0 00 oo 00 DU 0 00 oo o0 0 0 0 00 D oo DU 0 00 oo o0 5 0 0 0 00 oo oo Table Name Untitle z oo 0 00 00 o0 Table Description UG H uy H 17 oo 0 00 oo oo 18 DU 0 00 oo D x Running Cycle 0 Run Clear Table Description Mai 60 5V MaxC 6 804 Now Sampling 35 UVL 60 5V UCL 6 84 Ver 0 6 4 1 You can directly type the desired output voltage amp output current and then click enter symbol to set the value 2 The display shows the following readings and settings a Output voltage To show the output voltage and you also can click the voltage reading to set your desired voltage b Output current To show the output current and you also can click the cur rent reading to set your desired current c Output Power To show the output power in watt d CV amp CC mode indication To show V const for CV mode or l const for CC mode e Output Voltage and Current setting To show the output voltage and cur rent you currently set f Output ON OFF Outputo To show the output ON or OFF status You also can click the switch icon to set the unit output ON or OFF 18 B External Timed Program
18. power supply near water e Do not operate or touch this power supply with wet hands e Do not open the casing of the power supply when it is connected to AC mains e Refer all servicing to qualified service personnel only e Replace the AC fuse with the same type and rating as the original fuse e Do not touch the metal part of the output terminals e This power supply is designed for using in non cascade environment It is not recommended to connect two or more power supplies in parallel or in series e Analogue Remote Control or Remote Programming via USB function is only suitable for stand alone one unit operation e Do not use this power supply with electrical motors solenoid or inductive load that generates a back EMF and voltage transient which may damage the power supply 2 Caution e Use a grounded 3 pin AC source e This unit is for indoor use only e Do not operate or place this unit in a humid dusty direct sunlight location or near any heat source e Before plugging into local AC mains check the rating label at the back of the unit e Do not block any ventilation openings of the unit e This unit must be used within the specified rating regular excessive continuous loading will damage the power supply e The gauge size of input power cable must be at least 0 75mm and the total length of power cable must not exceed 3m 3 Introduction This family of efficient upgraded SMPS with small form factor auto
19. purpose 5 Controls and Indicators Front Rear 1 LED panel meter display with CC CV Indictor 2 Rear Control Indicator lights up when using Preset Remote Control Set mode 3 Output Voltage Control Knob control both the main and auxiliary output voltage 4 Output Current Control Knob control both the main and auxiliary output current limit 5 Power ON OFF Switch 6 Aux output terminal max 5A Note PSC 6118 The total rated current Aux Main is 10A PSC 6136 The total rated current Aux Main is 5A PSC 6160 The total rated current Aux Main is 2 5A 7 Output Terminal Rated 10A for PSC 6118 Rated 5A for PSC 6136 Rated 2 5A for PSC 6160 8 Mode Selection Switch Normal Preset Remote Control Set Modes 9 Recall Selection Switch 10 Remote Control Terminal 11 Cooling Fan Air Intake Grill 12 AC Input 13 USB port for access to computer to run cyclical operation with programmable voltage current period time and cycle 6 Control Mode Selection There are 4 modes Normal Preset Set and Remote Control mode for the power supply Slide the Mode Selection Switch 8 to your desired Mode The power supply is factory preset to Normal Mode with maximum current level CC 6 1 Normal Mode This is the factory preset mode and the power supply output V
20. r settings NOTE All preset values will remain unchanged even after the power supply has been turned off Always check output voltage of Presets before connecting to Load To check the preset values move Mode Switch 8 to preset position Move the Recall Switch 9 to P1 P2 or P3 The V and settings of corresponding RECALL P1 P2 P3 will be show on the panel meters 6 3 2 To reset the unit back to factory setting a Turn OFF the power supply b Push and hold both front panel voltage and current control knobs at the same time c Turn ON the power supply again d Release front panel voltage and current control knobs 6 4 Analogue Remote Control Mode To control the output voltage and current by remote control connector 10 Please refer to Section 8 7 Operating Instructions 7 1 This series has 3 models Make sure you have used the correct one They have different output voltage range and current as following Model Number Output Voltage Range Total Rated Current PSC 6118 1 18V O 10A PSC 6136 1 36V 0 5A PSC 6160 1 60V 0 2 5A 7 2 Check the rating label of the power supply and make sure it complies with your AC mains voltage Connect the power supply to the AC Mains using the provided power cord Make sure the Mode Switch 8 is at Normal Position 7 3 The power supply will perform a series of self checks when it is switched ON The LED and other indicators on the front panel will
21. ut by voltage amp current control knob to your desired value when output is off NOTE using the 8pin remote plug provided and connect with 22AWG wires Pin numbers are Gi 6 marked on the black portion CAUTION A The allowable fastest switching On Off frequency is two times per second When the On Off frequency is over two per second the power supply may not work normally and protections may be triggered 9 Faults and Trouble Shooting 9 1 OUP Over Voltage Protection This unit has a built in tracking over voltage protection feature In the event of output voltage becoming greater than the set value see specified range from specifications table protection will be triggered and the output power will be cut off and OUP warning appears as below To reset the warning switch off the unit and remove all loading Switch the unit back ON again and it should resume normal operation If this problem persists please contact and consult with your agent 9 2 OTP Over Temperature Protection There is a thermo sensor inside the unit to monitor and to prevent the unit to get too hot inside At OTP there is no output and the following warning will appear on the LED display When you get this warning switch off the unit and remove all loading HL Ee LEI e Check your load and output setting Allow the unit to cool down for at least 30 minutes Check if any of the ventilation is blocked check enough clearance arou
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