1 2. Safety Information… 3
Contents
1. key As a result of this the previous set value will be restored and the setting menu cancelled The U const will no longer flash During operation output On the voltage output can also be adjusted up to the set limit I LIMIT Current limit P LIMIT Press the I LIMIT key in the LIMITS field until the symbol I const flashes The current limit can now be adjusted in 1mA 2mA 10mA fine or 100mA norm coarse steps by using the encoder wheel If the I LIMIT key is now pressed for longer than 2s the current upper limit will again be set at rated current To complete the input press the IENTERI key An incorrectly set limit can be erased reset with the CE key As a result of this the previous set value will be restored and the setting menu cancelled The I const will no longer flash Power limit Press the P LIMIT key in the LIMITS field until the symbol P const flashes The power limit can now be adjusted to 1 W steps by using the encoder wheel If the P LIMIT key is now pressed for longer than 2s the power upper limit will again be set at 200 W To complete the input press the ENTER key An 14 IPS SERIES USER MANUAL incorrectly set limit setting can be erased reset with the CE key As a result of this the previous set value will be restor2. is 95 When the key is pressed output voltage will be changed to 10 00V x 1 05 10 50V while the key is pressed the output voltage will be changed to 10 00V x 0 95 9 50V The output voltage will return to normal by pressing the normal key F REM key A serial RS 232 interface is incorporated on the rear of the case With the appropriate interface cable and optional software communication with an IBM compatible PC is therefore possible The interface is electrically isolated via an optocoupler REM When the Remote Control mode is selected all the controls on the front panel are inhibited except POWER and locked against direct input 7 Disposal Dispose of an unusable irreparable Switching Power Supply PSP series in accordance with applicable local statutory regulations 17 IPS SERIES USER MANUAL 8 Rectification of faults With this ISO TECH series power supply you have acquired a new generation instrument constructed to the latest technological standards However faults can occur Because of this the following describes how some of these problems can be resolved by the user relatively easily Problem Possible solution No display Is the instrument switched on Is the AC power plug making good contact both in the instrument and in the AC power socket Is the AC fuse OK No input possible REM or LOCK key pressed see under section C or F expose co
3. 0 05 4 digits 0 05 3 digits 0 05 3 digits Current 0 1 5 digits 0 1 5 digits 0 3 10 digits Digital Display Multi line LCD with background lighting AC fuse Anti Surge HBC 20x5 mm T6 3A 250V for 115V T3 15A 250V for 230V Weight Approx 4 kgs Dimensions Approx 225x100x305 m m WxHxL without stand and power cable 7 IPS SERIES USER MANUAL Environmental Conditions Operating Indoor use altitude up to 2000m Environment Ambient Temperature 0 C to 40 C Relative Humidity 80 Maximum Installation Category II 300V Pollution Degree 2 Operating temperature amp 0 C to 40 C Humidity 80 Maximum non condensing Storage temperature range 10 C to 70 C Power Cords 2t nl Accessories Instruction manual 1 Test Lead is ae 1 IPS SERIES USER MANUAL 4 Panel Controls amp Indicator Front Panel 1 4 mm safety sockets la negative connection 1b positive connection and 1c earth connection 2 POWER AC switch for switching the power supply on 1 and off 0 3 Encoder wheel for changing the V SET V LIMIT I LIMIT P LIMIT and parameter settings 4 Keypad for operation of the Power Supply 5 Backlit LCD Display with indication of the output voltage current power settings and indication of the V I and P limits Additionally indication of OUTPUT On or Off and keypad locked or unlocked Rear Panel 6 AC
4. Class I It is equipped with IPS SERIES USER MANUAL a VDE approved power supply with safety cable and may only be used with and connected to AC supplies with a protective earth Ensure the yellow green earth wire in the instrument in its power cable and in the AC supply remains properly connected A damaged earth wire may endanger life Ensure all appropriate health and safety requirements are observed and use only as provided for by local regulations for this type of equipment Ensure adequate supervision as required Make sure that only the fuses of the given types and current ratings are used as replacements Do not use a repaired fuse or bridge the fuse holder with wire Do not operate the instrument with the cover removed or insecurely fitted When using the power supplies the wearing of metal or other conducting jewelry such as chains bracelets rings etc is not recommended as accidentally short circuiting the output terminals may cause severe burns Note These power supplies are not intended for use with on people or animals or with Life Support Systems When connecting the outputs of more than one power supply in series the voltages may be hazardous gt 35 VDC Only power supplies with 4 IPS SERIES USER MANUAL an identical output current and voltage specification may be placed in series or in parallel otherwise the weaker of the two will be damaged The instrument is to be
5. KOE lt cr gt is sent to the power supply from computer whatever the relay status is the relay of power supply will be set to ON immediately Function Set the Relay status to OFF Syntax KOD cr HEX 4B 4F 44 0D Explain When the message of KOD lt cr gt is sent to the power supply from computer whatever the relay status is the relay of power supply will be set to OFF immediately Function Save the present status to the EEPROM Syntax EEP cr HEX 45 45 50 0D Explain When the message of EEP lt cr gt is sent to the power supply from 39 IPS SERIES USER MANUAL computer the power supply will be save the present setting value to EEPROM immediately Function To obtain value Syntax B lt cr gt HEX 42 0D Explain When the message of B lt cr gt is sent to the power supply from computer the power supply will return the following message immediately Bbbb lt cr gt 4 characters totally CR LF The contents consist of the uppercase B and the numeral from 0 to 9 Further details is described as follows bbb The present value the unit When the uppercase B becoming the lowercase b means that the status is in the setting of the mode Function To obtain value Syntax D cr HEX 44 0D 40 IPS SERIES USER MANUAL Explain When the message of D lt cr gt is sent to the power supply from computer the power supply will ret
6. The present output current the unit is A Syntax A lt cr gt HEX 410D Explain When the message of A lt cr gt is sent to the power supply from computer the power supply will return the following message immediately Aa aaa lt cr gt 6 characters totally CR LF The contents consist of the uppercase A the numeral from 0 to 9 and decimal Further details is described as follows a aaa The present output current the unit A Function The present output load the unit is W Syntax W lt cr gt HEX 57 0D Explain When the message of W lt cr gt is sent to the power supply from computer the power supply will return the following message immediately Wwww w lt cr gt 6 characters totally CR LF The contents consist of the uppercase W the numeral from 0 to 9 and decimal Further details is described as follows 26 IPS SERIES USER MANUAL www w The present output load the unit W Function The maximum voltage limit at present the unit is V Syntax U lt cr gt HEX 550D Explain When the message of U lt cr gt is sent to the power supply from computer the power supply will return the following message immediately Uuu lt cr gt 3 characters totally CR LF The contents consist of the uppercase U and the numeral from 0 to 9 Further details is described as follows uu The maximum voltage limit at present the unit V When the uppercase U becoming the lowercase u means that the po
7. input pins for handshaking e Ensure that the signal ground of the equipment is connected to the signal ground of the external device e Ensure that the chassis ground of the equipment is connected to the chassis ground of the external device e Donotuse more than 15m of cable to connect devices to a PC e Ensure the same baud rate is used on the device as the one used on PC terminal 21 IPS SERIES USER MANUAL No connection Receive Data RxD input Transmit Data TxD output 12V Input input Signal Ground GND No connection No connection No connection No connection 0100 cJ y Ace to paces Note This pin needs a constant high signal 12V Figure 1 Pin assignments of the RS232 connector on the rear panel for DB 9 D EQUIPMENT COMPUTER DB9 DTE DB9 DTE Pin2 Pin2 Pin3 Pin3 Pin4 Pin4 Pin 5 Pin 5 Figure 2 Wiring configuration for DB9 to DB9 Computer s Connection A personal computer with a COM port is essential in order to operate the programmable power supply via RS232 interface The connections between power supply and computer are as follows Connect one end of a RS232 cable to the computer II Connect the other end of the cable to the RS232 port on the programmable power supply III Turn on the programmable power supply IV Turn on the computer 22 IPS SERIES USER MANUAL RS232 message terminator The power supply has 25 commands available Every comm
8. placed onto a hard non flammable base so that cooling air can enter unhindered The cooling of the unit occurs predominantly through convection Note Power supply ventilation holes should not be covered Power supplies and their connected loads should not be left operating unattended Loads under test may fail and draw excessive current thereby causing overheating and consequent fire hazards Faulty power supplies can produce voltages in excess of 50 V DC which can be hazardous even when the indicated normal output voltages of the units are lower than this Note When working on equipment powered by hazardous voltages only use insulated tools with a suitable rating The power supply outputs and connecting leads sockets and terminals must be protected from being touched directly In addition the leads used must be sufficiently insulated and the contact points safe from being touched safety sockets Use of bare metal leads and contacts should be avoided All such items are to be covered by suitable non flammable insulating material or other measures taken and therefore protected from being touched directly The electrically conducting parts of the connected load must also be appropriately protected from being touched directly If it is suspected that the instrument is not safe to operate through one or more of the following reasons the unit must be switched off and 5 IPS SERIES USER MANUAL precautions taken agai
9. rear power inlet socket 7 RS 232 interface opto isolated for connection to PC 8 Cooling fan 9 IPS SERIES USER MANUAL e Front Panel PLEASE REMOVE ALL MANUFACTURER S MARKINGS FROM THIS Figure 4 1 DIAGRAM 10 IPS SERIES USER MANUAL Rear Panel Figure 4 2 IPS SERIES USER MANUAL S Functional Description of Operating Elements With its continuously adjustable voltage and current settings this power supply can be used universally in school work hobby and other applications An electronic current limiter protects the power supply from overload and short circuits at its output a fan controlled by a temperature circuit protects the power supply its electronics from thermal overload When an overload occurs short circuit or over current the output voltage is reduced i e the voltage folds back to a low level Only when the overload has been removed does the output return to its preset value The set values can be read via the illuminated multiple line LCD display The voltage current or power setting is adjusted by means of an encoder wheel in 10mV 20mV 1mA 2mA 10mA and 1 W steps respectively Therefore the exact adjustment of the output voltage and the current limit and maximum output power is possible 12 IPS SERIES USER MANUAL 6 Operating Instructions with keypad input A B
10. supply from computer the power supply will decrease one unit from the present setting of immediately Example The present value is at 105 after the command is sent from computer the value is at 104 Function To add one unit to the present setting of Syntax SD lt cr gt HEX 53 44 2B OD Explain When the message of SD lt cr gt is sent to the power supply from computer the power supply will add one unit to the present setting of immediately Example The present value is at 90 after the command is sent from computer the value is at 91 43 IPS SERIES USER MANUAL Function To decrease one unit from the present setting of Syntax SD cr HEX 53 44 2D 0D Explain When the message of SD lt cr gt is sent to the power supply from computer the power supply will decrease one unit from the present setting of immediately Example The present value is at 90 after the command is sent from computer the value is at 89 Function Set the output voltage value Syntax SV XX XX x is a number between 0 and 9 Explain The power supply will set the desired value of output voltage when the command is received 44 IPS SERIES USER MANUAL Example SV 12 34 Set output voltage to 12 34V Function Set voltage limit Syntax SU xx x is a number between 0 and 9 Explain The power supply will set desired up limit value
11. this equipment may be modified or converted IPS SERIES USER MANUAL 2 Safety Information Note Damage caused by failure to observe the operating N instructions will invalidate the guarantee The supplier accepts no liability for consequential damage and accepts no responsibility for damage to property or injury to persons caused by improper operation or failure to observe the safety instructions Such cases will invalidate the guarantee a Installation and handling safety instructions Observe the following rules when installing the instrument al Do not use the instrument in extremely cold or hot locations or directly adjacent to a heating fan a2 Do not switch the instrument on immediately when it is brought from a cold environment into a warm room Wait until the instrument comes to room temperature as under the adverse conditions the resultant condensation may destroy the instrument a3 Ensure there is proper ventilation for the vents in the case front left side and cooling fan on the rear Blocking the ventilation will allow the instrument to overheat and cause damage a4 Never operate the instrument near hot soldering irons a5 Do not place the Power Supply with its front panel down as this will damage the operating controls a6 Do not use the instrument 1f it appears damaged is wet or you suspect it is not operating correctly b General safety requirements The instrument is constructed to Protection
12. voltage is at 20 00V and the wheel knob status is at normal the SV lt cr gt message is sent to the power supply the voltage of which will become 19 00V Function Add one unit to the present voltage limit setting Syntax SU lt cr gt HEX 53 55 2B 0D Explain When the message of SU lt cr gt is sent to the power supply from computer the power supply will add one unit to the present voltage limit setting immediately 31 IPS SERIES USER MANUAL Example The present voltage limit is at 30V and the wheel knob status is at normal the SV lt cr gt message is sent to the power supply the voltage limit of which will become 31V Function Subtract one unit from the present voltage limit setting Syntax SU cr HEX 53 55 2D 0D Explain When the message of SU lt cr gt is sent to the power supply from computer the power supply will subtract one unit from the present voltage limit setting immediately 32 IPS SERIES USER MANUAL Example The present voltage limit is at 30V and the wheel knob status is at normal the SU lt cr gt message is sent to the power supply the voltage limit of which will become 29V Function Add one unit to the present current limit setting Syntax SI lt cr gt HEX 53 49 2B 0D Explain When the message of SI lt cr gt is sent to the power supply from computer the power supply will add one unit to the present current limit setting
13. IPS SERIES USER MANUAL CONTENTS PAGE 1 Product Introduction cccccsssssssssscssssscsssssssssssesessssccees L 2 Safety Information ceeeeeeeeeeeeee eene eene nennen 3 3 Technical Specifications ccccscccscscecesceesesceseees 7 4 Panel Controls and Indications eere 9 5 Functional Description of Operation Element 12 6 Operating Instruction with Keypad Input 13 Te Disposal eee ee eene rne euren ee atero tence 17 8 Rectification of Faults eese 18 9 Mainten iice e cic percer eene Ea Ete aroa seei 19 10 APPENDIX Connecting the Programmable Power Supply via RS232 Interface eese eerie toan oa nasa aa o sosvsccosbavesescsssess 21 IPS SERIES USER MANUAL SAFETY TERMS AND SYMBOLS These terms may appear in this manual or on the product WARNING Warning statements identify conditions or practices that could result in injury or loss of life gt CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property The following symbols may appear in this manual or on the product A A uH DANGER ATTENTION Protective Earth ground Frame or High Voltage refer to Manual Conductor Terminal Chassis Terminal Terminal ii IPS SERIES USER MANUAL FOR UNITED KINGDOM ONLY NOTE This lead appliance must only be wire
14. Load Current Fan Load Current Fan IPS 405 2 10A 50mA On 1 80A 50mA Off IPS 603 1 40A 50mA On 1 20A 50mA Off IPS 2010 2 10A 50mA On 1 80A 50mA Off 2 To avoid damaging the power supply if the fan fails to work when the temperature or current has reached the appropriate value turn off the instrument and investigate the cause 20 IPS SERIES USER MANUAL 3 10 APPENDIX Connecting the Programmable Power Supply via RS232 Interface The RS232 interface capabilities The RS232 interface provides a point to point connection between two items of equipment such as a computer and the power supply There are some parameters you need to set on the both sides Once you have set these parameters you can control the power supply through the RS232 interface e Baudrate 2400 baud Parity bit none Data bit 8 bits Stop bit 1 stop bit Data flow control none Notes for RS232 installation The power supply is a DTE device with a 9 pin D type shell RS232 connector located on the rear panel Figure 1 shows the equipment of 9 pin connector Male with its pin number assignments Figure 2 shows the wiring configuration for DB9 to DB9 When the programmable power supply is set up with a RS232 interface please check the following points e Do not connect the output line of one DTE device to the output line of the other e Many devices require a constant high signal on one or more
15. ainst inadvertent adjustment Only the Power switch remains active Locking is indicated by the locked symbol in the bottom line of the display If the LOCK key is pressed again gt approx 2s then the operating elements are released again unlocked D Adjusting the output OUTPUT The output of the power supply is switched on or off via a relay with the OUTPUT key In the process the status On or Off is indicated at the bottom right of the display On switching the power supply on the output is always in switched off status settings t Under output off status press key once the LCD display will indicate xxx the value of the original stored data now set the value by using the knob and press the enter key to save it Afterward when the output is in the ON state press the H key the output will be changed according to the saved value Under output off status press key once the LCD display will indicate xxx the value of the original stored data now set the value by using the knob and press enter key to save it Afterward when the output is in the ON state press the key the output will be changed according to the saved value For example Set the output voltage as 10 00V the saved value of is 105 16 IPS SERIES USER MANUAL and the saved value of
16. and is end up with cr ASCII 0Dh or ACSCII 0D 0A acceptable The return message lt cr gt of the power supply is CR LF ASCII 0D 0A Function To obtain all the status values of the power supply Syntax L cr HEX 4C 0D Explain When the message L lt cr gt is sent to the power supply from computer the power supply will return the message as follows immediately Vvv vvAa aaaWwww wUuuli iiPpppFffffff cx 37 characters totally The contents consist of the uppercase V A W U LP F the numeral from 0 to 9 and decimal Further details is described as follows VV VV The present output voltage the unit V a aaa The present output current the unit A www w The present output load the unit W uu The maximum voltage limit at present the unit V lii The maximum current limit at present the unit A ppp The maximum load limit at present the unit W 23 IPS SERIES USER MANUAL ffffff The status of power supply at present 1 f the relay status 0 OFF 1 ON 2 f the temperature status 0 Normal 1 Overheat 3 f the wheel knob status 0 Normal 1 Fine 4 f the wheel knob status 0 Lock 1 Unlock 5 f the remote status 0 Normal 1 Remote 6 f the lock status 0 Unlock 1 Lock Note The setting is workable through computer only when the remote is at 1 All the data above is in the range from 0 to 9 When the uppercase U becoming the lowercase u means that the status is in t
17. asic setting a Connect the AC power cable to the AC power socket on the rear of the power supply and ensure that it is firmly seated then plug the earthed power plug into an earthed AC power socket Attention The continuity of the protective earth conductor must be unbroken within the instrument within the AC power cable and within the AC power socket to ensure safety of the operator b Press the AC power On Off switch Attention The functional earth terminal on the front of the instrument and the RS 232 interface connector earth are connected directly to the protective earth conductor of the AC power input socket and of the connected AC power socket B Setting the limits On applying power to the instrument the voltage current and power output values are each preset to their maximum values This upper limit can be reduced by means of the V LIMIT I LIMIT P LIMIT keys as follows V LIMIT Voltage limit Press the V LIMIT key in the LIMITS field until the symbol U const flashes The voltage limit can now be adjusted to 1V steps by using the encoder wheel If the V LIMIT key is now pressed for longer than 2s the voltage upper limit will again be set at rated 13 IPS SERIES USER MANUAL voltage To complete the input press the ENTER key An incorrectly set limit can be erased reset with the CE
18. d by competent persons WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT The wires in this lead are coloured in accordance with the following code Green Yellow Earth Blue Neutral Brown Live Phase As the colours of the wires in main leads may not correspond with the colours marking identified in your plug appliance proceed as follows The wire which is coloured Green amp Yellow must be connected to the Earth terminal marked with the letter E or by the earth symbol D or coloured Green or Green amp Yellow The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black iii IPS SERIES USER MANUAL The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red If in doubt consult the instructions provided with the equipment or contact the supplier or a competent elctrician This cable appliance should be protected by a suitably rated and approved HBC mains fuse refer to the rating information on the equipment and or user instructions for details As a guide cable of 0 75mm should be protected by a 3A or 5A fuse Larger conductors would normally require 13A types depending on the connection method used Any moulded mains connector that requires removal replacement must be destroyed by removal of any fuse amp fuse carrier and disposed of immediately as a plug with bared wi
19. ed and the setting menu cancelled The P const will no longer flash Attention The current I LIMIT is adjusted independently of its setting by the maximum output power setting The voltage upper limit does not change C KEY INPUT field settings V SET Using the up to the preset upper limit directly For this the V SET IV SET key the output voltage can be adjusted n key must be pressed and held and the voltage changed with the encoder wheel If the fine F key is selected the changes occur in 10 mV and 20mV steps If norm ENTER be reset with the IN key is selected the changes occur in 1V steps Each input via the LIMITS keypad is completed with the ENTER key CE Any values incorrectly entered via the LIMITS keypad can CE key N The increment of each setting step can be changed by using the N Normal key In connection with the F key so called mutual locking is achieved the display If the F F If the N key is pressed the fine symbol disappears from key is pressed again the symbol fine appears on the display LOCK Pressing the LOCK key disables all keys and the encoder 15 IPS SERIES USER MANUAL wheel ag
20. he setting of the voltage limit mode When the uppercase I becoming the lowercase i means that the status Is in the setting of the current limit mode When the uppercase P becoming the lowercase p means that the status Is in the setting of the load limit mode Example The return message from power supply is V20 00A2 500W050 0U4015 00P200F101000 cr V20 00 means that the present output voltage is at 20 00V A2 500 means that the present output current is at 2 5004 W050 0 means that the present output load is at 050 0W U40 means that the present voltage limit 1s at 40V 15 00 means that the present current limit is at 5 00A P200 means that the present load limit is at 200W 24 IPS SERIES USER MANUAL F101000 D Not yet getting into Lock mode Not yet getting into Remote mode Wheel knob setting acceptable this signal can be ignored Wheel knob is in the Fine mode The temperature isn t overheat Relay on Function The present output voltage the unit is V Syntax V lt cr gt HEX 56 0D Explain When the message of V lt cr gt is sent to the power supply from computer the power supply will return the following message immediately Vvv vv lt cr gt 6 characters totally CR LF The contents consist of the uppercase V the numeral from 0 to 9 and decimal Further details is described as follows vv vv The present output voltage the unit V 25 IPS SERIES USER MANUAL Function
21. immediately Example The present current limit is at 3 00A and the wheel knob status is at normal the SI lt cr gt message is sent to the power supply the current limit of which will become 3 10A Function Subtract one unit from the present current limit setting Syntax SI cr HEX 53 49 2D 0D Explain When the message of SI lt cr gt is sent to the power supply from computer the power supply will subtract one unit from the present current limit setting immediately 33 IPS SERIES USER MANUAL Example The present current limit is at 3 00A and the wheel knob status is at normal the SI lt cr gt message is sent to the power supply the current limit of which will become 2 90A Function Add one unit to the present load limit setting Syntax SP lt cr gt HEX 53 50 2B 0D Explain When the message of SP lt cr gt is sent to the power supply from computer the power supply will add one unit to the present load limit setting immediately Example The present load limit is at 100W and the wheel knob status is at normal the SP lt cr gt message is sent to the power supply the load limit of which will become 101 W Function Subtract one unit from the present load limit setting Syntax SP cr HEX 53 50 2D 0D Explain When the message of SP lt cr gt is sent to the power supply from 34 IPS SERIES USER MANUAL computer the power supply will subtract o
22. mponents carrying hazardous voltages Connection points may also be live Before any adjustment maintenance repair or exchange of parts or assemblies requiring opening of the instrument the unit must be disconnected from all voltage sources and measurement circuits If the adjustment maintenance or repair is subsequently required on the open unit these must only be performed by a competent person familiar with the associated hazards and relevant regulations VDE 0100 VDE 0701 VDE0683 Capacitors within the instrument can remain charged for a considerable time even after the unit has been disconnected from all voltage sources and external circuits Attention The opening of covers or removal of parts can 18 IPS SERIES USER MANUAL 9 Maintenance The following instructions are intended for the guidance of qualified personnel only To avoid electrical shock do not perform any servicing other than the operating instructions unless you are qualified to do so 9 1 Fuse Replacement If the fuse blown the CV or CC indicators will not light and the power supply will not operate The fuse should not normally blow unless a fault has developed in the unit Try to determine and correct cause of the blown fuse then replace only with a fuse of the correct rating and type The fuse is located on the rear panel see Fig 4 2 WARNING For continued fire protection Replace with Zik 250V fuse of the specified type and rating and disco
23. ne unit from the present load limit setting immediately 35 IPS SERIES USER MANUAL Example The present load limit is at 100W and the wheel knob status 1s at normal the SP lt cr gt message is sent to the power supply the load limit of which will become 099W Function Set the maximum voltage limit value Syntax SUM lt cr gt HEX 53 55 4D 0D Explain When the message of SUM lt cr gt is sent to the power supply from computer the power supply will set the voltage limit to the maximum immediately Example The present voltage limit is at 20V the SUM lt cr gt message is sent to the power supply the voltage limit of which will become 40V Function Set the maximum current limit value Syntax SIM lt cr gt HEX 53 49 4D 0D Explain When the message of SIM lt cr gt is sent to the power supply from computer the power supply will set the current limit to the maximum immediately 36 IPS SERIES USER MANUAL Example The present current limit is at 2 50A the SIM lt cr gt message is sent to the power supply the current limit of which will become 5 00A Function Set the maximum load limit value Syntax SPM lt cr gt HEX 5350 4D 0D Explain When the message of SPM lt cr gt is sent to the power supply from computer the power supply will set the load limit to the maximum immediately Example The present load limit is at 100W the SPM lt cr gt message is
24. nnect the power cord before replacing fuse 9 2 Line Voltage conversion The primary winding of the power transformer is tapped to permit operation from 115 230 VAC 50 60 Hz line voltage Conversion from one line voltage to another is performed by changing the AC selector switch as shown in Fig 4 2 To convert to different line voltage perform the following procedure 1 Disconnect the power cord 2 Set the AC switch to the desired line voltage position 3 Reconnect the power cord 19 IPS SERIES USER MANUAL 9 3 Cleaning To clean the power supply use a soft cloth dampened in a solution of mild detergent and water Do not spray cleaner directly onto the instrument since it may leak into the cabinet and cause damage Do not use chemicals containing benzine benzene toluene xylene acetone or similar solvents Do not use abrasive cleaners on any portion of the instrument 9 4 Fan Control 1 The fan of the power supply will not work upon power on until the temperature or load current reaches the condition as follows Temperature dependent When the temperature of the power supply reaches to range of 45C 5 C for 5 to 6 seconds the fan starts to work while the temperature is less than 40 C 5 C the fan stops Load current dependent Depending on the model of power supply the fan will operate at different load currents When the load current reaches the value shown below the fan will run Model
25. nst unintentional operation the unit shows visible signs of damage the unit no longer functions after prolonged storage under unfavourable conditions or after severe transportation stress Do switch on the instrument immediately if it has been brought from a cold environment into a warm room Wait until it has reached room temperature as under adverse conditions the resultant condensation may destroy the unit IPS SERIES USER MANUAL 3 Technical Specifications Model IPS 603 IPS 405 IPS 2010 Operating voltage 115 230 VAC 15 Power frequency 50 60 Hz Power consumption approx 420VA max Power output 200W max Output voltage 0 60VDC 0 40VDC 0 20VDC 20mV resolution 10mV resolution 10mV resolution Program Accuracy 0 05 4 digits 0 05 3 digits 0 05 3 digits Output Current 0 3 5A 0 5A 0 10A 2mA resolution 2mA resolution 5mA resolution Program Accuracy 0 1 5 digits 0 1 5 digits 0 3 10 digits Voltage Load lt 10mv Regulation Current Load Regulation MA Voltage Line Regulation novo Current Line lt 0 05 Regulation Ripple Voltage lt 20 mV rms Ripple Current lt 10 mArms Readback Resolution o 5A 10mV2mA 10mV5mA Meter Readback Accuracy Meter Voltage
26. of the voltage when the command is received Example SU 20 Set voltage limit to 20V Function Set current limit Syntax SI X xx x is a number between 0 and 9 Explain 45 IPS SERIES USER MANUAL The power supply will set desired up limit value of the current when the command is received Example SU 1 25 Set current limit to 1 25A Function Set power limit Syntax SP XXX x is a number between 0 and 9 Explain The power supply will set desired up limit value of the power when the command is received Example SP 100 Set power limit to 100W The power setting changes the current limit only the voltage limit will remain unchanged 46
27. res is hazardous if a engaged in live socket Any re wiring must be carried out in accordance with these instructions and local regulations iv IPS SERIES USER MANUAL 1 Product Introduction The IPS series are programmable switched mode power supplies with backlit liquid crystal displays built to the latest technological standards Construction is in accordance with VDE 0411 equal to EN 61010 Moreover the IPS series has been EMC tested and fulfils the requirements of the applicable European and national directives j Note This is a Class A device which can cause RF interference within the home This equipment is supplied in safe condition To maintain this condition and to guarantee safe operation the user must comply with the operating and safety instructions contained within this manual Application Note The current consumption of a connected load must not exceed the rated output current The IPS Power Supply series is suitable for connection to 115 or 230 V 50 60 Hz AC Operation must not take place under unfavorable ambient conditions including Moisture or excessive air humidity Dust combustible gases fumes or solvents Thunderstorms or storm conditions such as strong electrostatic fields etc 1 IPS SERIES USER MANUAL Any use other than as described above may lead to damage to the unit or cause danger such as short circuit fire electric shock etc No part of
28. sent to the power supply the load limit of which will become 200W Function Set the wheel knob to Fine status Syntax KF cr HEX 4B 46 0D Explain When the message of KF lt cr gt is sent to the power supply from computer the power supply will set the wheel knob to Fine status immediately Example 37 IPS SERIES USER MANUAL The present wheel knob status is at Normal the KF lt cr gt message is sent to the power supply the wheel knob status will become Fine Function Set the wheel knob to Normal status Syntax KF cr HEX 4B 4E 0D Explain When the message of KN lt cr gt is sent to the power supply from computer the power supply will set the wheel knob to Normal status immediately Example The present wheel knob status is at Fine the KN lt cr gt message is sent to the power supply the wheel knob status will become Normal Function Set the Relay status to Invert Syntax KO lt cr gt HEX 4B 4F 0D Explain When the message of KO lt cr gt is sent to the power supply from computer the power supply will invert the relay status immediately Example The present relay status is at OFF the KO lt cr gt message is sent to the power supply the relay status will become ON send the message again will become OFF 38 IPS SERIES USER MANUAL Function Set the Relay status to ON Syntax KOE lt cr gt HEX 4B AF 45 0D Explain When the message of
29. urn the following message immediately Dddd cr 4 characters totally CR LF The contents consist of the uppercase D and the numeral from 0 to 9 Further details is described as follows ddd The present value the unit 9o When the uppercase D becoming the lowercase d means that the status is in the setting of the mode Function Display the present value at or mode Syntax Q cr HEX 510D Explain When the message of Q lt cr gt is sent to the power supply from computer the power supply will return the following message immediately Qqqaqqq lt cr gt 7 characters totally CR LF 41 IPS SERIES USER MANUAL The contents consist of the uppercase B and the numeral 0 or 1 Further details is described as follows Whether the first q is at mode 0 No I Yes Whether the second q is at mode 0 No 1 Yes Function To add one unit to the present setting of Syntax SB lt cr gt HEX 53 42 2B OD Explain When the message of SB lt cr gt is sent to the power supply from computer the power supply will add one unit to the present setting of immediately Example The present value is at 105 after the command is sent from computer the value is at 106 Function To decrease one unit from the present setting of Syntax SB cr HEX 53 42 2D 0D 42 IPS SERIES USER MANUAL Explain When the message of SD lt cr gt is sent to the power
30. wer supply from computer the power supply will return the following message immediately Fffffff cr 7 characters totally CR LF 123446 The contents consist of the uppercase F and the numeral from 0 to 9 Further details is described as follows 1 f the relay status 0 OFF 1 ON 2 f the temperature status 0 Normal 1 Overheat 3 f the wheel knob status 0 Normal 1 Fine 4 f the wheel knob status 0 Lock 1 Unlock 5 f the remote status 0 Normal 1 Remote 6 f the lock status 0 Unlock 1 Lock Note The setting is workable through computer only when the remote is at 1 Function Add one unit to the present voltage setting Syntax 29 IPS SERIES USER MANUAL SVt lt cr gt HEX 53 56 2B 0D Explain When the message of SV lt cr gt is sent to the power supply from computer the power supply will add one unit to the present voltage setting immediately 30 IPS SERIES USER MANUAL Example The present output voltage is at 20 00V and the wheel knob status is at normal the SV lt cr gt message is sent to the power supply the voltage of which will become 21 00V Function Subtract one unit from the present voltage setting Syntax SV cr HEX 53 56 2D 0D Explain When the message of SV lt cr gt is sent to the power supply from computer the power supply will subtract one unit from the present voltage setting immediately Example The present output
31. wer supply is in the setting status of voltage limit mode Function The maximum current limit at present the unit is A Syntax I lt cr gt HEX 49 0D Explain When the message of I lt cr gt is sent to the power supply from computer the power supply will return the following message immediately 27 IPS SERIES USER MANUAL Ii iii cr 5 characters totally CR LF The contents consist of the uppercase I the numeral from 0 to 9 and decimal Further details is described as follows lii The maximum current limit at present the unit A When the uppercase U becoming the lowercase u means that the power supply is in the setting status of current limit mode Function The maximum output load limit at present the unit is W Syntax L cr HEX 500D Explain When the message of L lt cr gt is sent to the power supply from computer the power supply will return the following message immediately Pppp lt cr gt 4 characters totally CR LF The contents consist of the uppercase P and the numeral from 0 to 9 Further details is described as follows ppp The maximum load limit at present the unit W When the uppercase P becoming the lowercase p means that the power supply is in the setting status of output load limit mode 28 IPS SERIES USER MANUAL Function The present status of the power supply Syntax F cr HEX 460D Explain When the message of F lt cr gt is sent to the po
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