PC1000 / PC1400 /PC2000 Installation manual
Contents
1. consists of an additional voltage regulator operating in parallel with the main regulator The output voltage is limited to approximately 15 above the nominal output voltage As long as the OVP circuit is active the alarm relay is set to ALARM state and the red REG NOT OK LED is lit 10275 8 doc Page 9 14 POLYAMP LALA p PCHWINITAELATION MANUAL 9 Inrush current limit All models are equipped with an inrush current limit feature The input capacitors are charged through a resistor to reduce the input current during start up When the converter starts this resistor is shunted by power relay All models have a slow start feature To reduce input current during start up the output capacitors are charged slowly approximately 0 15 10 Isolation voltage test Each converter has been isolation tested in factory before deliveries see Table 2 Warningl An isolation test shall only be performed by personnel aware of the dangers and hazards of the test Warning 2 Consecutive insulation test will damage the Y capacitors provoking less EMC performance Isolation out case Isolation Output In out voltage In case Vd c 24 48 2 5kVd c 24 48 2 5kVd c 72 Table 2 Isolation voltages on different converters 10 1 DC isolation test output to case 1 Disconnect all cables from the converter 2 Connect the input terminals of the converter to case 3 Connect the output terminals tog2. E UNE NE NEN Eee s 11 12 2 THE INPUT FUSE BLOWS WHEN THE INPUT IS CONNECTED ccccecececececececececececececececececececececececececececececesecs 11 12 3 THE CONVERTER STARTS AND STOPS REPEATEDLY ccccccececececececececececececececececececececececececececececeeecececeeecececcs 11 12 4 THE CONVERTER STOPS AFTER SEVERAL HOURS 1 ccccececececececececececececececececececececececececececececececececececececececececs 11 12 5 FAULT REPORT 0c0cscesscscececevevs vv sv cove co EA sv nha ut sum u asha kt u a au S US suyo 12 10275 8 doc Polyamp AB Sweden Page 3 14 POLYAMP INSTALLATION MANDAL 1 Before installation Before installation we recommend that you read this and next section of this manual If any problem occurs consult 12 Trouble shooting If the converter includes a fan please notice 11 Maintenance On the front panel label the following is displayed Converter type input voltage range nominal output voltage serial number options and article number The converter type name consists of model name PC1000 PC1400 or PC2000 followed by input code and output voltage Two examples Type 2000 110 48 has input code 110 and nominal output voltage 48Vd c Type 1000 24 24 has input code 24 and nominal output voltage 24Vd c If you intend to parallel connect the output please check that option C is supplied It means series diode on output Inp
3. Sh 2W3 1 1 SU sna SHVHS LNSYHND 123NNOJ3 H31H3ANO2 10275 8 doc Page 14 14 A s aE HLSN331 40 S338v3 indinO 3AVH de OL SI LI SNIHVHS 1N3HHf2 qDDS 3A3IH2V OL 72 Ment Ege pt saras f TA Ki 1 G3ddInD3 I T 38 15 SH31H3ANO2 0 i fna E d 4 5 ino ull ino 1 Le 1 WIE T ino 1 4 NE FF rH Wai SET fn A ina A wr wo US ino Nr ino NE y un al 8 2 5 I 5 T n I E 2 Figure 9 Two supply systems with common load and parallel converter outputs Polyamp AB Sweden
4. earth the fuse shall be on the pole not in connection with the protective earth PC1000 input fuses Input voltage code Time delay fuse 24 63 A Siemens 3NA3 022 48 35 A Siemens 3NA3 014 110 16 A Siemens 3NA3 005 220 10 A Siemens 3NA3 003 PC1400 input fuses Input voltage code 48 50 A Siemens 3NA3 020 110 20 A Siemens 3NA3 007 220 10 A Siemens 3NA3 003 PC2000 input fuses Input voltage code Time delay fuse 48 63 A Siemens 3NA3 022 110 25 A Siemens 3NA3 010 220 16 A Siemens 3NA3 005 Table 1 Recommended input fuses There are two reasons we do not include the fuse 1 DC networks should be fused at the distribution point to protect the cable 2 Different applications require different types of fuses To meet the EMC specifications in the enclosed declaration of conformity use twisted pairs for connecting input output alarm inhibit and voltage sense Shielded cables are not necessary If the converter is mounted in an electric vehicle an external series diode on the input is recommended Please contact your Polyamp dealer If the converter supplies a DC motor we recommend an external parallel diode at the motor poles to protect against reverse voltages 10275 8 doc Page 4 14 POLYAMP LALA D EelkPCHWINSTAEDATION MANDAL For the disconnection ability an external disconnection device which is able to disconnect both polarities shall be incorporated with the input
5. fuse with fast characteristic and the short circuit current is 50A The data sheet gives you that At 10ms The output voltage is 24V and you can accept 10 voltage drop gt AU 24 x 0 12 2 4V The capacitance you need C 1 2x Isx AL AU2 12x 50x 0 01 2 4 250 000uF Choose a capacitance with a rated voltage of at least 115 of nominal output voltage of the converter Repeat this calculation for all branches and choose the highest capacitance value 3 Itis sometimes difficult to estimate the short circuit current when the nature of a fault is unknown In this case a voltage dip might appear under some short circuit conditions even with a large capacitor present If a voltage dip is critical in one branch it is recommended to use a separate DC DC converter supplying this branch Polyamp AB Sweden 1 20 F2 pc 21 F4 Figure 4 Connecting multiple loads 5 Alarm The alarm relay switches to ALARM state if e The output voltage is not within 15 10 of nominal output voltage e The converter is overheated Otherwise the relay contact is in the position NORMAL as printed on the front panel The alarm relay can be connected in two ways 1 Normally Open NO i Connect twisted pair 0 25mm 1 5mm from centre pin of the removable alarm connector and connector pin marked ALARM 2 Normally Closed NC i Connect twisted pair 0 25mm 1 5mm from
6. power supply cord The disconnection device must be properly labelled and easy accessible 2 Installation The converter is supplied with mounting brackets intended for 19 rack mounting The PC1000 converter is convection cooled and in order to get sufficient cooling there shall be a minimum of gt 30 mm space around the unit except for the sides PC1000 is only intended for horizontal mounting PC1400 and PC2000 use an internal fan and need therefore minimum gt 30mm space around the unit except for the sides The cooling fins at the rear shall never be covered The fan cooled versions can be mounted in any direction For mounting plate or chassis mounting please use the L220 1 brackets Note that the expected life of the converter is dependant on converter temperature For every 10 C that the temperature is lowered the expected life is approximately doubled It is therefore crucial to cater for good ventilation and if possible to reduce ambient temperature To meet the EMC specifications in the enclosed declaration of conformity use twisted pairs for connecting input output alarm inhibit and voltage sense Shielded cables are not necessary On 24 and 48 input code the input cables are individual On 110 and 220 input code use a cable cord with external approved insulation for the Primary circuit and Secondary hazardous voltage rating Polyamp AB Sweden 1 Remove front cover with 4 screws On 24 and 48 inputs separa
7. the external input disconnecting device or in the input fuse holder due to bad contact 3 Your supply does not have enough current capacity so the input voltage to the converter drops below specified limit 12 4 The converter stops after several hours If the red OVER TEMP LED is lit the unit has not sufficient cooling or the ambient temperature is too high e See 5 2 Over temperature on page 8 for further information e Ifthe converter includes a fan Check that it is working If not replace it See 11 Maintenance 10275 8 doc Page 11 14 POLYAMP nna p qoiiupONINSPUDDEFIONMANUAE 12 5 Fault report We suggest that you return a faulty converter to POLYAMP AB Backgatan 10 SE 597 53 ATVIDABERG SWEDEN Telephone 46 120 85400 Telefax 46 120 85405 Email info polyamp se www polyamp com Or to your local Polyamp distributor To help us locate the fault please describe the fault and how and when it occurred 10275 8 doc Polyamp AB Sweden Page 12 14 POLYAMP PC1000 PC2000 INSTALLATION MANUAL N A 10 887 OESEOZ ou uod aza T puoi UD gprs eal ll 00020 009104 seues 000224 Beatie to sa m al 3 o Japso M cpm der YUU ul quu sse pue uez gt Oo009 TM OTOTOT O
8. GE 00000 0 0100 8 5 2 OVER TEMPERATURE oet o pP beni on PIG EO GRIGIO PICO EE 8 Ce lO Nl DESEE 9 6 1 EXTERNAL SENSE ccccccccccccececccccecececececececececececececececececececscscesececesesesevesesevsveseseseseseseveseseseveseseveseseseseseseveseveves 9 S A E IOE 9 8 OUTPUT OVER VOLTAGE PROTECTION 9 9 INRUSH CURRENT LIMIT cnnan nara aoaaa s a aot aae asserere eie SECRE aaee CE ES Ees Seia esses oia 10 10 ISOLATION VOLTAGE TEST vcsiscscsoscossccecsovsesoovovsetecsevasnesoesesecsovsesesesseveuveteadeososducescesoesecdeloesessessoevssescoses 10 TOT DC ISOLATION TEST OUTPUT TO CASE I tere Susa Nee a a a eb ar e paye Vou Ever V ee 10 10 2 DC ISOLATION TEST INPUT TO OUTPUT AND INPUT TO CASE ccccccececececececececececececececececececececececececececececeeecs 10 10 3 AC ISOLATION TEST INPUT TO OUTPUT AND INPUT TO CASE ccccccecececececececececececececececececececececececececececeeeeecs 10 11 eae sastscoosenteesecaeesscasdcbeseesecbaceonsoUdeteasssaseseiabactastesusescesys 11 Wi BiU e 11 121 THERE IS NO OUTPUT VOLTAGE eese diver VN e OIN
9. LYAMP p pei MANUAL distribution point has the same length The plus poles can either be connected as in Figure 3 or have separate cables to the load At light load if the total load is less than 5 of the total rated power the yellow CUR SHARE LED might flicker between the units As the load changes different units CUR SHARE LED might be lit this is normal During normal operation in a paralleled system the CUR SHARE LED is lit on at least one unit but it may be lit on some or all of the paralleled units The purpose of the CUR SHARE LED is not to indicate if current share is working or not but to facilitate the voltage adjustment see below Parallel output connection of several converters powered by two input voltage sources See Figure 9 sas 7P A 16444 4 ll a 4 0AA 24 1 7 Ty amma Figure 3 Current share connection with series diode 3 3 Voltage adjustment with current sharing The converters must be running with 5 of nom load or more and the current share must be connected If each converter output voltage is adjusted to the same voltage which they are at delivery the yellow CUR SHARE LED might be lit on most units To increase the output voltage 1 Choose a unit where the CUR SHARE LED is lit Turn the V ADJ potentiometer clockwise until you reach your desired output voltag
10. POLYAMP TAP pelidkPCHRINSTAUDATIONMANUAE PC1000 PC1400 PC2000 Installation manual Schulz y Electronic Professional Power Supplies Schulz Electronic GmbH Dr Rudolf Eberle Strafe 2 D 76534 Baden Baden Fon 49 7223 9636 30 Fax 49 7223 9636 90 vertrieb schulzzetectronic de www schulz el ctronic de 10275 8 doc Mailing address Visit Shipping Telephone Telefax Postalgiro 68 13 25 7 Box 229 10 46 120 85400 46 120 85405 Merita NB 3259 18 01290 SE 597 25 ATVIDABERG SE 597 53 ATVIDABERG SEB 5403 10 05571 Main residence Sollentuna http www polyamp com e mail info polyamp se VAT no SE556103276301 Page 1 14 POLYAMP LAL pc1900 PC2000 INSTALLATION MANUAL Warranty All Polyamp DC DC converters are warranted against defective material and workmanship This warranty is valid for 24 months from the date of delivery We will repair or replace products which prove to be defective during the warranty period The warranty is valid only if the converter is used within specification Manual This manual is as complete and actual as possible at the time of printing However the information may have been updated since then Polyamp AB reserves the right to make changes in this manual without notice The exclamation point within an equilateral triangle is intended to alert the user to presence of important operating and maintenance instructions in the literature accompanying The lightning flash
11. adjusting the output voltage is described in 3 3 Voltage adjustment with current sharing on page 7 6 When the converter is to be disconnected switch off the input voltage with the disconnecting unit Disconnect the input cables first then output and last the protective case connection 10275 8 doc Page 5 14 POLYAMP LAA DP eio PO INSTALLATION MANDAL Figure 1 Cable connection for 24V and 48V inputs Figure 2 Cable connection for 110V and 220V inputs 3 Parallel connection If a redundant power supply system is requested two or more converters can be connected in parallel To achieve redundancy the number of converters must be dimensioned to carry the whole load even if one converter is faulty The unit you will install must be equipped with option C series diode please check on the type code label You should not use external sense when there are several units connected in parallel on the output Polyamp AB Sweden 3 1 Series diode on the output The series diode protects the converter output from external voltage sources A series diode is necessary if the output is connected in parallel with another power supply or if you require redundant operation If a converter breaks down with an internal short circuit on the output and other converters are connected in parallel on the output the broken unit will short circuit the others if the series diode is not used This might cause excessive heat or eve
12. at the load is critical The converter regulates the voltage at the load and not at the output of the converter and does thereby compensate for voltage drop in the cables between the converter and the load The maximum voltage compensation is 5 of nominal output voltage The regulation accuracy is 0 296 with sense Do not disconnect the negative power connection from the converter to the load before the positive when the converter is running and external sense is used This might damage the converter and it is also not advisable for your own protection to make adjustments in the installation with voltage applied Polyamp AB Sweden 1 Connect a twisted pair 0 25mm 5mm between the sense terminals of the converter and the load see Figure 5 The sense leads and the power cables shall be of approximately the same length and drawn as close to each other as possible Beware of correct polarity Plts i k A SM t Figure 5 External sense 7 Inhibit The converter is shut down if the inhibit input is short circuited by a relay or an electrical switch The current through the short circuit is 20mA Note that there is no electrical isolation between the inhibit and the output 1 Use a twisted pair 0 25 1 5mm with a maximum length of 3 0m for connection of the inhibit 8 Output over voltage protection All models are equipped with an internal output over voltage protection circuit OVP It
13. centre pin of the removable alarm connector and connector pin marked NORMAL The relay is isolated 2500Vd c from input output and case The relay can switch maximum 30V 5A a c and d c values 5 1 Over and under voltage alarm The alarm relay switches to alarm and the REG NOT OK LED is lit when the output voltage is approximately 15 higher or 10 lower than nominal output voltage 5 2 Over temperature All models have thermal protection If the converter is overheated it shut down the output till the operating temperature has decreased The OVER TEMP LED is lit and the alarm relay is set to alarm This will not occur in normal operation with an ambient temperature 10275 8 doc Page 8 14 POLYAMP LATA D EelikPCHWINSTAEDATION MANDAL below 55 C when the unit has sufficient cooling The converter type PC1000 is convection cooled and there should be a minimum of 30 50mm of free space at upper and lower parts of the converter If this is not possible we recommend the use of an external fan Note that the expected life of the converter is dependant on converter temperature For every 10 C that the temperature is decreased the expected life is approximately doubled It is therefore crucial to cater for good ventilation and if possible reduce ambient temperature 6 Sense 6 1 External sense Without external sense connected the output regulation is 0 596 External sense is used when voltage regulation
14. cur during this test If your isolation test equipment cannot supply this current you can perform a DC isolation test with 4300Vd c Follow the instructions in 10 2 DC isolation test input to output and input to case but test with 4300Vd c instead 10275 8 doc Page 10 14 POLYAMP LALA D cion PO INSTALLATION MANUAL of 2500Vd c The leakage current should not exceed 5u A AC isolation test 1 Disconnect all cables from the converter 2 Connect the output terminals of the converter to case See Figure 7 3 Connect the input terminals together 4 Connect your isolation tester between input and case See Figure 7 Raise the voltage of the isolation tester from 0 to 3000Va c The voltage should not be applied for more than one 1 minute or the Y capacitors might be damaged 5 Turn off the isolation tester and discharge the test voltage with 10 resistor between input and case 11 Maintenance A converter that includes a fan has to be subject to maintenance The fan needs to be replaced by a new one every 5 year Instruction how to replace it see Figure 8 The fan has article no 203330 and can be ordered from Polyamp AB address see below 12 Trouble shooting 12 1 There is no output voltage 1 Check that the input fuse is not broken 2 Check that the input voltage polarity is correct 3 Check that the input voltage is within the specified limits see front label 4 If only the r
15. e 2 The other units should now also be adjusted to approximately the same output voltage otherwise the output voltage will drop if the master converter breaks down Turn the V AD J potentiometer slowly clockwise on Polyamp AB Sweden the other units until the CUR SHARE LED is lit or almost lit To decrease the output voltage 1 Turn the V ADJ potentiometer approximately one 1 turn counter clockwise on all converters but one This will not affect the output voltage yet 2 Turn the V ADJ potentiometer counter clockwise on the remaining converter if your load current exceeds 5 of the total rated current this should be the only unit with the CUR SHARE LED lit until you reach the output voltage you desire If you turn more than one 1 turn counter clockwise you must repeat from step 1 3 The other units should now also be adjusted to approximately the same output voltage Otherwise the output voltage will drop if the master converter breaks down Turn clockwise on the V ADJ potentiometer on the other units slowly until the CUR SHARE LED is lit or almost lit 4 Multiple loads at the output If you are using several loads we recommend fusing them separately with fast acting fuses on the positive output branch Some considerations regarding short circuits should be taken See below 4 1 Short circuits 1 If there is a short circuit in one branch and the total current in all branches does not exc
16. ed NOT OK LED is lit the converter may be in current limit due to excessive output current or an external short circuit on the output e Disconnect the input e Disconnect the load e Connect the input again and measure the output voltage If the converter now starts the load was too heavy or there was a short circuit e If there is an external short circuit remove it e Ifthe load is too large decrease the load or consult your Polyamp dealer 5 Check that the INHIBIT input is not short circuited See 7 Inhibit on page 9 Polyamp AB Sweden 6 Check that the SENSE is connected correctly See 6 Sense on page 9 7 The unit is broken Contact your Polyamp dealer 12 2 The input fuse blows when the input is connected 1 Check that the input voltage polarity is correct 2 Check that the input fuse is of time delay type and with correct current rating See Table 1 All models have inrush current limit Fore further information consult 9 Inrush current limit on page 10 3 The unit is broken Contact your Polyamp dealer 12 3 The converter starts and stops repeatedly All models have an over under voltage protection on input which shuts down the converter if the input voltage is not within specified limits see front label 1 The cables to the converter input may be under sized causing too high voltage drop in the supply cables 2 Check that there is not excessive voltage drop in
17. eed 105 of the nominal current of the converter see label on front panel the output voltage will not be affected The time for the fuse to blow can be calculated from the data sheet of the fuse if you know the short circuit current trough the fuse 2 If there is a short circuit in one branch and the total current in all branches does exceed 105 of the nominal current of the converter the output voltage will drop until the fuse is blown Depending on the impedance of the short circuit whether it is abrupt or merely an overload and the resistance of the load cables the effects of a short circuit will vary 10275 8 doc Page 7 14 POLYAMP LALA pe PCHWINSTAEDATION MANUAL Long cables reduce short circuit currents resulting in longer delay until the fuse is blown and hence an increased voltage dip Light overload does not necessarily result in a blown fuse To reduce the voltage drop at short circuit and if any branch has more than approximately 30 of the total output current of the converter a large external capacitor is recommended Such a capacitor will supply the peak current needed to blow the fuse see Figure 4 To calculate the capacitor needed use the following formula C 1 2x Isx At AU 1 2 Safety margin Short circuit current through the fuse At Time before the fuse blows see data sheet on the fuse AU z Acceptable voltage dip before the fuse blows Example You have a 5A
18. ether Connect your isolation tester between output and case See Figure 6 4 Raise the voltage of the isolation tester from 0 to 2500Vd c Check that the leakage current does not exceed 5p The voltage should not be applied for more than a few seconds or the Y capacitors might be damaged 5 Turn off the isolation tester and discharge the test voltage with a 10 MQ resistor between output and case Polyamp AB Sweden ri m i Figure 6 Output to case isolation voltage test 10 2 DC isolation test input to output and input to case 1 Disconnect all cables from the converter 2 Connect the output terminals of the converter to case Connect the input terminals together 4 Connect your isolation tester between input and case See Figure 7 Raise the voltage of the isolation tester from 0 to 2500Vd c Check that the leakage current does not exceed Su A The voltage should not be applied for more than a few seconds or the Y capacitors might be damaged 5 Turn off the isolation tester and discharge the test voltage with a 10 MQ resistor between input and case Figure 7 Input to output and input to case isolation voltage test 10 3 AC isolation test input to output and input to case You can also test 3000Va c for one 1 minute between input to output and case on units with input codes 110 220 Beware of the rather high capacitive earth currents about 100mA that will oc
19. n fire in the faulty unit If the series diode is used the alarm relay will switch to ALARM on the faulty unit if one converter breaks down in a redundant power supply system Otherwise there will be no alarm indication from a faulty converter unless all units are in current limit and the output voltage drops 10 below nominal output voltage On models with option C the output power of the converter is derated See data sheet e On 24Vd c output by 10 On 48Vd c output by 5 Do not forget to fuse the inputs separately to achieve redundancy 3 2 Current sharing All models include the automatic current sharing feature which we recommend to use in parallel configuration A maximum of 10 units can be connected in parallel If more than 10 units should be connected in parallel contact Polyamp Connect a cable 0 25 1 0mm with a maximum length of 3 0m between the CURRENT SHARE connectors of all units The converter with the highest output voltage will then automatically become current master This converter will then run with a few percent higher output current than the others If the master converter for some reason breaks down another converter automatically becomes current master To achieve good power sharing the voltage drop between the minus poles must be kept as low as possible see Figure 3 It is important that all cables between the converters and the 10275 8 doc Page 6 14 PO
20. te inlets On 110 and 220 input code put the cable into the cable inlet and fix it with the cable clamp after connection See Figure 1 Cable connection for 24V and 48V inputs And Figure 2 Cable connection for 110V and 220V inputs 2 First connect protective earth in connector K3 marked with an earth symbol Then connect the input 3 Connect the output The converter output is short circuit proof by a constant current limit which works unlimited in time Therefore there is no need to fuse the load unless you use multiple loads see below The current limit is fixed to 105 of nominal output current e Ifthe converter is to be connected in parallel at the output or if you use current sharing for equal current sharing please consult 3 Parallel connection on page 6 e If you intend to use multiple loads please consult 4 Multiple loads at the output on page 7 e If you intend to use the alarm please consult 5 Alarm on page 8 e If you intend to use output voltage sense please consult 6 Sense on page 9 e If you intend to use inhibit please consult 7 Inhibit on page 9 4 Mount the front cover 5 Start the converter with your external input disconnection device e The output voltage can be adjusted 10 to 5 of nominal output voltage with the potentiometer marked V ADJ on the front panel Clockwise turn increases the output voltage The potentiometer has 15 turns If you are using current sharing the procedure of
21. u Hed QU EIE bli MaS XZ dtes ou Hed h aqejd poddns 79 ou Hed I JON Xb TZTOT ou Hed PIN J YSEM Xp ZOSTOZ ou Hed bli MoNS Xb ynu pue Jeysem M S sAOWWSY S e3eid do3 y x pseog yna uej 3 euuo sip pue spuemdn do y IAOW ZOSTOZ OU Hed MaS X9 Otttoc MU cm doi ay uo mans f POLTOT OU Hed EW J9USe M XS 805702 Ou Hed EW MaS XG 12402 ay uo J ysem pue Mads o OUl9N E T9STOT Hed EW MS XZ yue BY uo M S Z T9STOT Ou Hed EW MaS Xb joued 3uojj y T J p10 Buipueuusiq ueJ rains ry fms Pl en ty Rashes r Figure 8 Replacing the fan 10275 8 doc Page 13 14 Polyamp AB Sweden PC1000 PC2000 INSTALLATION MANUAL POLYAMP 2 6 25 NOLL23NNO2 TN LL oa agei2d E anes 1 1 1041 SH3lH3ANOJ B NVHL 3HOMW mI Ee eee l23NNO3 LON Od SNIHVHS Q009 3HISN3 OL AH3AI 13G HILSN31 G3r lddflS LON 534010 1 ATIVNLNAAS JO WE NVHL 38 LON 5 338v3 JHL SNOSV3H wi cc ain wa
22. ut output and case are galvanically separated from each other You can thus choose how you want the system connected The output can be connected with any pole to protective earth or as a floating output with max 150V to the protective earth It means that maximum 3 units can be put in series The electrical safety system is a class I which means that protective earth has to be connected The 110 and 220 input code models can also be used as class II equipment without protective earth Although units installed in dirty environments shall be connected to protective earth On 110 and 220 input code the feeding system can be defined as Primary circuit Max 250Va c and as Secondary circuit On 24 and 48 input code the feeding system can be defined as Secondary circuit voltage and SELV voltage The cables used for input and output feeding shall be dimensioned to fit the fuse rating and continuous current as well as intended ambient temperature range and insulations demand due to the voltage used The input is protected against reverse polarity by combination circuit with inrush current Polyamp AB Sweden limit circuit If reverse voltage occurs at installation the converter will not start The reverse voltage will not cause damage to the unit The input shall be fused with an approved fuse with high breaking capacity We recommend following fuses ratings and fuses Please note that in installation class I with protective
23. with arrowhead within an equilateral triangle is intended to alert the user to presence of un insulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons Caution To prevent the risk of electric shock do not open enclosure No serviceable parts inside Refer servicing to qualified service personnel only 10275 8 doc Polyamp AB Sweden Page 2 14 POLYAMP abu Je Feli PCHINSTAELATION MANUAL CONTENTS LI BEFORE INSTALLATOIQN eroe ee eoe se suo heo roo Ego ane rosen rege Prague ue eva deb esM 4 5 5 3 PARALLEL bea e so ask Te e PE TR saetaseesaseccoosseddedenseasseonbcnccbansscestscesoass 6 2 1 SERIES q ou PIN 6 3 2 CURRENT SHARING aene ave NV a A ie I ee VIN ip ies 6 3 3 VOLTAGE ADJUSTMENT WITH CURRENT SHARING cccccscececececececececececececececececececececececececececececeeecececececececesecs 7 4 MULTIPLE LOADS AT THE OUTPUIT 7 PM INS 5 9 4M Ol i 0 0 VERREM 7 5 8 5 1 OVER AND UNDER VOLTA
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