Kenwood PD8-20 User manual

PD8-2Q/20D
PD8-30/30D
PD18-20/20D
PD18-30/30D
PD35-20/20D
REGULATED
DC POWER SUPPLY
INSTRUCTION MANUAL

CONTENTS
GENERAL 3
FEATURES 3
SPECIFICATIONS ........... 4
PRECAUTIONFORUSE7
CONTROLSANDINDICATORS8
FRONTPANEL8
REAR PANEL.. . . ........ ..10
OPERATION12
AS A CONSTANT-VOLTAGEPOWERSUPPLY12
AS A CONSTANT-CURRENTPOWERSUPPLY12
HOWTOCHECKVOLTAGEANDCURRENT13
HOWTOSETOVERVOLTAGEPROTECTION(OVP) LEVEL 13
APPLICATION..13
USE OFREAR-PANELTERMINALS13
REMOTESENSING... 13
REMOTECONTROLOFCONSTANTVOLTAGE(RESISTANCE• VOLTAGE)14
REMOTECONTROLOFCONSTANTCURRENT(RESISANCE• VOLTAGE)16
SERIES/PARALLEL-CONNECTED OPERATION17
CONSTANT-CURRENTCHARGING/DISCHARGINGOFBATTERY20
MAINTENANCEANDADJUSTMENT21
MAINTENANCE21
ADJUSTMENT23
TROUBLESHOOTING....25
DIMENSIONS 26
*This manual coversthetenmodels; PD8-20, PD8-20D,
PD8-30, PD8-30D, PD18-20, PD18-20D, PD18-30,
PD18-30D, PD35-20 and PD35-20D. Pleasereadthe
descriptionsapplicabletoyourmodel.

GENERAL
FEATURES
The PD series arecompactDCpowersuppliesregulatedby
phase control.Theyhavesufficientreliabilityandaccurate
electrical characteristicsandaresuitablefor research, ex-
periments, agingofmanyhours,andforcontrol,etc.Theyare
provided also with meansofprotectionandremotecontrol.
They aredesigned totally forthe ease ofuse.
*The size iscompactowingtothebuilt-inphase-controlled
preregulator.
*Characteristicsofvoltageregulationandagainst noises in-
cluding ripplesareverygood.
*Bothvoltageandcurrentvary little with temperature.
*Theoutputvoltagemaybechangeableinsmall steps with
a potentiometerturnableasmanyastenpositions.
*TheV/l CHECK switchprovidedpermitsto check the
preset valuesofvoltageandcurrentevenduringoperation.
*TheOUTPUTswitchturnsonandofftheoutput.
*Protectioniscomplete from overvoltage,overcurrent,and
excessive temperature rise. TheOVP CHECK funcitonpro-
videdpermitstopresettheovervoltageprotectionleveland
check thepresetlevelduringoperation.
*Master/slavecontrolispossibleby series andparallel con-
nections.
*Theoutputvoltageandcurrentmayberemote-controlled
using anexternal resistance orexternal signals.
*Rapidtransient characteristics aregood.
3

SPECIFICATIONS
Model PD1
8-20/20D 8-30/30D
18-20/20D 18-30/30D 35-20/20D
Output
Outputvoltage10-positions Oto8 \ Oto8 V Oto18V Oto18V Oto36V
Resolution (theoretical) 1.4mV 1.4mV 3.1mV 3.1mV 6.2mV
Outputcurrent 1 -position 0to20A 0to30A 0to20A 0to30A 0to20A
Resolution (theoretical) 30mA 45mA 30mA 45mA 30mA
Voltageregulation(CV)
With input changes of±10% Note 1) 0.005%+1mV
With load changes ofOto100% Note 1) 0.005%+1mV 0.005%+2mV
Ripples/noises f 10Hzto1 MHz)rms Note 2) 0.5mVrms
Transient response, (standardvalue) 100
jisec, typical
Temperaturecharacteristic,(standardvalue) 100ppm/°C,typical
Remotecontrolresistance/voltage approx.Oto10k0/0to10V
Current regulation(CO
With inputchangesof±10%
2 mA
3 mA
5 mA
5 mA
5 mA
With loadchangesof0 to100%
5 mA
5 mA
5 mA
5 mA
5 mA
Ripples/noises (10HztolMHz)rms Note 2)
5 mArms 10mArms 10mArms 10mArms 10mArms
Remotecontrolresistance/voltage approx.Oto10kfi/Oto10V
Protection
Operation
Turns offpowerswitch
Temperaturedetection 100°C
Overvoltageprotectionlevel(standardvalue) 15to110%ofratedoutputvoltage
4

Model PD
8-20/20D 8-30/30D
18-20/20D 18-30/30D 35-20/20D
Meter andindications
Voltmeter (class 2.5)F.S
8 V
8 V
18 V
18 V
36 V
Ammeter fclass 2.5)F.S.
20 A
" 30A
20 A
30 A
20 A
Dtype
Voltage at digitaldisplay(Autorange) 3-1/2digits
19.99V,199.9V (FS) two ranges
±10.1% rdg+1 digit)23°C±5°C; Less than 80^ :
Dtype
Current at digitaldisplay(Fix.range)
3 digits 99.9A (FS),±(0.5%rdg+1digit)23°C±5°C, Less tte,• o0%
Indication of constantvoltageoperation
CV greenLEDlights
Indication of constantcurrentoperation
CC red LEDlights
Indication of output
OUTPUT red LEDlightswhenturned on
Function
Outputswitch
Turns onandoff output
(presetvoltageindicatedwithmeterduring off time)
Voltage/current check switch
Preset voltage and currentindicatedwithmetersduring on time
Overvoltageprotection(OVP)preset
Indicates the overvoltageprotectionlevel onthe voltmeterduring on time
Remote sensing
Via the rearpanel senser terminal
Series control
Master/slave control (series controlis not possiblewith 10V maximumoutputmodels.)
Parallel control
Master/slave control
Operatingconditions
Temperature 0°C
to 40°C
Humidity
Less than 80%
Cooling
Fan
Outputpolarity '
Positive or negativesidegrounded
Withstandvoltage to ground ±250VDC
Insulation resistance
Chassis-input line 30
MQor more at500VDC
Chassis-output line 20
MQ or more at500VDC
5

Model PD
8-20/20D
.. 0/30D
18-20/20D 18-30/30D 35-20/20D
Power supply
Inputvoltage
AC 100V/120V/200V/220V ±10%,216V - 250V,1 <j> selec
tableinternally
Power consumption(atAC100V) Approx.420W Approx.590W Approx.620W Approx.930W Approx.1 kW Power consumption(atAC100V) Approx.670VA
Approx.960VA Approx.1 kVA Approx.1.4kVA
Approx.1.5kVA
Dimensions andweight
Enclosure dimensions
(W) 208 208 208 208 208
Enclosure dimensions (H) 147 147 147
'• \r 147
Enclosure dimensions
(D) 348 457 420 457 420
Maximum dimensions
(W) 208 208 208 208 208
Maximum dimensions (H) 168 168 168 168 168 Maximum dimensions
(D)(includingpowerinputconnector 411 520(523) 483(486) 520(523) ,](48
Weight Approx.
1 5 kg Approx.20kg Approx.19kg Approx.24kg Approx.23kg
Accessories
Instructionmanual
1 1 1 1 1
Inputpowercord 100V,120V area
2 or3-core
AC cable(2m)
2 or3-core
AC cable(2.5m)
2 or3-coreACcable(2.5m)
Inputpowercord 200V,220V,240V area 3-coreACcable(2m) 3-coreACcable(2.5m)
Connector retainer 100V,120V area NONE
1 1 1 1
Connector retainer 200V,220V,240V area NONE NONE NONE
1 1
Fuse
100V,120V area 10Ax2 15Ax2 15Ax2 20Ax2 20Ax2
Fuse
200V,220V,240V area 4Ax2 6Ax2 8Ax2 10Ax2 10Ax2
Notes:1.Measuredviathe sensing terminal.
2. Measured with plusorminusgrounded.
•Circuitandratingsaresubjer*tochangewithoutnoticeduetodevelopmentsintechnology.
I

PRECAUTION FORUSE
1)CHECKINGINPUTVOLTAGE
1)Keepthepermittedrangeofinputvoltage.Single
phase, 100/1 20/200/220/240 V AC,±10%,
50/60 Hz
2)TheadaptedinputvoltageisindicatedattheACinput
terminalontherearpanel.
3)Whenconvertedthelinevoltage,refertothesection
ofMAINTENANCE.
2)POWERCORDCONNECTION
Some modelshavea connectorretainerontheACcord
connector toholdthecord from slippingoff.
For safeoperation,besuretheretainerislocked.
3)OUTPUTCONNECTION
1) Make sure that therear-paneloutputterminalsand
controlterminalsareconnected with jumpersas
shown Fig.2.
2)Theoutputlinesarefloating.Connecteitherofthe
front-paneloutputterminalstoGNDnormally with
short bar.
4)ENVIRONMENTALCONDITIONS
11 Keeptheoperatingtemperaturerangeof0°to40°C.
Iftheambienttemperature rises excessively,the
device's protectionsystemworksandcutsoffpower.
2) Keepcleartheventilationopenings(at sides andbot-
tom)andthepassageoffanair.Installanyother
devices morethan30cmapart from thoseopenings.
3)Avoidtoinstallthepowersupplyina dustyplaceand
wheretherearemuchcorrosive gases.
4)Avoidtoinstallsensitiveinstrumentsonandbesidethe
powersupply.
1
Fig. 1
Outputterminalsofrearpanel
Controlterminals
Fig. 2

<FRONTPANEL>
CONTROLS AND INDICATORS
Fig.3
8

®POWERswitch
Whenturnedon,theindicatorsPOWERandeitherofCCand
CV light.Thepowerswitchisautomaticallycutoffwhenpro-
tection(overvoitage/overcurrnt/temperature)hasoperated.
©Voltmeter
Indicates theoutputvoltageorthepresetvoltage.
®Ammeter•
Indicates theoutputcurrentorthepresetcurrent.
® VOLTAGE
Control that presetsvoltageforconstant-voltageoperation.
Turnitclockwisetoraisetheoutputvoltage/
© CURRENT
Control that presetscurrentforconstant-currentoperation.
Turnitclockwiseto increases theoutput:current.
©CVindicator
Indicates duringconstant-voltageoperation.
©CCindicator
Indicates duringconstant-currentoperation.
©OUTPUTindicator
Red LEDindicateswhentheoutputison.Thepresetvoltageis
availableattheoutputterminalswhenthisindicatorison.
©OUTPUTswtich
Outputswitch(contactless) that turnsonandofftheoutput
electrically. Whentheoutputison{-—.),theOUTPUTindicator
®lightsandthevoltagethevoltmeterisreadingisoutputat
theoutputterminalsandtheammeterreadsthecurrent.
©V/l CHECK
Voltage/currentcheckswitch.Aslongasthisswitchis
depressed, thevoltmeterreadsthepresetvoltageandtheam-
meterthepresetcurrentso that youmaypresetvoltageand
current.Tocheckthepresetvoltageandcurrent,depressthis
switch whentheOUTPUTswitchison.
©OVP CHECK
Overvoltageprotectionlevelcheckswitch.Depressthis
switch andthevoltmeterreadsthepresetovervoltagepro-
tecitonlevelso that youmaypresetthelevel with theOVPad-
juster 12.
@ OVPadj.control
Semi-fixedadjustmentcontrolpermittingtopresettheover-
voltageprotectionlevel.
©Outputterminalf + J
Positive outputterminal(red).
©Outputterminal( —)
Negativeoutputterminal..(white).
©mo
Ground terminalconnectedtotheframe.Thisisconnected
also totheoutputterminal(—)normally,
©Voltmeterzeroadjuster
Adjuster ofthevoltmeterzeropoint.(NotforD type)
©Ammeterzeroadjsuter
Adjuster oftheammeterzeropoint.(NotforD type)
s

<REAR PANEL >
Fig. 4
10