Delta Elektronika SM 15-400 User manual

DC POWER SUPPLIES
DELTA ELEKTRONIKA B.V. Vissersdijk 4, 4301 ND
Zierikzee, the Netherlands
www.DeltaPowerSupplies.com
Tel. [phone]
SM6000-series
PRODUCT MANUAL
Contents:
1 - Datasheet
2 - Safety Instructions
3 - General
4 - Installation
5 - Trouble Shooting
6 - Maintenance & Calibration
7 - EC Declaration of Conformity
•SM 15 - 400
•SM 30 - 200
•SM 45 - 140
•SM 60 - 100
•SM 70 - 90
•SM 120 - 50
•SM 300 - 20
•SM 600 - 10

SM6000 SAFETY INSTRUCTIONS
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 2 - 1
2SAFETY INSTRUCTIONS - SM6000-series
1Caution
The following safety precautions must be observed during all phases of operation, service and repair of this equipment.
Failure to comply with the safety precautions or warnings in this document violates safety standards of design,
manufacture and intended use of this equipment and may impair the built-in protections. Delta Elektronika shall not be
liable for user’s failure to comply with these requirements.
2Installation Category
The Delta Elektronika power supplies have been evaluated to installation category II (Over voltage category II).
3Grounding of Mains Terminals (AC Power Terminals)
This product is a safety Class 1 unit. To minimize shock hazard, the unit must be connected to the AC Power Supply
mains through a four conductor power cable, with the ground wire firmly connected to an electrical ground (safety
ground) at the power outlet.
For units designed to be hard-wired to the mains supply , the protective earth terminal must be connected to the safety
electrical ground before another connection is made. Any interruption of the protective ground conductor, or
disconnection of the protective earth terminal will cause a potential shock hazard that might cause personal injury.
4Grounding of DC Power Terminals
If the DC power terminal of a unit is specified to sink or source to a maximum of 60VDC, and either the negative or
positive DC power terminal is grounded, the voltage on the DC power terminals and sense connections can be
considered safe.
Caution 1: If a low voltage unit has both DC power terminals floating, or if the DC terminals are in series with an
external high AC or DC voltage, the lower DC power terminal can exceed the safe value in respect to ground as
specified in the above warning!
Caution 2: Although a high voltage unit is set to a safe voltage below 60VDC, for safety it must always be considered as
a high voltage unit! Wrong operation, a programming error or an external defect can result in an unsafe high DC output
voltage.
Caution 3: When programming a high voltage unit directly via a PC or via a network connection, either ground the
negative power output or use a safety isolated interface!
For more information and schematics regards Grounding and Safety, see the special application note "Safe operation of
a power supply" on the Delta Elektronika website.
5Danger of electrical shock
Touching the contacts of the mains plug or wires directly after disconnecting from the mains can cause an electrical
shock. See next paragraph "Connection to the mains supply".
6Connection to mains supply
Either connect to the mains supply permanently or via an industrial type plug, complying with IEC 60309.
"Permanently connected equipment" or "Pluggable equipment type B".
7Fuses
Fuses must be changed by authorized Delta Elektronika service personnel only, for continued protection against risk of
fire.
8AC Input Ratings
Do not use an AC Supply which exceeds the AC input voltage and frequency rating of this unit. The AC input voltage
and frequency rating of the Delta Elektronika power supply series are stated in the accompanying datasheet.
9Live Circuits
Operating personnel should not remove the unit covers. No internal adjustment or component replacement is allowed by
non Delta Elektronika qualified personnel. Never replace components with the power cable connected. To avoid injuries,
always disconnect power, remove external voltage sources and discharge circuits before touching components.
10 Parts Substitutions & Modifications
Parts substitutions and modifications are allowed by authorized Delta Elektronika service personnel only. For repairs or
modifications the unit must be returned to a Delta Elektronika service facility.
Warning:
When the positive DC power terminal can exceed 60VDC in respect to the negative DC power terminal, additional
external measures must be taken to ensure safety isolation of the DC power terminals and sense connections.
Warning:
When the negative power output of the unit can exceed 60VDC / 42.4Vpk in respect to ground, additional
external measures must be taken to ensure safety isolation of the following:
- power outputs and sense connections
- programming/monitor/status-signals, Interlock, Master/Slave-connections, ACF/DCF-relay
- interfaces with operational isolation
- non-isolated interfaces.

SAFETY INSTRUCTIONS SM6000
Page 2 - 2DELTA ELEKTRONIKA B.V. rev. June 2018
Caution risk of electrical Shock
!
Instruction manual symbol. The unit will be marked with this symbol when it is
necessary for the user to refer to the instruction manual
Protective ground conductor terminal
oOff (supply)
IOn (supply)
WEEE (Waste Electrical & Electronic Equipment)
1Correct Disposal of this Product
Applicable in the European Union.
This marking shown on the product, its packing or its literature indicates that
it should not be disposed with other wastes at the end of its working life, but
should be collected separately to recycle it responsibly to promote the
sustainable reuse of material resources.
13 Canada
This product has been tested to the requirements of CAN/CSA-C22.2 No. 61010-1, second edition, including
Amendment 1, or a later version of the same standard incorporating the same level of testing requirements
14 cTUVus
11 Removal of (safety) covers
Safety cover(s) are used to cover potentially hazardous voltages.
Observe the following when removing safety cover(s):
•Switch off the unit.
•Disconnect the unit from the mains supply or power outlet.
•Wait for 5 minutes to allow internal capacitors to discharge.
•Unscrew the screws and remove the cover(s).
•Always place the cover(s) back before connecting the unit to the mains supply again.
12 Environmental Conditions
The Delta Elektronika power supplies safety approval applies to the following operating conditions:
•Indoor use
•Ambient temperature : −20 to 50 °C
•Maximum relative humidity : 95%, non condensing, up to 40 °C
: 75%, non condensing, up to 50 °C
•Altitude : up to 2000 m
•Pollution degree : 2

SM6000 GENERAL
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 3 - 1
fig. 3- 1
Output ranges. Every point in
hatched area can be used
SM 300-20
SM 120-50
SM 30-200
SM 45-140
SM 70-90
SM 60-100
SM 15-400
3GENERAL
1) OUTPUT
The SM15-400, SM30-200, SM45-140, SM60-100, SM70-90, SM120-50,
SM300-20 and SM600-10 can either be used as a constant voltage source
with current limiting or as a constant current source with voltage limiting.
Thechangeofmodeoccurssharplyatthecrossingofthevoltageandcurrent
settings. Figure 3- 1 shows the output ranges.
•DISPLAY CV/CC SETTINGS FUNCTION
The settings of the voltage and current control (also when programmed) can
be observed on the front panel meters by pressing the Display CV/CC Set-
tings button. This allows the current limit to be set when operating in the CV
mode without shorting the output terminals, and the voltage limit to be set
when operating in the CC mode without opening the load leads.
•OVERLOAD PROTECTION
The power supply is fully protected against all overload conditions, including
short circuit.
2) INPUT VOLTAGE
The power supplies have a wide input voltage range.
•The unit needs a 3 phase input voltage, but no neutral connection is re-
quired.
•The unit only operates on three phases. In case of Phase Loss, the
ACF-status (AC Fail) will be high, the ACF-LED will light and the output
shuts down after a few seconds.
3) INPUT CURRENT
The unit has active power factor correction (PFC). The input current will
therefore almost be a sine wave. This means that the RMS-value and the
harmonic distortion of the input current will be relatively low.
Thepeak inrushcurrent iselectronically limited.Switchingon andoffrepeat-
edly will not result in excessive currents like with NTC circuits.
4) STANDBY INPUT POWER
The unit consumes very little power when in standby. This makes it possible
to leave the input power on when the output is disabled using the Output
On/Off push button on front panel or the Remote ShutDown input (pin 5 on
connector CON E on the rear panel).
5) EFFICIENCY
The efficiency is very high and constant over a wide output current range.
High efficiency means low power loss and low heat generation.
6) CV REGULATION
The specified CV-load regulation value is measured directly on the output
terminals. This is because at high current, a few cm of cable can have a volt-
age drop of several mV.
7) CC REGULATION
For accurate CC-load regulation, do not use external voltage sensing.
A voltage between S- and minus output will create an error of about 0.04 %
per volt.
AvoltagebetweenS+and+isnotcritical.TheCC-stabilityis alsoaffectedby
external voltage sensing.
Note: when the unit operates in CC-mode, the DCF-LED will be on. When
the unit is in CC-mode most of the time, it is possible to disable the LED with
DIP switch 3 on SW1 (rear panel).
8) RIPPLE & NOISE
The output ripple is very low with almost no spikes. The specified ripple volt-
ageismeasureddirectlyontheoutputterminalsusingaprobewithveryshort
connections. This to avoid pick upof magnetic fields, see fig. 3- 2andfig. 3-
3.
At low temperatures like -20°C the ripple increases. By using high quality
electrolytic capacitors the increase is relatively low.
fig. 3- 2
Measuring ripple voltage
WRONG !
fig. 3- 3
Measuring ripple voltage
RIGHT !
SM 600-10

GENERAL SM6000
Page 3 - 2DELTA ELEKTRONIKA B.V. rev. June 2018
fig. 3- 4
Programming inputs (internal circuit)
9) ANALOG PROGRAMMING
Theoutputvoltageandcurrentcanbeprogrammedbyanexternalanalog
voltage. This programming is very accurate and linear. The levels are all
standardized on 5 V.
Standard theSM300-20andSM600-10areequipped with the ISO-AMP,
see next paragraph.
Fortheotherunits,theinputshave a protection circuit formed by aseries
resistor andaparallelzener (seefig. 3-4).Thecapacitorlimits thespeed
to a safe value. Note that the analog inputs (and outputs) are not float-
ing, but the common is connected to the negative output terminal.
Wrong connection of Øcan causeearthloopswhich can trip thefuse.Af-
ter removing the fault, the fuse will reset (PTC-fuse). For isolated pro-
gramming see next paragraph.
10) ISOLATED ANALOG PROGRAMMING
To prevent earth loops which can cause programming errors, use an iso-
lated programming source. If this is not possible, use the optional ISO
AMP CARD (δ-product) which can be built inside the unit.
With the ISO AMP CARD earth loops between the unit and the program-
ming source are prevented.
11) ETH / IEEE488 / RS232 / CAN / PROFI PROGRAMMING
The Delta Elektronika PSC-ETH, PSC-488, PSC-232, PSC CAN and
PSC PROFI controllers can be factory installed inside the unit.
Voltage and current can easily be programmed and read back. Also all
the status outputs can be read by the computer.
12) MONITORING OUTPUTS
The monitor outputs give a voltage 0 - 5 V proportional to the output cur-
rent or voltage. The output current can easily be measured using the
I-monitor (see fig. 3- 6). The monitor outputs are buffered with op-amp’s
andprotectedwithseriesresistorsandparallelzeners(seefig. 3-7).The
tableinfig.3-5 showstheimpedancelevelsofthemonitoringoutputs.
For using Imon on a pulsating load, see paragraph 20) of this chapter.
13) +12 V ON PROGRAMMING CONNECTOR
The +12 V onthe programming connector can beused to supply external
circuits. The output is current limited, but should not be overloaded. The
fuseF27_3onP598couldblow.ThefuseF27_3alsoprotectstheinternal
circuit, in case an external high voltage is applied by accident. Note: this
fuse is a special 600 V type, always replace with the same type.
14) STATUS OUTPUTS
All the status outputs arelogic outputs. Logic "0" means the output is0 V,
logic "1" means the output is 5 V (Ro = 500 Ohm). This makes it possible
to drive directly: an opto-coupler, a TTL gate or a CMOS gate.
The Limit Status or LIM-statusis"1"incasetheoutput voltageorcurrent
reaches the limit setting. Which limit circuit is active can be seen on the
front panel LED’s.
The Over Temperature Status or OT status is "1" in case of an over tem-
perature, the OT LED will be on and the output shuts down. As a
pre-warningtheOT LEDstartstoblinkwhen theunitrunshot butthesitu-
ation of over temperature is not reached yet. The status will still be low
when the LED is blinking.
fig. 3- 5
Connections ANALOG PROG. CONNECTOR
pin Description, see par.12)...17) for details
1Ø, return of reference, prog. inputs and
monitor outputs (Ro = 1.2 Ohm).
2current monitor output 0 - 5 V
(Ro = 1.2 Ohm, Io max = 4 mA)
3current programming input (0 - 5 V),
Ri = 8 MOhm
4CC status output, logic 1 = CC mode
(5 V / 500 Ohm)
5Remote ShutDown (4 - 12 V),
Ri = 5 kOhm
6PSOL status output, logic 1 = PSOL
(5 V / 500 Ohm)
7+12 V output
(Ro = 3 Ohm, Io max = 0.2 A)
8Ø, return of status outputs, +12 V
and Remote ShutDown
9reference voltage 5.1 V
(Ro = 1.2 Ohm, Io max = 4 mA)
10 voltage monitor output 0 - 5 V
Ro = 1.2 Ohm, Io max = 4 mA)
11 voltage programming input (0 - 5 V)
Ri = 8 MOhm
12 OT - status output, logic 1 = OT
(5 V / 500 Ohm)
13 LIM - status output, logic 1 = LIM
(5 V / 500 Ohm)
14 DCF - status output, logic 1 = DCF
(5 V / 500 Ohm)
15 ACF - status output, logic 1 = ACF
(5 V / 500 Ohm)
V
A
Imon
0-5V
Vmon
0-5V
Return of
ref, prog, mon.
fig. 3- 6
External meters
using monitor outputs
fig. 3- 7
Buffered monitor outputs

SM6000 GENERAL
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 3 - 3
The Current Control Status or CC-status output is "1" when the unit is in
CC-mode.
ThePowerSinkOverLoadStatusor PSOL-statusoutput is"1"whentheoptional
Power Sink is overloaded or overheated.
TheAC-FailStatusor ACF-statusoutputis "1"incaseof PhaseLoss orwhenthe
input voltage is below 340 VAC.
The DC-Fail Status or DCF-status output is "1" when the output voltage is either
5% below or above the set point.
WhentheunitisinCC-mode,DCFwillalwaysbe "1",seepreviousparagraph7).
15) STATUS RELAY OUTPUTS
The power supply has 2 status relay outputs, with each a change-over contact.
They are connected to connector CON D. The pins 1,2,3 are connected to the
DCF-relay and pins 4,5,6 to the ACF-relay (see fig. 3- 10).
16) FUNCTION SWITCHES ON SW1
In the following table the functions of the DIP switches 1-5 of switch SW1 at the
rear side are explained:
fig. 3- 8Location of output terminals and analog prog. connector on rear panel
Switch no. UP position DOWN position Default Setting
SW 1 - 1 Programmingvia15poleconnec-
tor CON E (analog). Optional programming with e.g. PSC-232,PSC-488,ISOAMPCARD Up
SW 1 - 2 ‘Output On’ after mains on ‘Output Off’ after mains on Down
SW 1 - 3 DCF LED enabled DCF LED disabled (DCF status and
DCF relay are still enabled) Up
SW 1 - 4 ParallelMaster/Slaveoperation Series Master / Slave operation Up
SW 1 - 5* After switching mains on, the unit
will start with the same settings
for the voltage and the current as
it had before switching mains off
After switching mains on, the unit will
always start up with a voltage setting
of 0 V and a current setting of 0 A.
Once the unit is switched on, the volt-
age and current can be set to the pre-
ferred value.
Down
* = SW1-5 only on SM300-20 / SM600-10 and on units with optional digital encoders (option P220).
CON A Interlock Connector
CON B Master connector for Master / Slave operation (output)
CON C Slave connector for Master / Slave operation (input)
CON D Relay Outputs, contacts 1 - 6
CON E Analog Programming Connector ( not available on SM300-20 / SM600-10, see CON H)
CON F PSC-232, from PC or previous PSC (optional)
CON G PSC-232, to next PSC (optional)
CON H PSC-488 (optional) or ISO AMP CARD (optional)
SM300-20 / SM600-10 standard with ISO-AMP instead of CON E.
SW 1 Various settings, see paragraph 16)
SW 2 Settings for PSC-488 and PSC-232 (optional) or
fig. 3- 9Connectors and switches on the rear panel
fig. 3- 10
Status relay outputs on CON D.
This situation gives the relay
positions during fault condition.

GENERAL SM6000
Page 3 - 4DELTA ELEKTRONIKA B.V. rev. June 2018
17) REMOTE SHUTDOWN (RSD)
A voltage of +4 V...+12 V on the Remote ShutDown input on the
programmingconnectorCONEwillswitchofftheoutputoftheunit.
It is also possible to use a relay contact or a switch to shut the unit
down (see fig. 3- 11).
In standby mode the power supply consumes very little power.
18) INTERLOCK
The Interlock connector CON A has 2 inputs (pins 1 & 3) which
have to be connected together to enable the unit, see fig. 3- 12.
As soon this connection is interrupted, the output of the unit shuts
down.It canbe usedincombinationwithdoorcontacts(safetypre-
caution) or as an emergency stop.
Incasetheconnection isinterruptedthe RSDLEDwilllight.Incon-
trast with Remote ShutDown, also the DCF LED will be on, DCF
status will be high and the relay contact will change. Once the in-
puts are reconnected, the output will be on again.
The interlock circuit is at the same level as the analog ground, the
S-andthe-output.Theinterlockcircuitneedsvoltagefreecontacts
andcannotbeconnectedinparallelorserieswithotherinterlocks.
19) PROGRAMMING SPEED
The rise and fall time is measured with a step waveform at the CV
prog. input. Programming from a low to a high output voltage is
nearly load independent, but programming down to a low voltage
takes more time on lighter loads. This is caused by the output ca-
pacitors, which can only be discharged by the load because the
power supply cannot sink current. With the Power Sink option,
also the programming down speed is nearly load independent.
When having a unit with a fast programming option, the rise and
fall time is 5 to 25 times faster (see datasheet). The programming
source must be floating or otherwise an ISO AMP CARD must be
used, a non-floating source will result in slope distortion.
When using fast programming it is generally not recommended to
useremotesensingorserial/paralleloperation.Consultfactoryfor
advice. Note that the output ripple is higher.
20) PULSATING LOAD
To avoid overheating the output capacitors, the AC component of
the load current should be limited (see fig. 3- 13).
One method of decreasing the AC current through the output ca-
pacitor is by using a large external electrolytic capacitor in parallel
with theload. Care must be taken sothat the capacitor incombina-
tionwiththeleadinductancewillnotformaseriesresonantcircuit!
When using remote sensing on a pulsating load (for instance a
DC-motor), use a capacitor in series with a resistor over the load
(see fig. 3- 14). Like this the AC-component caused by the pulsat-
ing of the load is filtered.
Note: in case ofa pulsating load, theI monitor voltage will not ex-
actlymatchtheoutputcurrent.Thisismainly causedbythecurrent
through the output capacitors. Remote sensing will worsen this ef-
fect.
21) INSULATION
For safety the insulation of the separating components (transform-
ers) between input andoutput is tested at 3750 Vrms during 1min-
ute. This is tested before assembly.
Warning! The 3750 Vrms cannot be tested afterwards on the
assembled unit because the insulation between the components
on the inputside to the case (like the bridge rectifier) is specified at
2500Vrms.Sincetheinsulationoutput-caseislow(only600VDC)
the insulation of the primary components to case will break down
when3750Vrmsisappliedbetweeninputandoutput(2500Vrms+
600 VDC < 3750 Vrms) (see also fig. 3- 15).
Note: when testing the insulation, take care to charge and dis-
charge the capacitors between input - case and output - case
slowly (e.g. in one second). This to prevent high peak currents,
which could destroy the power supply. Make sure to discharge the
capacitors completely before using it again.
fig. 3- 11
Remote Shut Down using a relay contact
1
3
2
fig. 3- 12
Interlock connection at CON A. Connect
between pin 1 and pin 3, do not use pin2.
fig. 3- 13
Pulsating load current
fig. 3- 14
Remote sensing on a pulsating load
fig. 3- 15
Insulation test voltages

SM6000 GENERAL
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 3 - 5
22) RFI SUPPRESSION
BoththeinputandoutputhaveRFIfilters,resultinginverylow
conducted RFI to the line and load. Due to the output filter the
output voltage is very clean, having almost no spikes.
23) OPERATING TEMP
At full power the operating temperature range is –20 to +50 °C.
From50to 60°Cthe output current has to bederatedlinearlyto
75 % at 60 °C (see fig. 3- 16). These temperatures hold for nor-
mal use, i.e. the ventilation openings on the left and right side
must be free.
24) THERMAL PROTECTION
A thermal switch shuts down the output in case of insufficient
cooling.The OT status will be high. After cooling down the unit
will start working again.
TheOT-LEDonthefrontpanelwill beon and theOT-status sig-
nal will be "1" in case of a tripped thermal protection.
As a pre-warning the OT-LEDblinks (status willstill be low), this
will start before the power supply shuts down.
25) HOLD - UP TIME
Thehold-uptimedependsontheloadandtheoutputvoltage.
A lighter load or a lower output voltage results in a longer hold -
up time (see fig. 3- 17).
26) TURN ON DELAY
The output voltage is available about 0.2 sec after mains switch
on.
27) INRUSH CURRENT
The inrush current is electronically limited.
Repeatedly switching on andoff does not change the maximum
peak current.
Switching on and off at a fast rate can overheat the inrush cur-
rent limiter. With the result that the unit does not start anymore.
After cooling down (mains switched off) it will be OK again.
28) PHASE LOSS
Phase loss means that not all three phases are available.
The ACF-status will be high, the ACF LED will light and the
output of the unit will shutdown after a few seconds.
29) REMOTE SENSING
Thevoltageat theloadcanbekeptconstant byremotesensing.
This feature is not recommended for normal use but only when
the load voltage is not allowed to vary a few millivolts. Always
use a shielded cable for sensing.
In order to compensate for the voltage drop across the load
leads, the unit will have to supply a higher voltage (see fig. 3-
18):
Uout = (voltage drop across each lead) + (voltage across the load).
The voltage limit reads the voltage directly at the output termi-
nals. The setting for thelimit must therefore be increased by the
total voltage drop across the load leads.
The voltage display on the front panel and the voltage monitor
output on CON E are connected to the sense leads and there-
fore read the voltage across the load and not the voltage on the
output terminals.
The sense leads are protected against accidental interrup-
tion. The maximum voltage between the output terminals and
the sense inputs is limited at 2.5 V.
For sensing on a pulsating load see paragraph 20) of this
chapter.
fig. 3- 16
Operating temperature ranges
fig. 3- 17
Hold-up time vs Vout with Iout as a parameter
fig. 3- 18
Remote sensing, voltage drop in load leads sub-
tracts from max. output

GENERAL SM6000
Page 3 - 6DELTA ELEKTRONIKA B.V. rev. June 2018
30) SERIES OPERATION
Series operation isallowed up to 600V total voltage. The power supplies can
be connected in series without special precautions.
Foreasiercontrol,Master/Slaveoperationisrecommended(seefig. 3-19).
By using the Master / Slave series feature a dual tracking power supply can
be made with one unit as master and one as slave.
For series operation in combination with Power Sink option, all units must
have a Power Sink built inside otherwise no power can be absorbed.
31) PARALLEL OPERATION
Paralleling of the units has no limitations. The power supplies can be con-
nected in parallel without special precautions. For easier control, Master /
Slave operation is recommended (see fig. 3- 19 and fig. 3- 20).
Normal parallel operation of Fast Programming units can give problems,
each combination has to be tested first, in combination with the load !
For parallel operation in combination with Power Sink option, only one unit
can have a Power Sink. Refer to Power Sink manual for details and
restrictions.
32) MASTER / SLAVE OPERATION
The Master / Slave feature makes it possible to use the power supplies as
building blocks to form one large unit (see fig. 3- 20).
Mixed parallel - series operation is also possible, to a maximum of 600 V (or
1200V for SM300-30 / SM600-10).
Theresultingcombinationofunitsbehaveslikeonepower supplyand canbe
manually controlled or programmed on the master. Figure 3- 21 shows a
computer controlled Master / Slave parallel combination.
Connect the different units with standard RJ45 cables (see fig. 3- 22), using
CONBandCONContherearside.WithDIPswitch4ofswitchSW1thePar-
allel or Series mode can be selected.
The slaves will follow the master. The result is true current or voltage shar-
ing in the parallel or series mode respectively.
Note: Master / Slave parallel operation is not recommended for more
than 3 units or in combination with Fast Programming option.
Consult factory for a solution.
fig. 3- 19
Master / Slave series operation
fig. 3- 20
Master / Slave parallel operation
fig. 3- 21
The Master / Slave combination can also
be programmed with the interfaces
PSC-488 or the PSC-232
fig 3- 22
Use standard UTP cables (RJ45) for Master / Slave operation

SM6000 GENERAL
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 3 - 7
33) VOLTAGE AND CURRENT LIMIT
The Voltage Limit will protect your circuit from unwanted high voltages. A high
outputvoltagecouldbecausedbyaccidentalinterruptionofleads,accidentally
turning up the voltage potmeter, a programming error or a defect in the power
supply. The Voltage Limitcircuit uses aseparate voltage divider connected di-
rectly to the output terminals.
The Current Limit protects your circuit from unwanted high currents.
The Voltage and Current Limits maintain the output to a safe preset value.
They do not trip, so no resetting is needed after a fault. It can be very handy to
have hardware limits when the power supply is programmed.
The limits can easily be set by pressing the DISPLAY LIMITS button and ad-
justingthepotentiometers withascrewdriver. TheLED’s nextto thepotmeters
indicate the activity of each limit, also the LIM-status output will be "1".
34) POTENTIOMETERS AND ENCODERS
At the front panel, standard every unit is equipped with knobs for the CV and
CCcontrolsandwithscrewdriveradjustmentfortheVoltageandCurrentLimit.
The SM300-20 and SM600-10 have digital encoders for the CV/CC-controls,
with a very long life time and intelligent functions such as variable coarse/fine
pitch adjustment, locking of CV/CC-settings and a selectable start-up voltage
(start at 0V/0A or at last settings).
The lower voltage units have analog potentiometers for the CV/CC-controls .
Optional they can be equipped with screwdriver adjustment for
CV/CC-settings at the front panel or also with digital encoders (option P220).
See fig. 3- 23 for option P001.
35) COOLING
Twolow noiseblowerscool theunit.The speedof the fansdepend onthe tem-
perature of the internal heatsink. Normally at 50 °C ambient and full load the
fan will not work at full speed.
Aspecialfeatureisthatthefansblowthroughatunnelwherethe heatsinksare
situated, the delicate control circuitry is separated and will not be in the airflow
path (see fig. 3- 24).
Becausetheairentersattheleftandexitsattherightside,itispossibletostack
thepowersupplies,nodistancebetweentheunitsisrequired.Onlytheventila-
tion openings at the left and right side should be free.
For long life the temperature of the air entering on the left side, should be be-
low 35 °C under normal conditions. Under extreme conditions it should be be-
low 50 °C.
Note: The control circuit makes thefan start in a pulsatingmode, during which
period it can produce a high pitched sound. This is normal.
36) DIMENSIONS
fig. 3- 23
Screwdriver adjustment at front panel
fig. 3- 24
The two fans blow through the tunnels,
where the heatsinks are situated

INSTALLATION SM6000
Page 4 - 1DELTA ELEKTRONIKA B.V. rev. June 2018
4INSTALLATION
1) HUMIDITY & CONDENSATION
•Duringnormaloperation,humiditywillnotharmthepowersupply,
provided the air is not aggressive. The heat normally produced in
the power supply will keep it dry.
•Avoid condensation inside the power supply, to prevent
break-down. Condensation can occur during a period the power
supplyhasbeenswitchedoff(oroperatingatnoload)andtheam-
bienttemperatureis increasing.Always allowthe powersupplyto
dry before switching it on again.
2) TEMPERATURE & COOLING
•The storage temperature range is –40 to +85 °C.
•The operating temperature range at full load is –20 to +50 °C.
This temperature range only holds when the air-intakes and
air-outlets are unobstructed and the temperature of the air-intake
is not higher than +50 °C.
•When the power supply is mounted in a cabinet, please note that
the temperature of the air-intake should be kept low and avoid a
short circuit in the airflow i.e. the hot air leaving the air-outlets
entering the air-intakes again.
•Please note: a lower temperature extends the lifetime of the
power supply.
3) 19" RACK MOUNTING
•On both sides in the rack, mount a proper support slide that can
hold the weight of the unit. It is advised to use a separate slide for
each unit.
•After placing the unit on the slide, add all 4 screws to mount the
front panel of the power supply to the vertical rack posts. Use
proper screws intended for keeping equipment of this weight in
position.
•Assuming the rack is deliberately designed for the weight, stack-
ing of the units is allowed without limitations. See previous para-
graph for cooling instructions.
4) OPERATING THE UNIT FOR THE FIRST TIME
•Checkthereisno condensationontheunit.If thereis, allowsome
time to dry.
•Checkthereisa link between +andS+andbetween – andS–on
the SENSE BLOCK (on rear panel).
•CheckthereisalinkbetweentheinputsoftheInterlock(CONA).
•Set the CV and CC potentiometers to minimum (fully anti clock-
wise). For units with Option P220, this is not needed. These units
are set to start at 0 V - 0 A when operated for the first time.
•For the input power, connect a cable of 4-wires of 2.5mm2. Use a
torque of 0.6Nm to fasten the screws on the input connector.
•For the output power, see table 4- 1 for cable diameters and
mounting torque .
•Withhighoutputcurrentmakesuretouselowresistiveconnec-
tions between the power supply and the load:
- Mount the cable lugs directly on the tinned output strips
followed by a washer, a split washer and a nut (see fig. 4- 1).
Always in this order!
- Never place washers between the lugs and the strips
because this can result in excessive heat!
- Only use nuts and washers supplied with the unit.
•Switch on unit.
•Disable the Keylock function, see next paragraph 5) .
•Check the unit is not in Remote CV or Remote CC (LED’s for this
function should be off). Press the REMOTE/LOCAL button until
both LED’s are off.
•Turn on the output by pressing the OUTPUT ON/OFF button.
•Turn both the CV and CC potentiometer a few turns clockwise.
A voltage should now be present on the output.
fig. 4- 1
Low resistive cable connection by mounting the
cables directly on the tinned output strips.
Unit Cables
[mm2] Bolts Torque [Nm]
SM15-400 150 M12 80
SM30-200 70 M10 40
SM45-140 35 M10 40
SM60-100 35 M10 40
SM70-90 25 M10 40
SM120-50 10 M8 20
SM300-20 4 M8 20
SM600-10 2.5 M8 20
table 4- 1
Cable diameters and torque.
Warning:carefullyreadthechapter"SafetyInstructions"
in this manual before operating the unit!

SM6000 INSTALLATION
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 4 - 2
•By pressing the DISPLAY CV/CC SETTING button the meters
will show the setting of the CV and CC potentiometer.
•By pressing the DISPLAY LIMITS button the voltmeter will show
the setting of the CV-limit and the CC-limit potentiometer.
•Check that the cooling of the unit is not obstructed.
5) KEYLOCK
•If the function KEYLOCK is activated, it is no longer possible to
operate the REMOTE/LOCAL button and the OUTPUT ON/OFF
button.Thisfunction canbeusefultoprotecttheoutputfromacci-
dental shutdown. The function KEYLOCK does not influence the
operating of the CV, CC, CV-limit and CC-limit potentiometers.
•Units with digital encoders:
For SM300-20 / SM600-10 and units with Option P220, also the
digital encoders for CV and CC are disabled with the Keylock
function. This means settings of the voltage and current do not
change when the encoders are operated. It is still possible to op-
erate the analog CV-limit and CC-limit potentiometers.
•Activate Keylock:
Pressing the buttons DISPLAY SETTINGS and DISPLAY
LIMITS at the same time for more than 3 seconds, activates the
function KEYLOCK. The moment this function is activated, the
LED’s for REMOTE CV / CC and for OUTPUT ON will blink a few
times.
•Disable Keylock:
Pressingthesamebuttonsagainfor3seconds,disablestheKey-
lock function. The LED’s for REMOTE CV / CC and for OUTPUT
ON will blink again to indicate the new setting.
6) SELECT START-UP MODE
The below is only applicable for SM300-20 / SM600-10 and units
with magnetic encoders - option P220.
•SettingswitchSW1-5attherearpanelinpositionDOWN,theunit
will always start at 0V / 0A after mains switch on.
•Setting switch SW1-5 in position UP, the settings after mains
switch on will be the same as before switching the mains voltage
off.
7) ANALOG PROGRAMMING
•Set DIP switch 1 of SW1 in position UP to select CON E for pro-
gramming.ForSM300-20/SM600-10seeparagraphISO-AMP.
•Disable Keylock.
•Set the unit in REMOTE CV for voltage programming and/or in
REMOTE CC for current programming.
Use the REMOTE/LOCAL button and push this button several
times until the right setting is activated.
Note that pushing the REMOTE/LOCAL button will shutdown the
output to avoid accidental damage to the load.
•Connect the programming voltage source(s) (0 - 5 V) to the ana-
log programming connector CON E on the rear panel (see fig.
4-2 andfig. 4-3). Alwaysusea shieldedcable (max.30 meter)
for programming.
•Turn the output on again with the OUTPUT ON/OFF button.
•If only the voltage is programmed, the maximum current can still
beset withtheCCknob onthefront paneland viceversa.If thisis
not desirable the unit can be ordered with Option P001 or Option
P220 in order to have a fixed setting for the CV and the CC knob
on the front panel, see also par. 34) in previous chapter "Gen-
eral".
•To avoid hum or noise, the programming cable may have to be
twisted in some cases.
•To program the unit by current instead of voltage, simply use a
parallel resistor as a current to voltage converter.
•Pressing the DISPLAY SETTINGS button will show the pro-
grammed values for CV and CC.
•CAUTION: The analog inputs are not isolated from the output.
The Øof the prog. input (pin 1) is internally connected to the S–,
theS– isconnectedtothe negativeoutput.Toprotect the internal
wiring a 650 mA self-resetting fuse is connected in series (F27_1
on P598). To avoid earth loops, use an isolated programming
source. If this is not possible, see nest paragraph 8) for using the
optional ISO AMP CARD.
fig. 4- 2
Programming by voltage:
left voltage -, right current programming.
fig. 4- 3
Programming by current
left voltage -, right current programming.
fig. 4- 4
Remote control.
fig. 4- 5
Local sensing.

INSTALLATION SM6000
Page 4 - 3DELTA ELEKTRONIKA B.V. rev. June 2018
8) ISOLATED ANALOG PROGRAMMING
•For programming via the ISO AMP CARD, set DIP switch 1 on
SW1 in the position DOWN.
•WhentheISOAMPCARDisbuiltinsidetheunit,CONEhasbeen
removed. Use CON H instead. The pinning of CON H is equal to
the pinning of CON E .
•For further operating instructions, see previous paragraph 7).
9) IEEE488 / RS232 PROGRAMMING
•SetDIPswitch1onSW1inpositionDOWNforprogrammingwith
thePSC-488 usingCONHorprogrammingwith thePSC-232 us-
ing CON F and G. With DIP switch 1 in this
position, the signals Vprog (pin 11) and Iprog (pin 3) are
disabled on CON E. All the other signals can still be used.
•Set the unit in REMOTE CV for voltage programming and/or in
REMOTE CC for current programming using the SCPI com-
mands (see manual PSC) or using the REMOTE/LOCAL button
on the unit. Push this button several times until the right setting is
activated. Setting the unit in REMOTE or LOCAL will cause the
outputtoshutdowntoavoidaccidentaldamagetotheload.Turnit
onagainusing the SCPIcommandor withthe OUTPUTON/OFF
button.
•SetDIPswitch1onSW1inpositionUPtoenableCONEagainfor
analog programming.
InthispositionvoltageandcurrentprogrammingonCONFandH
is disabled. The other functions and signals can still be pro-
grammed and read back.
10) MONITORING OUTPUTS
•The 5 V level is compatible with most interfaces.
•The monitoring outputs can drive a meter directly (fig. 4- 4).
11) STATUS OUTPUTS
•The status outputs have a separate Øconnection (pin 8) to avoid
unwantedoffsetsin the programming. Thispinis protected witha
650 mA self resetting fuse (F27_2 on P598).
12) REMOTE SENSING
•RemovethelinksontheSENSEBLOCK(onrearpanel)andcon-
nect sense leads (thin shielded measuring wires) to S+ and S–.
See fig 4- 5 and fig. 4- 6.
•Withremotesensingthevoltageontheloadcanbekeptconstant.
The voltage drop inthe load leads will becompensated. This fea-
ture is not recommended for normal use, because it can easily
give problems.
•Max.2Vperloadleadcanbecompensated.Notethatthevoltage
drop in the leads decreases the max. output voltage rating. In fig.
4- 7 it can be seen that on a 15 V power supply only 11 V will be
available on the load when 2x 2 V compensation is used.
•In order to prevent interference it is advisable to twist the sense
leads. To minimize the inductance in the load leads keep the
leadsclosetoeachother.Theinductanceoftheloadsleadscould
give a problem with pulsating loads. In this case a large electro-
lytic capacitor (Cd) in series with a damping resistor (Rd) both in
parallel with the load will help (see fig. 4- 6). Check that the ca-
pacitor Cd in combination with the load leads and resistor Rd
forms a well damped circuit.
•Since the voltmeter is internally connected to the sensing termi-
nals, it will automatically indicate the voltage on the load. Note
that the voltage measured on the load will be lower than on the
output terminals.
•TheOverVoltageLimitmeasuresthevoltageontheoutputtermi-
nals, so the OVL setting should be increased by the total voltage
drop in the load leads.
13) BATTERY CHARGER
•TheCV /CC regulatedpower suppliesare idealbatterychargers.
Oncetheoutputissetatthecorrectvoltagethebatterywillcharge
constantly without overcharging. This can be useful for emer-
gency power systems.
Suggested circuit breakers for protection power supply
Model Type number Brand Remarks
SM15-400 HTI102 B 100
2pcs. needed GE 4 poles parallel
SM30-200 HTI102 B 100 GE 2 poles parallel
SM45-140 HTI102 B 100 GE 2 poles parallel
extra parallel diode
on output needed
= OPTION 151
SM60-100 HTI101 B 100 GE no remarks
SM70-90 HTI101 B 100 GE no remarks
SM120-50 S281 UC-Z 50 ABB extra parallel diode
on output needed
= OPTION 152
SM300-20 S282 UC-Z 20 ABB 2 poles in series
extra parallel diodes
on output needed
= OPTION 153
SM600-10 FHL 3603013 Schnei-
der
Electric
2 poles in series
extra parallel diodes
on output needed
table 4- 2Circuit breakers for protection.
fig. 4- 6
Remote sensing with shielded wires.
fig. 4- 7
Remote sensing, voltage drop in load leads sub-
tracts from max. output.
fig. 4- 8
Charging battery with a circuit breaker in series.

SM6000 INSTALLATION
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 4 - 4
•Protective measures
Use a CIRCUIT BREAKER in series in order to protect the power
supply from accidental reverse connection (see fig. 4- 8).The
circuit breaker should have a DC voltage rating twice the battery
voltage. Use the very fast type (Z), a type meant for protecting
semiconductors (see table 4- 2).
The unit has a reverse diode in parallel with the output, this diode
and the wiring cannot withstand the thousands of amperes sup-
plied by a wrongly connected battery.
14) REMOTE SHUTDOWN
•The Remote ShutDown can be operated on CON E by a
voltageof+4V...+12VorbyarelaycontactbetweenVrefandRe-
mote ShutDown (pin 9 and 5) (see fig. 4- 9).
•When the unit is programmed with an optional PSC, a
software command can be used for Remote Shutdown.
•In the Remote ShutDown condition, the RSD LED will light.
The DCF LED, DCF status and the DCF relay will be off.
Important: If the link from the Interlock connector (CON A) has
been removed, the RSD LED will be on, but in this condition also
the DCF LED, the DCF status and the DCF relay will be on.
15) MASTER / SLAVE SERIES OPERATION
•Connect output terminals and test system in normal
series operation. Ensure that all (output) power connections are
reliable.
•The voltage drop in the connecting leads between the units
should be kept < 10 mV.
•Switch off all units. Connect units as shown in fig. 4- 10.
ToconnecttheslaveswiththemasterviaCONBandCONC,use
standard UTP cables (RJ45).
On all units put DIP switch 4 of SW1 in position DOWN to set the
units in M/S series mode.
•After turning the units on again, the slaves will be in Remote CV
mode and the Keylock (see previous paragraph 5) is activated.
Thisis becausetheunitautomaticallydetectsthe presenceof the
RJ45 connector in CON C (if this cable is connected to another
unit).
If the RJ45 connector is removed from CON C when the unit is
turnedon,theoutputwillshutdowntoavoid accidentaldamage.
Ifthecableisinsertedwhen theunitisturnedon,the outputshuts
down, the unit changes to Remote CV / CC, the Keylock will be
activated and the output will turn back on.
If DIP switch 4 of SW1 is operated when the unit is turned on, the
output will shutdown to avoid accidental damage.
•The max. number of slaves is only limited by the maximum total
voltage of 600 V (or 1200V for SM300-30 / SM600-10).
16) MASTER / SLAVE PARALLEL OPERATION
•Note: Master / Slave parallel is not recommended for more
than 3 units, consult factory for using more than 3 power
supplies in parallel.
•First connect output terminals and test system in
normal parallel operation. Ensure that all power
connections are reliable.
•Second,switchoffallunits.Toconnecttheslaveswiththemaster
viaCON BandCONC,use standardRJ45connectors according
to fig. 4- 11.
Onall unitsputDIP switch4of SW1inpositionUPto settheunits
in M/S parallel mode. In this mode the DCF LED, DCF relay and
DCF status on the slaves are
disabled because the slaves are always in CC mode.
•After turning the units on again, the slaves will be in
RemoteCCmode andthe Keylock (seepreviousparagraph 5) is
activated.Thisisbecausetheunit automaticallydetectsthepres-
enceoftheRJ45connectorinCONC(ifthiscableisconnectedto
another unit).
If the RJ45 connector is removed from CON C when the unit is
turnedon,theoutputwillshutdowntoavoidaccidentaldamage.
Ifthecableisinsertedwhen theunitisturnedon,the outputshuts
down, the unit changes to Remote CV / CC, the Keylock will be
activated and the output will turn back on.
fig. 4- 9Remote ShutDown with switch.
fig. 4- 10
Master / Slave series connection.
fig. 4- 11
Master / Slave parallel connections.

INSTALLATION SM6000
Page 4 - 5DELTA ELEKTRONIKA B.V. rev. June 2018
If DIP switch 4 of SW1 is operated when the unit is turned on, the
output will shutdown to avoid accidental damage.
•Stack the units to create a minimum distance between the units.
Keep the load close to the master.
Use copper strips (preferred) or short thick cables to connect the
units. Make sure the strips aremounted with a minimum length to
keep the voltage drop between a unit and the bus bar below 10
mV. Also keep the strips close to each other to have a low induc-
tance.
Not following these instructions can cause instability.
•The S- and S+ could be connected to the load if
desired, but this is not recommended because of the complexity
and possible instability.
17) PARALLEL OPERATION OF FAST
PROGRAMMING VERSIONS:
•Master / Slave operation is not recommended.
•Normal parallel operation can give problems, each combination
has to be tested first in combination with the load.
18) MASTER / SLAVE MIXED SERIES /
PARALLEL OPERATION
•For complex combinations as mixed series - parallel, always use
a MASTER / SLAVE SERIES ADAPTER.
•Seefig. 4-12foranexampleofhowtoconnect2unitsinseriesin
parallel with 2 units in series, controlled by 1 master.
•Set the programming mode with the knob Remote / Local on the
front panel. The serial slaves must be in Remote CV- and
CC-mode. The parallel slave must be in Remote CC-mode and
the CV-potmeter must be fully opened.
•Note: A Master / Slave combination can always be
programmed, also with the IEEE488/RS232 controller (PSC-488
/ PSC-232 (both δ-products)). fig. 4- 12
Master / Slave mixed series - parallel connec-
tions.

SM6000 TROUBLE SHOOTING
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 5 - 1
5TROUBLE SHOOTING
1GENERAL
•If you have a question about the unit, please contact our engi-
neers using the address "[e-mail]".
•In case the unit is defect, please first fill out the RMA-form before
sendingtheunit to us. Addingadetailed fault description willhelp
us to repair the unit as soon as possible. Do not try to repair the
unit yourself.
•On our website www.DeltaPowerSupplies.com the RMA-form
can be found under 'Support'.
2NO DC OUTPUT (manual control)
•Check the LED’s ‘Remote CV’ and ‘Remote CC’ on the front
panel, they should be off. Disable Keylock and press the RE-
MOTE/LOCAL switch to turn both LED’s off.
•The LED ‘Output On’ should be on. If this LED is off, disable
Keylock and push the button ‘OUTPUT ON/OFF’.
•Check the connections on the SENSE BLOCK (at rear panel),
there should be a link between + and S+ and between – and S–
(see fig. 5- 3).
•Check if there is a link in the Interlock connector (if not, the RSD
LED will be on).
•Set both the CV- and CC-limit potentiometer (at front panel) at
maximum (fully clockwise).
•TurnboththeCVandCCpotentiometersafewturnsclockwise.
A voltage should be present on the output (for sm300-20 /
sm600-10 and units with Option P220 first remove the Keylock
functionbeforetheCVandCCknobscanbeturned,seepar.5)in
previous chapter "operating manual").
•TurnboththeCVandCCpotentiometersafewturnsclockwise.A
voltage should be present on the output.
3PROGRAMMING DOES NOT WORK OK
•Check the unit is in Remote mode (Remote CV and/or Remote
CC LED should be on).
•The unit works OK in manual control, but in programming
mode the output voltage / current has a large error.
ProbablythefuseinserieswithØ(pin1) ofprogrammingconnec-
tortripped,thefuse(F27_1= 650mA)is aself-resettingtype(see
fig. 5- 1).
•To check the fuse (F27_1) measure the voltage between Øand
the minus output, during the fault condition. The voltage should
only bea few mV, ahigh voltage means that anunwanted current
is flowing through pin 1 of the prog. connector.
Please check why current is flowing through pin 1, see also next
paragraph 4), 4 and fig. 5- 2.
4PROGRAMMING OFFSETS
•Unwanted offsets in the programming can be caused by
earth loops.
Figure5-2showsatypicalearthingproblem.Incasetheloadhas
a connection to earth and the programming source as well, prob-
lems could occur. Improper choice of the earthing point of the
load can give a voltage drop of ∆V1. Connecting the minus or
zero to a separate earth connection can give a voltage drop of
∆V2. Because the internal wires of the programming input are
thin, the voltage drops ∆V1 and ∆V2 will be across the internal
wiring as well. Resulting in an error voltage in series with the pro-
gramming voltage.
•The best solution for this is to use a floating programming
source, a floating load or the optional internal ISO AMP CARD
(δ-product).
5STATUS OUTPUTS FAIL
•CheckfuseF27_2in series withØ(pin 8of CON E), see fig. 5-1.
To check the fuse measurethe voltage between Øandthe minus
output, a high voltage means too much current flowing through
the fuse. F27_2 = 650 mA, self resetting.
fig. 5- 1
Location of programming fuses on P598
P598 is situated directly behind the rear panel
fig. 5- 2
Unwanted programming offsets

TROUBLE SHOOTING SM6000
Page 5 - 2DELTA ELEKTRONIKA B.V. rev. June 2018
6MASTER / SLAVE PARALLEL PROBLEMS
•Check the voltage drop of the wiring between the master and the
slaves is < 10 mV.
•Check the wiring has a low inductance.
7OUTPUT VOLTAGE IS HIGHER THAN SET VALUE
•Check connections on SENSE BLOCK (on rear panel), For nor-
mal operation there should be a link between + and S+ and be-
tween–andS–(seealsofig.5-3).Whenremotesensingisused,
check the wires of the sensing.
8OT LED on
•The temperature of the internal heat sink is too high,
the output has been shutdown to avoid overheating.
•Check if the cooling fans are running.
•Check if the air temperature of the air inlets (left) is below 50 °C
and the airflow is not obstructed.
9OT LED blinks
•The temperature of theinternal heat sink isgetting too high, afur-
ther increase will shutdown the power supply.
•Check if the cooling fans are running properly.
•Check if the air temperature of the air inlets (left) is below 50 °C
and the airflow is not obstructed.
10 ACF LED on
•Phase Loss, check input.
•The input voltage is too low or was intermittent because of a bad
connection. Disconnect the mains, wait a few minutes and try
again.
As soon as the ACF LED Iights, the settings for Remote CV, Re-
moteCCandKeylockwillbesaved.Iftheunitturnsbackon,itwill
have the same settings. For the setting of Output On/Off after
turningtheunitbackon,thepositionofDIPswitch2onSW1isde-
termining.
IftheACF situationlastsafewseconds, theoutputwillshutdown.
The ACF problem has to be solved first, before the output can be
turned on again.
•Internalerror,sendunitforrepair.Seepreviousparagraph1),1.
11 DCF LED on
•The output voltage is below the set voltage. This automatically
happens when the unit is in CC-mode (CC LED is on).
Also with an interrupted Interlock connector, the DCF LED will be
on.
•Internalerror, sendunitforrepair.Seepreviousparagraph1),1.
12 PSOL LED on
•The Power Sink is in overload or the temperature of the Power
Sink is too high. See datasheet of the Power Sink option for fur-
ther details.
13 Blinking LEDs REMOTE CV, REMOTE CC and
OUTPUT ON
•This indicates the Keylock function is activated, see previous
paragraph 5) in "operating manual".
14 NO LEDS on
•Check input.
•Do not try to repair, but send for repair. See previous paragraph
1), 1.
fig. 5- 3
For normal operation links should be connected
between S+ and + and between S– and –

SM6000 MAINTENANCE & CALIBRATION
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 6 - 1
6MAINTENANCE & CALIBRATION
1GENERAL
•The SM-series power supplies do not need any maintenance or
calibration.However, care must be taken that the cooling unit is
not obstructed.
2COOLING FANS
•The built up of dust on the impeller of the fans and the heat sink
fins depends on the environment. Since the fans have over-ca-
pacity dust will not present a problem very quickly.
•The internal construction of the power supply is such that no dust
will reach the sensitive control circuitry, only the heat sinks in a
tunnel will be cooled by forced air (see fig. 6- 1)
•The thermal protection will shutdown the output in case of over-
heating, so no damage will be done to the power supply.
•It is advisable to inspect the fans and the heat sinks regularly.
3GALVANIC INDUSTRY
•For using the power supplies in the galvanic industry it is strongly
recommended to take precautions against an aggressive envi-
ronment.
•Anaggressiveenvironmentwithacid,salt,etc.canharmtheelec-
tronic components. Sometimes even the copper tracks on the
printed circuit boards dissolve.
•To avoid problems, the power supplies should be mounted in a
relatively clean room, or mounted in a cabinet receiving clean air
with over pressure, or a cabinet with a heat exchanger.
4CALIBRATION
•The power supplies are factory calibrated and normally need no
further calibration.
•Only in special situations, for example after repairing a unit, cali-
bration can be necessary.
5METER CALIBRATION
•DIGITAL METERS
The full scale indication can be calibrated with R25_31 and
R25_36 on P596 (see fig. 6- 2).
6SPECIAL CALIBRATIONS
•The following calibrations must be done by qualified personnel
only. Wrong calibration causes malfunction. These calibrations
are only needed after special repairs.
Warning ! Damage caused by wrong
calibration is not warranted.
•CALIBRATING THE CURRENT
MONITOR OFFSET.
WithR26_73on P597the offsetofthe CCmonitorvoltagecan be
calibrated (see fig. 6- 3). The unit has to be unloaded, the output
voltage has to be turned off using the OUTPUT ON/OFF button.
MeasuretheoffsetvoltageoftheCCmonitorontheprogramming
connector. Calibrate the offset on a negative value between –1
mV and zero mV.
Warning! wrong calibration can damage the unit.
•CALIBRATING MAX. CURRENT RANGE or CALIBRATING CC
MONITOR FULL SCALE.
Short the output using a low resistive cable. Measure the output
current with an accurate shunt. The maximum output current can
be calibrated with R26_41. R26_41 is located on P597 (see
fig. 6- 3).
Program CC input with exactly 5.00 V.
Setoutputvoltagetoahighvalue,ensuring thepowersupplyisin
CC mode. Calibrate the current with R26_41 exactly on the rated
maximum current.
Warning! Wrong calibration can damage the unit.
fig. 6- 1
The fans blow through an internal tunnel,
where the heatsinks are situated
fig. 6- 2
Meter calibration with 25-turn potmeters
on P596
fig. 6- 3
Calibrating max. current and offset on P597

SM6000 EC DECLARATION
rev. June 2018 DELTA ELEKTRONIKA B.V. Page 7 - 1
We
Delta Elektronika
Vissersdijk 4
4301 ND ZIERIKZEE
The Netherlands
Declare under sole responsibility that the following Power Supplies:
SM 15-400
SM 30-200
SM 45-140
SM 60-100
SM 70-90
SM 120-50
SM 300-20
SM 600-10
Meet the intent of Directives
2014/30/EC for Electromagnetic Compatibility
2014/35/EC regarding Electrical Safety. (Low Voltage Directive)
2011/65/EC Reduction of Hazardous Substances (RoHS2)
Compliance was demonstrated to the following specification as listed in the official Journal
of the European Communities:
EN 61000-6-3 Generic Emissions: (residential, light industrial)
EN 55022 Radiated and conducted, Class B
EN 61000-3-2 Power Harmonics
EN 61000-3-3 Voltage fluctuation and flicker
EN 61000-6-1 Generic Immunity: (residential, light industrial)
EN 61000-6-2 Generic Immunity: (industrial environment)
EN 61000-4-2 Electrostatic Discharge
EN 61000-4-3 Radiated electromagnetic fields
EN 61000-4-4 Electrical Fast Transients / Bursts
EN 61000-4-5 Surge on DC output
EN 61000-4-5 Surge on line input
EN 61000-4-6 RF common mode, conducted
EN 61000-4-11 Voltage variations and dips
EN 60950 Safety of IT equipment
EN 61010 Safety of electrical equipment for measurement, control and laboratory use
EC Declaration of Conformity - SM6000-series
Managing director
Zierikzee, June 2018
DC POWER SUPPLIES
DELTA ELEKTRONIKA B.V. Vissersdijk 4, 4301 ND
Zierikzee, the Netherlands
www.DeltaPowerSupplies.com
Tel. [phone]