Delta Elektronika ES 150 Series, ES 015-10, ES 030-5, ES 075-2, ES 0300-0.45 Product Manual

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ES 0300-0.45

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ES150 DELTA ELEKTRONIKA BV

Safety Instructions

Caution

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 within. Delta
Elektronika shall not be liable for user’s failure to comply with these requirements.

Installation Category

The Delta Elektronika power supplies have been evaluated to installation category II (Over voltage category II).

Grounding of Mains Input

This product is a safety Class 1 instrument. To minimize shock hazard, the instrument chassis must be
connected to the AC Power Supply mains through a three or four conductor power cable for resp. a single or
three phase unit, with the ground wire firmly connected to an electrical ground (safety ground) at the power
outlet.

For instruments designed to be hard-wired to supply mains, 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.

Grounding of Power Output

If the output of a unit is specified to deliver max 60Vdc, and either the negative or positive power output is
grounded, the voltage on the following connections can be considered safe:

- power outputs and sense connections

- programming/monitor/status-signals, Interlock, Master/Slave-connections, ACF/DCF-relay

- all Delta Elektronika interfaces.

Warn ing:

When the pos i tive power out put can ex ceed 60Vdc in re spect to the neg a tive out put,
ad di tional ex ter nal mea sures must be taken to en sure safety iso la tion

- power out puts and sense con nec tions.

Warn ing:

When the neg a tive power out put of the unit can ex ceed 60Vdc / 42.4Vpk in re spect to ground,
ad di tional ex ter nal mea sures must be taken to en sure safety iso la tion

- power out puts and sense con nec tions

- pro gram ming/mon i tor/sta tus-sig nals, In ter lock, Mas ter/Slave-con nec tions, ACF/DCF-re lay

- in ter faces with op er a tional iso la tion

- non-iso lated in ter faces.

Caution 1: If a low voltage unit has both power outputs floating, or if the output is in series with an external high
AC or DC voltage, the negative power output can exceed the safe value in respect to ground as specified in the
above warning!

of the fol low ing:

of the fol low ing:

Caution 2: Although a high voltage unit is set to a safe voltage below 60V, for safety it must always be
considered as high voltage unit! Wrong operation, a programming error or an external defect can result in an
unsafe high 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.

rev. March 2017 SAFETY INSTRUCTIONS Page 2 - 1

DELTA ELEKTRONIKA BV ES150

Fuses

Fuses must be changed by authorized Delta Elektronika service personnel only, for continued protection against
risk of fire.

Input Ratings

Do not use an AC Supply which exceeds the input voltage and frequency rating of this instrument. The input
voltage and frequency rating of the Delta Elektronika power supply series are stated in de accompanying
datasheet.

Live Circuits

Operating personnel must not remove the instrument cover. 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, discharge circuits and remove external voltage sources
before touching components.

Parts Substitutions & Modifications

Parts sub sti tu tions and mod i fi ca tions are al lowed by au tho rized Delta Elektronika ser vice per son nel only. For
re pairs or mod i fi ca tions the unit must be re turned to a Delta Elektronika ser vice facility.

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.

- Wait for 3 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.

Page 2 - 2 SAFETY INSTRUCTIONS rev. March 2017

ES150 DELTA ELEKTRONIKA BV

!

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 2000m
Pollution degree 2

Cau tion risk of elec tri cal Shock

In struc tion man ual sym bol. The in stru ment will be marked with this sym bol when it is
nec es sary for the user to re fer to the in struc tion man ual

Pro tec tive ground con duc tor ter mi nal

o

I

Off (sup ply)

On (Sup ply)

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

WEEE

(Waste Electrical & Electronic Equipment)
Correct 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.

rev. March 2017 SAFETY INSTRUCTIONS Page 2 - 3

ES150 DELTA ELEKTRONIKA BV

DESCRIPTIONS

1) OUT PUT

The ES015-10, ES030-5, ES075-2 and ES0300-0.45 can ei ther be
used as a con stant volt age source with cur rent lim it ing or as a con ­stant cur rent source with volt age lim it ing.

The change of mode oc curs sharply at the cross ing of the volt age
and cur rent set tings. Fig. 3 - 1 shows the out put ranges.

° OVER LOAD PRO TEC TION

The power sup ply is fully pro tected against all over load con di tions,
in clud ing short cir cuit.

2) IN PUT VOLT AGE

The power sup plies have a wide in put volt age range.

° The units can also be used as a DC/DC con verter.

3) IN PUT CUR RENT

The units have ac tive power fac tor cor rec tion (PFC). The in put cur ­rent will there fore al most be a sine wave. This means that the
rms-value and the har monic dis tor tion of the in put cur rent will be rel ­a tively low.

4) EFFICIENCY

The ef fi ciency is very high and con stant over a wide out put cur rent
range. High ef fi ciency also means low power loss and low heat gen ­er a tion.

ES 015-10

ES 075-2

ES 030-5

ES 0300-0.45

fig. 3 - 1

The out put ranges.

Ev ery point in hatched area can be used

5) CV REG U LA TION

The CV-load reg u la tion should be mea sured di rectly on the out put
ter mi nals (see fig. 3 - 2). A few cm of ca ble can have a volt age drop of
sev eral mV (at high cur rent!).

6) CC REG U LA TION

For ac cu rate CC-load reg u la tion, the op tional ex ter nal volt age sens ­ing is not recommended.

7) RIP PLE & NOISE

The out put rip ple is very low with al most no spikes. The rip ple volt ­age has to be mea sured di rectly on the out put ter mi nals us ing a
probe with very short con nec tions (to avoid pick up of mag netic
fields) (see fig. 3 - 3).

Note:

to get re li able re sults, the back ground noise level should be

lower than the out put rip ple.

8) PRO GRAMMING IN PUTS

The out put volt age and cur rent can be pro grammed by an ex ter nal
an a log volt age. This pro gram ming is very ac cu rate and lin ear. The
lev els are all stand ard ised on 5V.

The in puts have a pro tec tion cir cuit formed by a se ries re sis tor and a
par al lel zener (see fig. 3 - 4). The ca pac i tor lim its the speed to a safe
value. Note that the an a log in puts (and out puts) are not float ing,

but the com mon is con nected to the neg a tive out put ter mi nal.

Wrong con nec tion of Ø can cause earth loops which can trip the
fuse. Af ter re mov ing the fault, the fuse will re set (PTC-fuse). To pre ­vent earth loops, use iso lated pro gram ming with the ISO AMP
MOD ULE (δ-prod uct).

The pro gram ming mode (pro gram and man ual) can be se lected at
the rear panel.

fig. 3 - 2

Mea sur ing CV-reg u la tion

fig. 3 - 3

Mea sur ing rip ple voltage

9) Ethernet / IEEE488 / RS232 PRO GRAMMING

The Delta Elektronika PSC-ETH and PSC-232 con trol lers can be
built in side the unit. The pro gram ming con nec tor on the power sup ­ply is com pat i ble with the ex ter nal in ter face PSC-488 module.

Volt age and cur rent can eas ily be pro grammed and read back. Also
all the sta tus out puts can be read by the com puter.

rev. March 2017 DESCRIPTIONS Page 3 - 1

fig. 3 - 4

Pro gram ming in puts

(in ter nal cir cuit)

DELTA ELEKTRONIKA BV ES150

V

A

Imon
0-5V

Vmon

0-5V

Return of

ref, prog, mon.

10) MON I TORING OUT PUTS

The mon i tor out puts give a volt age 0 - 5 V pro por tional to the out put
cur rent or volt age. The out put cur rent can eas ily be mea sured
with out an ex ter nal shunt us ing the CC mon i tor (see fig. 3 - 6).
The mon i tor out puts are buf fered by op-amp’s and pro tected by
zeners in par al lel (see fig. 3 - 7). The ta ble 3 - 1 shows the
im ped ance of the mon i tor ing out puts. The mon i tor ing and the
ref er ence out puts are sta ble for ca pac i tive loads up to 2 µF, for larger
val ues a 22 Ohm re sis tor should be put in se ries.

Note: in case of a pul sat ing load, the I mon i tor volt age will not
ex actly match the out put cur rent. This is mainly caused by the
cur rent through the out put ca pac i tors. Re mote sens ing will
worsen this ef fect.

Out put pin Ro Io max

Vref 9 15 Ohm 10 mA

Vmon 10 20 Ohm 10 mA

Imon 2 20 Ohm 10 mA
+12V 7 100 Ohm 25 mA

Ø 1 1.2 Ohm

fig. 3 - 5

External potmeters

ta ble 3 - 1 Out puts on pro gram ming con nec tor

11)

+12V ON PRO GRAMMING CON NEC TOR

The +12V on the pro gram ming con nec tor can be used for sup ply ing
ex ter nal cir cuits like the MASTER / SLAVE ADAPTER. The out put is
cur rent lim ited, but should not be over loaded.

12) CC STATUS OUT PUT

The CC sta tus out put has an open out put volt age of 5 V and a short
cir cuit cur rent of 10 mA. T his makes it pos si ble to drive di rectly: an
opto-coupler, a TTL gate or a CMOS gate.

13) RE MOTE SHUT DOWN

A volt age of +5V on the Re mote Shut Down in put on the pr o gram ­ming con nec tor will switch off the power cir cuit of the unit. In standby
mode the power sup ply con sumes very lit tle power.

It is also pos si ble to use a re lay con tact or a switch to shut down the
unit: con nect a switch be tween Vref and Rem. Shutd. (pin 9 and 5).

14) PRO GRAMMING RE SPONSE TIME

The re sponse time is mea sured with a step wave f orm at the CV
prog. in put. The load is re sis tive. Pro gramming from a low to a high
out put volt age is nearly load in de pend ent, but pro gram ming down to
a low volt age takes more time on lighter loads. This is caused by the
out put ca pac i tors, which can only be dis charged by the load be cause
the power sup ply can not sink cur rent.

fig. 3 - 6

Ex ter nal me ters us ing mon i tor out puts

fig. 3 - 7

Buf fered mon i tor out puts (in ter nal cir cuit)

pin de scrip tion pin de scrip tion

Ø, re turn of ref er ence, prog.in puts

1

and mon i tor outputs
cur rent mon i tor out put (0 - 5 V)

2

cur rent pro gram ming in put (0 - 5 V)

3

CC sta tus out put, logic 1 = CC

4

mode (5 V / 10 mA)
Re mote Shut down (+5 V / 1 mA)

5

NC

6

+12 V out put (Ri = 100 Ohm)

7

Ø, re turn of sta tus out puts,

8

+12 V and Re mote Shut down

fig. 3 - 8 Connections an a log pro gram ming con nec tor

Page 3 - 2 DESCRIPTIONS rev. March 2017

Ref er ence Volt age 5.1 V

9

Volt age mon i tor out put (0 - 5 V)

10

Volt age pro gram ming in put (0 - 5 V)

11

NC

12

NC

13

NC

14

NC

15

ES150 DELTA ELEKTRONIKA BV

15) PUL SATING LOAD

To avoid over heat ing the out put ca pac i tors, the AC com po nent
of the load cur rent should be lim ited (see fig. 3 - 9).

One method of de creas ing the AC cur rent through the out put ca ­pac i tor is by us ing a large ex ter nal elec tro lytic ca pac i tor in par al ­lel with the load.

Care must be taken so that the ca pac i tor in com bi na tion with the
lead in duc tance will not form a se ries res o nant cir cuit!

16) IN SU LA TION

For safety the in su la tion of the sep a rat ing com po nents (trans ­form ers) be tween in put and out put is tested at 3750 Vrms dur ing
1 min ute. This is tested be fore as sem bling.

Warn ing! The 3750 Vrms can not be tested af ter wards on the
as sem bled unit be cause the in su la tion be tween the com po nents
on the in put side to the case (like the bridge rec ti fier) is spec i fied
at 2500 Vrms. Since the in su la tion out put - case is low (only 600
VDC) the in su la tion of the pri mary com po nents to case will break
down when 3750 Vrms is ap plied be tween in put and out put
(2500 Vrms + 600 VDC < 3750 Vrms) (see also fig. 3 - 10).

Note: when test ing the in su la tion, take care t o charge and dis ­charge the ca pac i tors be tween in put - case and out put - case
slowly (e.g. in one sec ond). This to pevent high peak cur rents,
which could de stroy the power sup ply. Make sure to have dis ­charged the ca pac i tors com pletely be fore us ing it again.

fig. 3 - 9

Pul sat ing load cur rent

fig. 3 - 10

17) RFI SUP PRES SION

Both the in put and out put have RFI fil ters, re sult ing in very low
con ducted RFI to the line and load. Due to the out put fil ter t he
out put volt age is very clean, hav ing al most no spikes.

The com bi na tion of RFI fil ters and the closed metal case re sults
in a low ra di ated RFI.

In su la tion test volt ages

18) OP ER ATING TEMP

At full power the op er at ing tem per a ture range is –20 to +50 °C.
From 50 to 60 °C the out put cur rent has to be de rated lin early to
75 % at 60 °C (see fig. 3 - 11). These tem per a tures hold for nor ­mal use.

19) THER MAL PRO TEC TION

A ther mal switch shuts down the out put in case of in suf fi cient
cool ing. Af ter cool ing down the unit will start work ing again.

20) HOLD - UP TIME

The hold - up time de pends on the load, out put volt age and line
in put volt age. A lighter load or a lower out put volt age re sults in a
lon ger hold - up time (see fig. 3 - 12). The in flu ence of the line in ­put volt age is lim ited be cause of the ac tive PFC.

21) TURN ON DE LAY

The out put volt age is avail able 0.25 sec af ter mains switch on.

22) IN RUSH CUR RENT

The in rush cur rent is l im ited with a 30 Ohm NTC to about 10 A
when the NTC is cold.

23) COOLING

The cool ing is by nat u ral con vec tion, no noisy blow ers are pres ­ent. The unit should have suf fi cient free space to let the air flow
ver ti cally through the unit. A dis tance of min i mum 5 cm around
the unit is rec om mended.

For long life the tem per a ture of the air en ter ing the unit, should
be be low 35 °C
Un der ex treme con di tions it should be be low 50 °C

un der nor mal con di tions.

fig. 3 - 11

Op er at ing tem per a ture ranges

.

fig. 3 - 12

Hold-up time vs Vout with Iout as a pa ram e ter

rev. March 2017 DESCRIPTIONS Page 3 - 3

DELTA ELEKTRONIKA BV ES150

24) SERIES OP ER A TION

Se ries op er a tion is al lowed up to 600V to tal volt age. The power
sup plies can be con nected in se ries with out spe cial pre cau tions.

25) PAR AL LEL OP ER A TION

Par al leling of the units has no lim i ta tions. The power sup plies can be
con nected in par al lel with out spe cial pre cau tions.

26) MASTER / SLAVE OP ER A TION

For eas ier con trol, Mas ter / Slave op er a tion is rec om mended
(see fig. 3 - 13 and fig. 3 - 14). The re sult ing com bi na tion be haves
like one power sup ply and can be pro grammed on the mas ter.

M/S se ries op er a tion is al lowed up to 600V to tal volt age.
The power sup plies must be con nected with the MASTER / SLAVE
SERIES ADAPTER (δ-prod uct). The mas ter con trols one slave, which
in its turn con trols the sec ond slave and so on. The re sult is true
volt age shar ing.

For M/S par al lel op er a tion con nec tions can eas ily be made on the
an a log pro gram ming con nec tor. The mas ter con trols all slaves.
The re sult is true cur rent shar ing.

Mixed M/S par al lel - se ries op er a tion is also pos si ble
(see fig. 3 - 15).
Fig. 3 - 16 shows a com puter con trolled M/S par al lel com bi na tion.

Note: M/S par al lel op er a tion is not rec om mended for m ore than 4
units, con sult fac tory for a so lu tion.

Mas ter / Slave ser ies operation

fig. 3 - 13

27) PO TEN TI OM E TERS

° Stan dard: - CV and CC po ten ti om eters with knobs at front

panel.

° Op tion P001: - Screw driver ad just ment for CV and CC at the

front panel.

fig. 3 - 14

Mas ter / Slave parallel operation

fig. 3 - 15

Ma ster / Slave mixed se ries-parallel

fig. 3 - 16

The Mas ter / Slave com bi na tion can also be

pro grammed with the in ter faces PSC-ETH,

PSC-488 or the PSC-232

Page 3 - 4 DESCRIPTIONS rev. March 2017

ES150 DELTA ELEKTRONIKA BV

OPERATING MANUAL

1) OP ER ATING THE UNIT FOR THE FIRST TIME

° Check that there is no con den sa tion on the unit. If there is, al low

some time to dry.

° Set the pro gram switches on the rear panel on MAN UAL. Fac tory

de fault.

° Switch on unit.
° Turn both the CV and CC po ten ti om e ter a few turns clock wise. A

volt age should now be pres ent on the out put.

2) AN A LOG PRO GRAMMING

° Put the ap pro pri ate switch(es) in the po si tion PRO GRAM.
° Con nect the pro gram ming volt age source(s) (0 - 5 V) to the AN A -

LOG PROG. CON NEC TOR on the rear panel (see fig. 4 - 1 and
fig. 4 - 2). Al ways use a shielded ca ble for pro gram ming.

° If only the volt age is pro grammed, the max i mum cur rent can still

be set with the CC po ten ti om e ter and vice versa. If this is not de ­sir able the CC or CV can be set with an ex ter nal po ten ti om e ter, in
or der to have a fixed set ting.

° CAU TION: The an a log in puts are not iso lated from the out put.

The Ø of the prog. in put (pin 1) is in ter nally con nected to the neg ­a tive out put. To pro tect the in ter nal wir ing a 650 mA self-re set ting
fuse is con nected in se ries (F7_1) (see fig. 4 - 4).
For iso lated an a log pro gram ming the ISO AMP MOD ULE

(δ-prod uct) is rec om mended to avoid earth loops.

° To avoid hum or noise, the pro gram ming ca ble may have to be

twisted in some cases.

° To pro gram the uni t by cur rent in stead of volt age, sim ply use a

par al lel re sis tor as a cur rent to volt age con verter.

Pro gram ming by volt age

left volt age -, right cur rent pro gram ming

Pro gram ming by cur rent

left volt age -, right cur rent pro gram ming

fig. 4 - 1

fig. 4 - 2

3) Ethernet / IEEE488 / RS232 PRO GRAMMING

° The in ter nal Ethernet in ter face PSC-ETH and the in ter nal RS232

in ter face PSC-232 are fac tory built in.

° For the ex ter nal in ter face PSC-488 module sim ply con nect the

pro gram ming con nec tor of the power sup ply with the mat ing
con nec tor of the in ter face (pin com pat i ble). Al ways use a
shielded ca ble.

° Con nect the in ter face with the com puter.
° On the power sup ply set both pro gram ming switches in the

po si tion pro gram.

° Both CV and CC can be pro grammed and read back.

The CC sta tus can also be read by the com puter.

4) MON I TORING OUT PUTS

° The 5 V level is com pat i ble with most in ter faces.
° The mon i tor ing out puts can drive a me ter di rectly (see fig. 4 - 3).

5) STATUS OUT PUT

° The sta tus out put has a sep a rate Ø con nec tion (pin 8) to avoid

un wanted off sets in the pro gram ming. This pin is pro tected with a
650 mA self-re set ting fuse (F7_2).

6) RE MOTE SHUT DOWN

° The re mote shut down can be op er ated with +5V or a re lay con -

tact (see fig. 4 - 5).

fig. 4 - 3

Re mote con trol

fig. 4 - 5

Re mote Shut Down with switch

fig. 4 - 4

In ter nal cir cuit of pro gram ming in puts and outputs

rev. March 2017 OPERATING MAINTENANCE TROUBLE SHOOTING Page 4 - 1

DELTA ELEKTRONIKA BV ES150

7) MASTER / SLAVE SERIES OP ER A TION

° For se ries op er a tion the MASTER / SLAVE SERIES

ADAPTER (δ-prod uct) must be used. With this adapter

the mas ter can be the up per or lower unit which, in
par tic u lar for high volt ages is an ad van tage. O ther
ad van tages are the fast and easy way of con nect ing.

° First, con nect out put ter mi nals and test sys tem in

nor mal se ries op er a tion. En sure that all (out put) power
con nec tions are re li able.

° Sec ond, switch off all units. Con nect units as shown in

fig. 4 - 6. Use stan dard 15 pole (1:1) shielded ca bles.
Both prog. switches of the slave(s) should be in the
po si tion PRO GRAM.

° The max. num ber of slaves is only lim ited by the max.

to tal volt age of 600 V.

8) MASTER / SLAVE PAR AL LEL OP ER A TION

° Note: Mas ter / Sl ave par al lel i s not rec om mended

for more than 4 units, con sult fac tory for us ing more
than 4 power sup plies in par al lel.

° First con nect out put ter mi nals and test sys tem in

nor mal par al lel op er a tion. En sure that all power
con nec tions are re li able. An in ter rup tion of one of the
(out put) power leads can cause a fuse to blow in the unit,
see para graph “trou ble shoot ing” on page 4-3.

° Sec ond, switch off all units. Plug in prog. con nec tors

with the con nec tions ac cord ing to fig. 4 - 7 (bus bar
to pol ogy). Al ways use a shielded ca ble. The shield ing
must be con nected to the case of the sup ply. Both prog.
switches of the slaves should be in the po si tion
PRO GRAM.

° The pur pose of the link be tween pin 9 and 11 is to set the

volt age limit of the slaves at max i mum.

° Keep the load close to the mas ter. Keep wir ing be tween

Mas ter / Slave se ries con nec tion with

two M/S SERIES ADAPTERS

fig. 4 - 6

mas ter and slaves short. The v olt age drop be tween a
unit and the buss bar should be kept < 10mV.

° Ac ci den tal in ter rup tion of a neg a tive load lead of a unit

dur ing op er a tion will cause fuse F7_1 to blow, see
sec tion ‘trou ble shoot ing’.

fig. 4 - 7

Mas ter / Slave par al lel con nec tions

Page 4 - 2 OPERATING MAINTENANCE TROUBLE SHOOTING rev. March 2017

ES150 DELTA ELEKTRONIKA BV

OPERATING AND STORAGE
CONDITIONS

1) TEM PER A TURE

° The op er at ing tem per a ture range at full load is -20 to

+50 °C.

° Please note: a l ower tem per a ture ex tends the life

of the power sup ply.

° The stor age tem per a ture range is -40 to +85 °C.

2) HU MID ITY

° Dur ing nor mal op er a tion hu mid ity will not harm the

power sup ply, pro vided the air is not ag gres sive.
The heat nor mally pro duced in the power sup ply will
keep it dry.

° Con den sa tion. Avoid con den sa tion in side the power

sup ply, break-down could be the re sult. Con den sa tion
can oc cur dur ing a pe riod the power sup ply is switched
off (or op er at ing at no load) and the am bi ent
tem per a ture is in creas ing .
Al ways al low the power sup ply to dry be fore switch ing
it on again.

3) GAL VANIC IN DUS TRY

° For us ing the power sup plies in the gal vanic in dus try it

is strongly rec om mended to take pre cau tions agains t
an ag gres sive en vi ron ment.

° An ag gres sive en vi ron ment with acid, salt, etc. can

harm the elec tronic com po nents. Some times even the
cop per traces of the pc-boards dis solve.

° To avoid prob lems the power sup plies should be

mounted in a rel a tive cl ean room, or mounted in a
cab i net re ceiv ing clean air with over pres sure.
Or in a cab i net with a heat exchanger.

MAINTENANCE & TROUBLE
SHOOTING

1) GEN ERAL

° The ES-se ries power sup plies nor mally need no

main te nance or cal i bra tion. Only care must be taken
that the cool ing of the unit is not ob structed.

2) NO OUT PUT (nor mal op er a tion)

° Re move load from out put.
° Check po si tion of prog. switches at the rear panel, they

should be on MAN UAL.

° Switch on unit.
° Turn both the CV and CC po ten ti om e ter a few turns

clock-wise. A volt age should be pres ent on the out put.

3) PRO GRAMMING DOES NOT WORK OK

° Check po si tion of prog. switches at rear panel.
° The unit works OK in man ual con trol, but in

pro gram ming mode the out put volt age / cur rent has a
large er ror.
Prob a bly the fuse in se ries with Ø (pin 1) of prog.
connector trip ped, the fuse (F7_1 = 650 mA) is a
self-resetting type.

° To check the fus e (F7_1) mea sure the volt age

be tween Ø and the mi nus out put, dur ing the fault
con di tion. The volt age should only be a few mV, a high
volt age means that an un wanted cur rent is flow ing
through pin 1 of the prog. con nec tor.
Please check why cur rent is flow ing through pin 1 (see
also next para graph 4) and fig. 4 - 8).

4) PRO GRAMMING OFF SETS

° Un wanted off sets in the pro gram ming can be

caused by earth loops.

Fig. 4 - 8 shows a typ i cal earthing prob lem. In case the
load has a con nec tion to earth and the pr o gram ming
source as well, prob lems could oc cur. Im proper
choice of the earthing point of the load can give a
volt age drop of ∆V1. Con necting the mi nus or zero to
a sep a rate earth con nec tion can give a volt age drop of
∆V2. Be cause the in ter nal wires of the pro gram ming
in put are thin, the volt age drops ∆V1 and ∆V2 will be
accross the in ter nal wir ing as well. Re sulting in a er ror
volt age in se ries with the pro gram ming volt age.

° The best so lu tion for this is us ing a float ing pro gram -

ming source with the help of the ISO AMP MOD ULE

(δ-prod uct) or a float ing load.

5) STATUS OUT PUT FAILS

° Check fuse F7_2 in se ries wit h Ø (pin 8 of pro gram -

ming con nec tor). To check the fuse mea sure the

fig. 4 - 8

Un wanted pro gram ming off sets

re sis tance be tween Ø and the mi nus out put, an open
cir cuit means a blown fuse. F7_2 = 650 mA.

6) MASTER / SLAVE PAR AL LEL PROB LEMS

° Ac ci den tal in ter rup tion of a mi nus lead of a unit dur ing

op er a tion will cause fuse F7_1 to blow. To check the
fuse, mea sure the re sis tance be tween Ø (pin 1 of
prog. conn.) and the mi nus out put, the fuse is a self
re set ting ty pe. F7_1 = 650 mA

° Check link be tween pin 9 and 11 on the pro gram ming

con nec tor of the slaves.

7) NO LEDS on.

° Over heating can be the cause, cool ing down will re set

the ther mal pro tec tion.

° Check in put power.
° Check fuses in side unit.

rev. March 2017 OPERATING MAINTENANCE TROUBLE SHOOTING Page 4 - 3

DELTA ELEKTRONIKA BV ES150

REMOTE SENSING for the ES 150 - series

ES 015-10 OP TION P119
ES 030-5 OP TION P120
ES 075-2 OP TION P121
ES 0300-0.45 OP TION P122

DESCRIPTIONS

1) RE MOTE SENSING

The volt age at the load can be kept con stant by re mote sens ­ing. This fea ture is not rec om mended for nor mal use but only
when the load volt age is not al lowed to vary more than a few
mil li volts. Al ways use a shielded ca ble for sens ing.

In or der to com pen sate for the volt age drop acros s the load
leads, the unit will have to sup ply a higher volt age: Uout =
(volt age drop across each lead) + (volt age across the load)
(see fig. 5 - 1).

The volt age dis play is con nected to the sense leads and
there fore reads the volt age across the load and not the volt ­age on the out put ter mi nals.

The sense leads are pro tected for ac ci den tal in ter rup tion, in
which case the out put volt age will go to a max. of 115% of the
set value.

With the RE MOTE SENSING op tions, the power

con nec tors are moved to the rear panel

2) PUL SATING LOAD

When us ing re mote sens ing on a pul sat ing load (for in stance
a DC-mo tor), use a ca pac i tor be tween S+ and + and be tween
S– and – and a se ries re sis tor in the sense leads (see fig. 5 -

2). Like this the AC-com po nent caused by the volt age drop
across the load leads, is fil tered.

OPERATING

1) RE MOTE SENSING

Re move the links on the TER MI NAL BLOCK (on rear panel)
and con nect sense leads (thin shielded mea sur ing wires) t o
S+ and S– (see fig. 5 - 4).

With re mote sens ing the volt age on the load can be kept con ­stant. The volt age drop across the load leads will be com pen ­sated. This fea ture is not rec om mended for nor mal use,
be cause it can eas ily give prob lems.

Max. 2 V per load lead can be com pen sated. Note that the
volt age drop in the leads de creases the max. out put volt age
rat ing. In fig. 5 - 1 it can be seen that on a 15 V power sup ply
only 11 V will be avail able on the load when 2x 2 V com pen sa ­tion is used.

In or der to pre vent in ter fer ence it is ad vis able to use shielded
ca ble for the sense leads. The in duc tance of the loads leads
could give a prob lem with pul sat ing loads. In this case a large
elec tro lytic ca pac i tor in par al lel with the load will help. Check
that the ca pac i tor in com bi na tion with the load leads does not
form a res o nant cir cuit re sult ing in a large AC cur rent flow ing
in the leads.

Since the volt age dis play is in ter nally con nected to the sens ­ing ter mi nals, it will au to mat i cally in di cate the volt age on the
load. Note that the volt age mea sured on the load will be lower
than on the out put ter mi nals.

fig. 5 - 1

With re mote sens ing the volt age drop in the

load subtracts from the max i mum out put

fig. 5 - 2

Re mote sens ing on a pul sat ing load

2) MASTER / SLAVE PAR AL LEL OP ER A TION

WITH SENSE OPTIONS

Dis con nect the links be tween the S– and – of the slaves only.
If not re moved the cur rent sharing will not be pro por tional.

The S– and S+ could be con nected to the load if de sired, but
this is not rec om mended be cause of the com plex ity.

On the ter mi nal block, the +, S+, – and S– wires

must be con nected. When us ing the power sup ply

with out sens ing, the links be tween + and S+ and –

and S– must be in serted.

Page 5 - 1 OPERATING MAINTENANCE TROUBLE SHOOTING rev. March 2017

fig. 5 - 3

ES150 DELTA ELEKTRONIKA BV

TROUBLE SHOOTING

1) NO OUT PUT (nor mal op er a tion)

Check the con nec tions on the TERMINAL BLOCK
(at rear panel), there should be a link be tween + and S+
and be tween – and S– (see fig. 5 - 5).

2) MAS TER / SLAVE PAR AL LEL PROBLEMS

Cur rent shar ing is not ok. Prob a bly the links be tween
S– and – of the slaves are not re moved.

3) OUT PUT VOLT AGE IS HIGHER THAN SET

VALUE

Check con nec tions on TER MI NAL BLOCK (on rear
panel), For nor mal op er a tion there should be a link
be tween + and S+ and be tween – and S– (see also
fig. 5 - 5). When re mote sens ing is used, check the wires
of the sens ing.

The shield ing of the sense wires must be con nected

to the case of the power sup ply

fig. 5 - 4

When not us ing re mote sens ing , make sure the links

be tween + and S+ and – and S– are in serted

BUILT IN PSC-232 for the ES 150 - series

OP TION P148

For this op tion the RS232 Controller PSC-232 has been built in side the unit.
With the PSC-232 the volt age and cur rent can eas ily be pro grammed and read back.
Also all the sta tus out puts can be read by the com puter.

See PSC-232 man ual for fur ther de tails.

BUILT IN PSC-ETH for the ES 150 - series

OP TION P150

For this op tion the Ethernet Con trol ler PSC-ETH has been built in side the unit.
With the PSC-ETH the volt age and cur rent can eas ily be pro grammed and read back.
Also all the sta tus out puts can be read by the com puter.

See PSC-ETH man ual for fur ther de tails.

LOW OVL SETTING for the ES 75-2

fig. 5 - 5

OP TION P173

For this op tion the Over Volt age Limit (OVL) has been set be low 60 V.

rev. March 2017 OPTIONS ES150 - SERIES Page 5 - 2

ES150 DELTA ELEKTRONIKA BV

Vissersdijk 4
4301 ND Zierikzee
The Netherlands

Tel. [phone]
Fax. [phone]
www.deltapowersupplies.com

DELTA ELEKTRONIKA B.V.

EC Dec la ra tion of Con for mity

We

Delta Elektronika
Vissersdijk 4
4301 ND Zierikzee
The Neth er lands

De clare un der sole re spon si bil ity that the fol low ing Power Sup ply:

ES 015-10
ES 030-5
ES 075-2
ES 0300-0.45

Meets the in tent of Di rec tives 2014/30/EC for Elec tro mag netic Com pat i bil ity and
Di rec tives 2014/35/EC re gard ing Elec tri cal Safety. (Low Volt age Di rec tive)
Com pli ance was dem on strated to the fol low ing spec i fi ca tion as listed in the of fi cial Jour nal
of the Eu ro pean Com mu ni ties:

EN 61000-6-3 Ge neric Emis sions: (res i den tial, light in dus trial)

EN 55022 Ra di ated and con ducted, Class B
EN 61000-3-2 Power Harmonics
EN 61000-3-3 Volt age fluc tu a tion and flicker

EN 61000-6-1 Ge neric Im mu nity: (res i den tial, light in dus trial)
EN 61000-6-2 Ge neric Im mu nity: (in dus trial en vi ron ment)

EN 61000-4-2 Elec tro static Dis charge
EN 61000-4-3 Ra di ated elec tro mag netic fields
EN 61000-4-4 Elec tri cal Fast Tran sients / Bursts
EN 61000-4-5 Surge im mu nity
EN 61000-4-6 RF com mon mode, con ducted
EN 61000-4-11 Volt age vari a tions and dips

EN 60950 Safety of IT equip ment
EN 61010 Safety of elec tri cal equip ment for mea sure ment, con trol and lab o ra tory use

Man ag ing di rec tor,
Zierikzee, March 2017

rev. March 2017 EC DECLARATION Page 6 - 1

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