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Delta Elektronika SM 700 Series User Manual

Delta Elektronika SM 700 Series
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SM1540-D SM7020-D SM3004-D DELTA ELEKTRONIKA BV
1989 rev. May 2008 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING Page 4 - 1
OPERATING MANUAL
1) OPERATING THE UNIT FOR THE FIRST TIME
Set the in put volt age se lec tor switch found on the rear panel to
the re quired in put voltage (110/230 V). A wrong setting can se ri-
ously dam age the unit. Do not switch the se lector switch when
the unit is in use.
Check in put fuses. For 110 V op eration fuses have to be re-
placed. See text at rear panel.
Check that there is no condensation on the unit. If there is, al low
some time to dry.
Set the prog. switches on the rear panel on MAN UAL.
Check that there is a link be tween + and S+ and be tween – and
S– on the SENSE BLOCK (on rear panel).
SM3004-D has no re mote sensing!
Set OVP po tentiometer (on front panel) to max imum (fully clock-
wise), Use a screwdriver to set the OVP volt age.
With high out put current (SM1540-D!) make sure to use low re -
sistive con nections be tween the power sup ply and the load:
- Mount the ca ble lugs be tween the two nuts and washers .
- Only use nuts and wash ers sup plied with the unit (tinned brass).
- Never use ex tra wash ers, spring wash ers , serrated locks etc.
Switch on unit.
Turn both the CV and CC po tentiometer a few turns clockwise. A
voltage should now be pres ent on the output.
By pressing the DISPLAY CV/CC SETTING button the meters
will show the setting of the CV and CC po tentiometer.
By press ing the DIS PLAY OVP SETTING button the volt me ter
will show the setting of the OVP po ten ti om e ter.
When the power sup ply is used on a fixed out put voltage it is
highly rec ommended to set the Over Volt age Pro tector. As set
out in the following ta ble:
SM1540-D SM7020-D
range 0 - 35V
SM7020-D
range 35 - 70V
SM3004-D
range 0 - 150V
SM3004-D
range 150 - 300V
Vout + 2V Vout + 3V Vout + 5V Vout + 10V Vout + 25V
Ex am ple: For a SM7020-D set at 24 V out put voltage it is recom-
mended to set the OVP on 24 + 3 = 27 V.
Check that the cool ing of the unit is not ob structed.
2)
AN A LOG PRO GRAMMING
Put the ap propriate switch(es) in the po sition PROGRAM.
Connect the pro gramming voltage source(s) (0 - 5 V) to the AN A-
LOG PROG. CON NECTOR on the rear panel (see fig. 4 - 1 and
fig. 4 - 2). Al ways use a shielded ca ble for pro gramming.
If only the voltage is pro grammed, the max imum current can still
be set with the CC po tentiometer and vice versa. If this is not de -
sirable the CC or CV can be set with an ex ternal po tentiometer, in
order to have a fixed set ting.
CAU TION: The an alog in puts are not iso lated from the output.
The Ø of the prog. in put (pin 1) is in ternally con nected to the S–,
the S– is connected to the neg ative output. To pro tect the in ternal
wiring a 650 mA self-resetting fuse is con nected in se ries (F600
on P385, P386 or P387), see fig. 4 - 4.
For iso lated an a log pro gram ming the ISO AMP MOD ULE
(δ-prod uct) is rec ommended to avoid earth loops.
To avoid hum or noise, the pro gramming ca ble may have to be
twisted in some cases.
To pro gram the unit by current in stead of volt age, sim ply use a
parallel re sistor as a current to volt age con verter.
3)
IEEE488 / RS232 PRO GRAMMING
With the ex ternal IEEE488 /RS232 in ter face PSC-488 mod ule /
PSC-232 mod ule (both
δ-prod ucts) sim ply con nect the prog.
connector of the power sup ply with the mat ing con nector of the
PSC-488 / PSC-232 (pin com patible). Always use a shielded ca -
ble.
Set both prog. switches to the po sition pro gram.
Both CV and CC can be pro grammed and read back. The CC and
OVP sta tus can also be read by the computer.
fig. 4 - 1
Pro gram ming by volt age
left voltage -, right current pro gramming
fig. 4 - 2
Pro gram ming by cur rent
left voltage -, right current pro gramming
fig. 4 - 3
Re mote con trol
fig. 4 - 4
In ter nal cir cuit of pro gram ming in puts and out puts

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Delta Elektronika SM 700 Series Specifications

General IconGeneral
BrandDelta Elektronika
ModelSM 700 Series
CategoryPower Supply
LanguageEnglish

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