Delta 16 SM600 Datasheet Page 7

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SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. March 2012 DESCRIPTIONS Page 3 - 1
fig. 3 - 1
Out put ranges. Ev ery 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
DESCRIPTIONS
1) OUT PUT
The SM15-400, SM30-200, SM45-140, SM60-100, SM70-90, SM120-50,
SM300-20 and SM600-10 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. Figure 3 - 1 shows the out put ranges.
DIS PLAY CV/CC SETTINGS FUNCTION
The set tings of the volt age and cur rent con trol (also when pro grammed) can
be ob served on the front panel me ters by press ing the Dis play CV/CC Set -
tings but ton. This al lows the cur rent limit to be set when op er at ing in the CV
mode with out short ing the out put ter mi nals, and the volt age limit to be set
when op er at ing in the CC mode with out open ing the load leads.
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 unit needs a 3 phase in put volt age, but no neu tral con nec tion is re -
quired.
The unit only op er ates on three phases. In case of Phase Loss, the
ACF-status (AC Fail) will be high, the ACF-LED will light and the out put
shuts down af ter a few sec onds.
3) IN PUT CUR RENT
The unit has 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.
The peak in rush cur rent is elec tron i cally lim ited. Switching on and off re peat -
edly will not re sult in ex ces sive cur rents like with NTC cir cuits.
4) STANDBY IN PUT POWER
The unit con sumes very lit tle power when in standby. This makes it pos si ble
to leave the in put power on when the out put is dis abled us ing the Out put
On/Off push but ton on front panel or the Re mote Shut Down in put (pin 5 on
con nec tor CON E on the rear panel).
5) EFFICIENCY
The ef fi ciency is very high and con stant over a wide out put cur rent range.
High ef fi ciency means low power loss and low heat gen er a tion.
6) CV REG U LA TION
The spec i fied CV-load reg u la tion value is mea sured di rectly on the out put
ter mi nals. This is be cause at high cur rent, a few cm of ca ble can have a volt -
age drop of sev eral mV.
7) CC REG U LA TION
For ac cu rate CC-load reg u la tion, do not use ex ter nal volt age sens ing.
A volt age be tween S- and mi nus out put will cre ate an er ror of about 0.04 %
per volt.
A volt age be tween S+ and + is not crit i cal.The CC-stability is also af fected by
ex ter nal volt age sens ing.
Note: when the unit op er ates in CC-mode, the DCF-LED will be on. When
the unit is in CC-mode most of the time, it is pos si ble to dis able the LED with
DIP switch 3 on SW1 (rear panel).
8) RIP PLE & NOISE
The out put rip ple is very low with al most no spikes. The spec i fied rip ple volt -
age is mea sured di rectly on the out put ter mi nals us ing a probe with very short
con nec tions. This to avoid pick up of mag netic fields, see fig. 3 - 2 and fig. 3 -
3.
At low tem per a tures like -20°C the rip ple in creases. By us ing high qual ity
elec tro lytic ca pac i tors the in crease is rel a tively low.
fig. 3 - 2
Mea sur ing rip ple volt age
WRONG !
fig. 3 - 3
Mea sur ing rip ple volt age
RIGHT !
SM 600-10
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