Datasheet

SM6000 DELTA ELEKTRONIKA BV
July 2003, rev. March 2012 DESCRIPTIONS Page 3 - 5
22) 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 the
out put volt age is very clean, hav ing al most no spikes.
23) 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 - 15). These tem per a tures hold for nor -
mal use, i.e. the ven ti la tion open ings on the left and right side
must be free.
24) THER MAL PRO TEC TION
A ther mal switch shuts down the out put in case of in suf fi cient
cool ing.The OT sta tus will be high. Af ter cool ing down the unit
will start work ing again.
The OT-LED on the front panel will be on and the OT-status sig -
nal will be "1" in case of a trip ped ther mal pro tec tion.
As a pre-warning the OT-LED blinks (sta tus will still be low), this
will start be fore the power sup ply shuts down.
25) HOLD - UP TIME
The hold - up time de pends on the load and the out 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 - 16).
26) TURN ON DE LAY
The out put volt age is avail able about 0.2 sec af ter mains switch
on.
27) IN RUSH CUR RENT
The in rush cur rent is elec tron i cally lim ited.
Re peat edly switch ing on and off does not change the max i mum
peak cur rent.
Switching on and off at a fast rate can over heat the in rush cur -
rent lim iter. With the re sult that the unit does not start any more.
Af ter cool ing down (mains switched off) it will be OK again.
28) PHASE LOSS
Phase loss means that not all three phases are avail able.
The ACF-status will be high, the ACF LED will light and the
out put of the unit will shut down af ter a few seconds.
29) 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 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 across the load
leads, the unit will have to sup ply a higher volt age (see fig. 3 -
17):
Uout = (volt age drop across each lead) + (volt age across the load).
The volt age limit reads the volt age di rectly at the out put ter mi -
nals. The set ting for the limit must there fore be in creased by the
to tal volt age drop across the load leads.
The volt age dis play on the front panel and the volt age mon i tor
out put on CON E are con nected to the sense leads and there -
fore read the volt age across the load and not the volt age on the
out put ter mi nals.
The sense leads are pro tected against ac ci den tal in ter rup -
tion. The max i mum volt age be tween the out put ter mi nals and
the sense in puts is lim ited at 2.5 V.
For sens ing on a pul sat ing load see para graph 20) of this
chap ter.
fig. 3 - 15
Op er ating tem per a ture ranges
fig. 3 - 16
Hold-up time vs V
out
with I
out
as a pa ram e ter
fig. 3 - 17
Re mote sens ing, volt age drop in load leads sub -
tracts from max. out put