Operating And Storage Conditions - Delta Elektronika ES 150 Series Product Manual

ES150
OPERATING AND STORAGE
CONDITIONS
TEM PER A TURE
1)
The op er at ing tem per a ture range at full load is -20 to
°
+50 °C.
Please note: a lower 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.
°
HU MID ITY
2)
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.
GAL VANIC IN DUS TRY
3)
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 against
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 clean 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
GEN ERAL
1)
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.
NO OUT PUT (nor mal op er a tion)
2)
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.
PRO GRAMMING DOES NOT WORK OK
3)
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 fuse (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).
rev. March 2017 OPERATING MAINTENANCE TROUBLE SHOOTING
PRO GRAMMING OFF SETS
4)
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 pro gram ming
source as well, prob lems could oc cur.
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
or a float ing load.
(δ-prod uct)
STATUS OUT PUT FAILS
5)
Check fuse F7_2 in se ries with 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.
MASTER / SLAVE PAR AL LEL PROB LEMS
6)
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 type. F7_1 = 650 mA
Check link be tween pin 9 and 11 on the pro gram ming
°
con nec tor of the slaves.
NO LEDS on.
7)
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.
°
DELTA ELEKTRONIKA BV
Im proper
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