Delta 16 SM600 Datasheet download pdf (Page 19)

SM6000 DELTA ELEKTRONIKA BV

July 2003, rev. March 2012 OPERATING MAINTENANCE TROUBLE SHOOTING CALIBRATING Page 4 - 6

TROUBLE SHOOTING

1) GEN ERAL

• In case you need as sis tance for re pair ing a unit, please con tact

our en gi neers us ing the ad dress "Support@Delta-Elektronika.nl".

• In case you want us to re pair the unit, please first fill out the

RMA-form be fore send ing the unit to us. Add ing a de tailed fault

de scrip tion will help us to re pair the unit as soon as pos si ble.

On our website www.DeltaPowerSupplies.com the RMA-form

can be found un der 'Sup port'.

2) NO OUT PUT (man ual con trol)

• Check the LED’s ‘Re mote CV’ and ‘Re mote CC’ on the front

panel, they should be off. Dis able Key lock and press the RE -

MOTE/LO CAL switch to turn both LED’s off.

• The LED ‘Out put On’ should be on. If this LED is off, dis able Key -

lock and push the but ton ‘OUT PUT ON/OFF’.

• Check the con nec tions on the SENSE BLOCK (at rear panel),

there should be a link be tween + and S+ and be tween – and S–

(see fig. 4 - 16).

• Check if there is a link in the In ter lock con nec tor (if not, the RSD

LED will be on).

• Set both the CV- and CC-limit po ten ti om e ter (at front panel) at

max i mum (fully clockwise).

• Turn both the CV and CC po ten ti om eters a few turns clock wise.

A volt age should be pres ent on the out put (for sm300-20 /

sm600-10 and units with Op tion P220 first re move the Keylock

func tion be fore the CV and CC knobs can be turned, see par. 2) in

pre vi ous chap ter "op er at ing man ual").

• Turn both the CV and CC po ten ti om eters a few turns clockwise. A

volt age should be pres ent on the out put.

3) PRO GRAMMING DOES NOT WORK OK

• Check the unit is in Re mote mode (Re mote CV and/or Re mote CC

LED should be on).

• 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 pro gram ming

connector trip ped, the fuse (F27_1 = 650 mA) is a self-resetting

type (see fig. 4 - 14).

• To check the fuse (F27_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 - 15.

4) PRO GRAMMING OFF SETS

• Un wanted off sets in the pro gram ming can be caused by

earth loops.

Fig ure 4 - 15 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. 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 across the in ter nal wir ing as

well. Re sulting in an er ror volt age in se ries with the pro gram ming

volt age.

• The best so lu tion for this is to use a float ing pro gram ming source,

a float ing load or the op tional in ter nal ISO AMP CARD (δ-prod uct).

5) STATUS OUTPUTS FAIL

• Check fuse F27_2 in se ries with Ø (pin 8 of CON E), see fig. 4 - 14.

To check the fuse mea sure the volt age be tween Ø and the mi nus

out put, a high volt age means too much cur rent flow ing through the

fuse. F27_2 = 650 mA, self resetting.

fig. 4 - 14

Lo ca tion of pro gram ming fuses on P598

P598 is sit u ated di rectly be hind the rear panel

fig. 4 - 15

Un wanted pro gram ming off sets

1 2 ... 14 15 16 17 18 19 20 21 22 23

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Delta 16 SM600 Datasheet Page 19

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