DELTA ELEKTRONIKA BV SM6000
Page 3 - 6 DESCRIPTIONS July 2003, rev. May 2008
30) SERIES OP ER A TION
Series op eration is al lowed up to 600 V total voltage. The power sup plies can
be con nected in se ries without spe cial pre cautions.
For eas ier con trol, Mas ter / Slave op eration is recommended (see fig. 3- 18).
By us ing the Mas ter / Slave se ries fea ture a dual tracking power sup ply can
be made with one unit as mas ter and one as slave.
For se ries op er a tion in com bi na tion with Power Sink op tion, all units must
have a Power Sink built in side oth erwise no power can be ab sorbed.
31)
PAR AL LEL OP ER A TION
Paralleling of the units has no limitations. The power supplies can be con -
nected in par allel with out spe cial pre cautions. For eas ier con trol, Mas ter /
Slave op eration is recommended (see fig. 3- 18 and fig. 3 - 19).
Nor mal par al lel op er a tion of Fast Pro gram ming units can give prob lems,
each com bination has to be tested first, in com bination with the load !
For par al lel op er a tion in com bi na tion with Power Sink op tion, only one unit
can have a Power Sink. Re fer to Power Sink man ual for de tails and
restrictions.
32)
MASTER / SLAVE OP ERATION
The Mas ter / Slave fea ture makes it pos sible to use the power sup plies as
building blocks to form one large unit (see fig. 3 - 19).
Mixed par allel - se ries op eration is also pos sible, to a maximum of 600 V.
The re sulting com bination of units be haves like one power sup ply and can be
manually con trolled or pro grammed on the mas ter. Figure 3 - 20 shows a
com puter con trolled Master / Slave par al lel com bi na tion.
Connect the dif ferent units with standard RJ45 ca bles (see fig. 3 - 21), us ing
CON B and CON C on the rear side. With DIP switch 4 of switch SW1 the Par -
allel or Se ries mode can be se lected.
The slaves will fol low the master. The re sult is true current or voltage shar-
ing in the par allel or se ries mode respectively.
Note: Master / Slave parallel op eration is not recommended for more
than 3 units or in combination with Fast Pro gramming option.
Consult factory for a so lution.
fig. 3 - 18
Mas ter / Slave se ries op er a tion
fig. 3 - 19
Master / Slave parallel operation
fig. 3 - 20
The Master / Slave combination can also
be pro grammed with the interfaces
PSC-488 or the PSC-232
fig 3 - 21
Use standard UTP cables (RJ45) for Master / Slave operation
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