BCD.00617 Rev AB,16-Nov-2015

Page 3 of 15

MELCHER

The Power Partners.

Accessories Data Sheet

Backplanes BPD, BPF for T Series

Input filter

Input filter

Input filter

1

2

3

Fuse F1(auxiliary circuit)

Bus bar system

Output capacitor (10 mF, each)

Preload (<10 W)

Signal terminal strip X5

Jumper strip X3

Mains input connector X1

Connector H15 for T unit

+

–

Output fuse

Y

Y

L1

L2

L3

N

X4

B30

Y

B20

B10

R33

R34

F31

R23

R24

R25

F21

R13

R14

F11

D31

D21

D11

Decoupling

diode

Fig. 1

Back plane, view from the rear

F

F

F

+

+

+

+

+

+

+

+

+

X1

L1

L2

L3

N

Vo+

Vo–

D set

Sys In

D

i

Sys out

D2

D1

D3

F11

F31

CC C

CC C

CC C

D31

D21

D11

RPT

RPT

RPT

+

+

–

–

Vo+

Vo–

P

N

Y

Y

Y

Vo+ (BUS)

Vo+ (BUS)

Vo+ (BUS)

Sys In 2

Sys In 3

Sys In 1

F21

Vo+

Vo–

D set

Sys In

D

i

Sys out

P

N

Vo+

Vo–

D set

Sys In

D

i

Sys out

P

N

R13

R23

R33

R14

R24

R34

DC-Bus

B10

B20

B30

T unit 1

T unit 2

T unit 3

R25

Fig. 2

Block diagram of back plane

F11, 21, 31 fitted to BPF types. D11, 21, 31 fitted to BPD types.