BCD.00617 Rev AB,16-Nov-2015

Page 11 of 15

MELCHER

The Power Partners.

Accessories Data Sheet

Backplanes BPD, BPF for T Series

Table 5: Pin allocation of the signal terminal strip X5

Pin no.

Electrical determination

Pin designation

1

Supply negative (return potential)

Vo–

2

Sys good input of T unit no. 3

Sys In 3

3

Sys good input of T unit no. 2

Sys In 2

4

Sys good input of T unit no. 1

Sys In 1

5

Sys good output of T unit no. 3

Sys Out 3

6

Sys good output of T unit no. 2

Sys Out 2

7

Sys good output of T unit no. 1

Sys Out 1

8

Inhibit or Ucr of T unit no. 3

i3/Ucr

9

Inhibit or Ucr of T unit no. 2

i2/Ucr

10

Inhibit or Ucr of T unit no. 1

i3/Ucr

11

Power down of T unit no. 3

D3

12

Power down of T unit no. 2

D2

13

Power down of T unit no. 1

D1

14

Supply positive

Vo+

The signal terminal strip X5 is provided with a matching fe-

male connector at delivery.

The jumper strip X3 is provided with 12 jumpers at delivery.

The pin allocation of the jumper strip is described in fig. 7,

(Jumper strip X3), signal meshing.

Safety and Installation Instructions

Transportation

For transportation use standard packaging material of the

Company.

Racks fitted with back planes are not designed for transporta-

tion with the T Series AC-DC converters fitted into the racks.

Connector Pin Allocation

The power output is provided via the two bus bars, the positive

one designated Vo+, the negative one Vo–. The following pin

allocation tables define the electrical potentials and the

physical pin positions on the connectors of the back planes.

Table 4: Pin allocation of the mains input connector X1

Pin no.

Electrical

determination

Pin designation

1

Input phase 1

L1

2

Input phase 2

L2

3

Input phase 3

L3

4

Input neutral

N

5

Protective earth

6

Protective earth

Input connector X1 is provided with a matching male connec-

tor at delivery. Standard configuration: Pins 1, 2 and 3 are

interconnected (for single phase operation).

Installation Instruction

The BPD/BPF Series back planes are components, intended

exclusively for inclusion within other equipment by an

industrial assembly operation or by professional installers.

Installation must strictly follow the national safety regulations

in compliance with the enclosure, mounting, creepage,

clearance, casualty, markings and segregation requirements

of the end-use application.

Caution: It is the responsibility of the the installer to define and

apply a safety concept for the whole system which is

provided with this back plane. The following are under the

aspects which have to be considered:

• Consult the T Series data sheet on our website before con-

necting the system to the mains.

• The necessity to provide a cover over the live parts at the

mains input (hazardous voltage) or over the DC-bus bars

(energy hazard), preventing accidental contact during in-

stallation, start-up of a system or maintenance, depends on

the final installation as well as on the applicable safety re-

quirements.

• Service should be carried out by qualified personnel only.

• Fuses should be replaced with the same types only.

• The earth terminal on the back plane must be connected to

safety ground.

• Back planes in 3-phase (

∆) configuration are available on

request. Modifications to the back plane in the field from Y to

∆-configuration (and vice versa) are not recommended.

• The maximum nominal input voltage is 230 VAC +10%.

Higher input voltages may damage the T Series converters

as well as the back plane.

• Empty spaces in a rack should be covered by a dummy front

panel.

Caution: Prior to handling, the back plane must be discon-

nected from mains and from other sources (e.g. batteries).

Check for hazardous voltages and hazardous energy before

and after altering any connections. Hazardous energy levels

may be present at the output terminals even after the mains

input voltage has been disconnected from the unit. This is

indicated by the red error LEDs of the T series AC-DC

converters. It is the responsibility of the installer to prevent an

unwanted short-circuit across the output of the back plane, of

the battery and of each T series AC-DC converter. In case of a

short circuit across the output of a T unit, all LEDs will be off,

although the mains may be present.

The back planes are intended for stationary applications. They

shall be installed in 19’’ racks according to DIN 41494.

Install the back planes vertically, the mains input connector X1

being on the right-hand side of the back plane (view from the

back), and make sure that there is sufficient air flow available

for convection cooling of the T Series converters.