TM5 Power Distribution Description

Power Distribution Overview

Power distribution starts with the controller in the case of non-safety-related controllers, and otherwise starts with the remote/distributed interface modules in both safety-related and non-safety related systems.

The first (leftmost) component in the remote and distributed configurations of the TM5 System distributes power for the 24 Vdc I/O power segment and generates power for the TM5 power bus. There are other components that distribute power to create separate 24 Vdc I/O power segments, and others that distribute power and additionally generate supplemental power to the TM5 power bus.

The Interface Power Distribution Module (IPDM) of the Sercos III Bus Interface is the beginning of the power distribution for the distributed configuration.

Where and when needed, Power Distribution Modules (PDM) could be added to:

• Divide the 24 Vdc I/O power segment into several separated 24 Vdc I/O power segments, or;

• Divide the 24 Vdc I/O power segment into several separated 24 Vdc I/O power segments and provide supplementary power to the TM5 power bus if required by your I/O configuration.

Power Distribution of a Distributed/Remote Configuration

The figure shows the power distribution overview of a distributed/remote configuration:

(1) Sercos III Bus Interface

(2) Distributed expansions

(3) Sercos III bus cable

(4) TM5 power bus of the distributed configuration

(5...8) 24 Vdc I/O power segments

(9) Remote expansion

(10) Expansion bus cable (l <= 100 m / 328.1 ft)

(11) TM5 power bus of the remote configuration

IPDM Interface Power Distribution Module

PDM Power Distribution Module

TM5SBET1 Transmitter module

TM5SBER2 Receiver module

24 Vdc I/O Power Segment Description

Power is distributed to the inputs and outputs of the TM5 System through the 24 Vdc I/O power segment.

The following table gives the first and last devices of the 24 Vdc I/O power segment(s):

A segment is a group of expansion modules that are supplied by the same power distribution module.

The power provided on the 24 Vdc I/O power segment is consumed by the 24 Vdc modules placed in this segment.

The reasons to build a new segment are:

• The first (leftmost) component in the remote and distributed configurations of theTM5 System distributes power for the 24 Vdc I/O power segment and generates power for the TM5 power bus.

• To separate groups of modules. For example, a group of inputs separated from a group of outputs.

• To provide power to the 24 Vdc I/O power segment (in the case that the power of the previous segment has been consumed by other I/O modules).

• To provide supplementary power to the TM5 power bus.

TM5 Power Bus Description

The TM5 bus consists in two parts:

• TM5 data bus

• TM5 power bus

The TM5 power bus distributes the power to supply the electronics of the expansion modules of a remote or distributed configuration. If needed the power on the TM5 bus can be reinforced by adding specific PDMs depending on the reference.

The following table gives the first and last devices of the TM5 power bus:

Interface Power Distribution Module (IPDM)

The Interface Power Distribution Module (IPDM) is the connection of the Sercos III Bus Interface to the external 24 Vdc power supplies.

Among other things, the IPDM connects:

• Directly the external power supply to the 24 Vdc I/O power segment.

• The external power supply to the internal power supply that generates the power distributed on the TM5 power bus, which is derived from the 24 Vdc Main power connection.

The following table describes the parts powered by the 24 Vdc I/O power segment and the TM5 power bus:

Receiver Module (TM5SBER2)

The TM5SBER2 integrates an electronic power supply that generates the power distributed by the TM5 power bus.

It also connects the external 24 Vdc power supply to the 24 Vdc I/O power segment.

The following table describes the parts powered by the 24 Vdc I/O power segment and the TM5 power bus:

Power Distribution Module (PDM)

Depending of the TM5 configuration and the current consumed on either the TM5 power bus or the 24 Vdc I/O power segment(s), you may need to add PDMs to create another 24 Vdc power segment and/or supplement power to the electronic of the expansions via the TM5 power bus.

For more information refer also to TM5 Power Distribution Modules.

The following table describes the parts powered by the 24 Vdc I/O power segment and the TM5 power bus:

Supplying the 24 Vdc I/O Power Segment and the TM5 Power Bus

TM5 Power System, Power Distribution Description, Supplying the 24 Vdc I/O Power Segment and the TM5 Power Bus: