B&R ECNT43-0   MULTI power supply module 

B&R ECNT43-0   MULTI power supply module

Material number:

ECNT43-0

Description:

MULTI power supply module 24 VDC, 100 W With extended diagnostics functions Can be used in MULTI/MIDI module racks

There are two basic types of cables used for B&R2000 control systems:

• Shielded cables: interface cables, cables for analog signals

• Cable for digital signals

These two cable types should be separated running through different channels. If cables of

different groups are run in the same channel over a long distance, a metallic, grounded partition

should keep them apart.

An external protective circuit is necessary for relay output modules. The internal protection is

used for increasing the lifespan of the relay and improve the EMC properties as well.

The external protection circuit can be installed either on the switching load, or between the

terminal block and load. Most manufacturers of solenoid operated valves and contactors offer

suitable protective circuit devices for the respective elements.

Possible protective elements are:

• RC element: can be used for D.C or A.C.

• Varistor: usually used for A.C.

• Inverse diode: can only be used for D.C.

• Diode/Z-diode combination: can only be used for D.C. This type of protective circuit

allows faster switch-off times.

6. Installation Guidelines

• The B&R2005 controller should only be mounted horizontally. There must be must at

least 10 cm free space above the modules and at least 7 cm free space underneath the

modules. The cooling vents are not allowed to be covered.

• Due to load carrying capacity reasons and electromagnetic compatibility, the mounting

rail should be screwed into the grounded, metal back wall at intervals of 10 cm.

• The maximum environmental temperature during operation (usually 60° C) refers to the

air temperature underneath the modules (air inlet).

• Sufficient distance must be left between devices which cause high electromagnetic

interference (e.g. frequency converters, transformers, motor regulators, etc.). The

distance between the devices and the PLC should be as large as possible. If possible

they should be shielded using a metal partition (VACOPERM® 7)

Inserting and Removing Modules

• Modules should never be inserted or removed while the PLC is switched on (except I/O

modules).

• Unplug cabled connectors before modules are removed.

• Power connectors are not allowed to be inserted or removed if voltage is still being

supplied (remove power).

Inserting and Removing I/O Modules while the Controller is Running

I/O modules are allowed to be inserted and removed under the following conditions:

• Connectors are not allowed to carry voltages and must be removed.

• When inserting the module, please note that it takes approx. 2 s to tip the module back

into place.

• Unless switching a module during operation is supported by the software, removing a

module causes an emergency stop of the controller.

Storage and Storage Temperatures

For modules that do not have buffer batteries or rechargeable batteries, a storage temperature

of -20 to +70° C is allowed. Modules with buffer batteries or rechargeable batteries are allowed

to be stored at a temperature of -20 to +60° C. If applicable, other temperatures are listed in the

technical data for the modules.

8. Environmental Temperature during Operation / Relative

Humidity

The following values are valid for all 2005 modules if no other values are listed in the “Technical

Data” section.

The “Power” column contains values for the power provided or the power required by the

module. In this way, a power balance can be calculated quickly and easily for a certain hardware

configuration.

The power provided by the power supply modules is shown with a “+” sign. The power required

by a module is shown with a “−” sign.

To calculate the power balance, the positive and negative power values should be added

together. The sum is not allowed to be less than zero