ABB control board 3ADT220072R0004 SDCS-CON2-21 RMIO-01C brand new off the shelf

Description

RMIO-01C The power that runs the module itself comes from the power supply in the Bus Interface Unit. An

external source of AC power must be provided to power the loads.

LEDs

Individual LEDs (logic side), RMIO-01C visible through the transparent portion of the module top, indicate the

on/off status of each output.

Host Interface

Intelligent processing for this module is performed RMIO-01C by the Bus Interface Unit or elsewhere in the

system. This includes configuring features such as output default and fault reporting. The module

has 16 bits (two bytes) of discrete output data. A Bus Interface Unit is required to obtain this output

data from the host and/or local processor.

RMIO-01C After checking the Board ID and verifying that the module is receiving appropriate logic power

from the Bus Interface Unit (as reflected by the state of the module’s Power LED), the Bus

Interface Unit then sends output data to the module in serial format. During transmission, the

module automatically loops this data back to the Bus Interface Unit for verification. The module

also provides the Bus Interface Unit with the diagnostic status of the fuse on the output group.

Serial-to-parallel converters convert this data into the parallel format needed by the module. Opto

isolators isolate the module’s logic components from field outputs. Power from the external power

supply is used to power the switches that drive the loads.

RMIO-01C The maximum rating of 1 Amp per point applies to the long term capacity of each point. Because

of overall heat dissipation and current capacity of module pins, the maximum current capacity for

each module is limited to 4 Amps with proper derating.

The following illustration shows an example of the RMIO-01C relationship between total module load current

and ambient temperature.

The module’s 5 Amp fuse protects the entire module from exceeding the maximum current rating.

The fuse does not protect output points from exceeding the maximum per-point current rating.

If the fuse blows, the module’s PWR LED goes off and a Blown Fuse diagnostic is sent to the BIU.

Replacement fuses must be:

5A, 5 x 20mm slow-blow type

If the fuse blows, disconnect power, RMIO-01C remove the module and replace the fuse. CAUTION:

Electrostatic discharge can damage the module when it is not installed on an I/O Terminal Block.

Always observe normal ESD protection practices when handling an un-?installed module.

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Lead time problem
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