ABB REF615E_G HBFEAEAGNDA1ABA1XG Feeder protection and control relay

Description

REF615E_G 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 REF615E_G Unit with the diagnostic status of the fuse on each 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.

REF615E_G The maximum rating of 2 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 group is limited to 2 Amps. (Each group consists of two outputs).

The following illustration shows an example of the relationship between total module load current

and ambient temperature

This module has eight outputs arranged as four groups of 2. Each group is isolated from the others.

Connect each pair of output devices to a pair of Output terminals (1/2, 3/4, 5/6, 7/8) on the I/O

Terminal Block. Connect the other side of the output devices to the N side of the power supply.

Connect the H side of the power supply to the appropriate H terminal for the two output points

The Terminal Block with box terminals has 25 terminals for each module. Each terminal

accommodates one AWG #14 (avg 2.1mm2 cross section) to AWG #22 (avg 0.36mm2 cross

section) wire, REF615E_G or two wires up to AWG #18 (avg. 0.86mm2 cross section). When an external jumper

is used, the wire capacity is reduced from AWG #14 (2.10mm2 ) to AWG #16 (1.32mm2 ).

The I/O Terminal Block with barrier terminals has 18 terminals per module. Each terminal can

accommodate one or two wires up to AWG #14 (avg 2.1mm2 cross section).

The I/O Terminal Block with Connectors has one 20-pin male connector per module.

I/O Terminal Block wiring assignments for this module are shown below.

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