Quick start guide, Trip relay assign – Rockwell Automation 825P Modular Protection System Quick Start Guide User Manual

Page 18

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Quick Start Guide

Allen-Bradley Bulletin 825-P Modular Protection System

18

Trip Relay Assign

The 825-P allows mapping of only protection trip elements to the Trip output relay.
Settings are presented as bit-enumerated strings. The second line of the display
identifies a given bit’s associated function. To assign a function to the Trip relay,
simply program a value “1” in the bit location for each element you desire to assign
using the TRIP A through TRIP D settings. The front panel display appears as
follows:

TRIPA=10110000
OVERLOAD

Table F: Trip Relay Settings

Bit

0

1

2

3

4

5

6

7

TRIP A

Overload

Undercurrent

Jam

Current
Imbalance

Short Circuit RTD - W/B

PTC

Ground Fault
(Res)

TRIP B

VAR

Underpower

Under-
voltage

Over-voltage Phase

Reversal

Power Factor

Speed
Switch

Ground Fault
(CB)

TRIP C

Start Time

Freq 1

Freq 2

RTD (Other)

RTD
(Ambient)

PTC Error

RTD Error

MCM Error

TRIP D

Comm Idle

Comm Loss

Remote Trip

Comm Fault

Reserved

Reserved

Reserved

Reserved

TIP

Make sure the Trip relay terminals (95, 96 and 98) are
labeled to correspond with the relay behavior setting
(Fail-Safe or Non-Fail-Safe).

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