Rockwell-automation 825P Modular Protection System Quick Start Guide Manual de usuario descargar pdf (Pagina 16)

Quick Start Guide — Allen-Bradley Bulletin 825-P Modular Protection System

Programming

Protection

Parameters

Use the following path with the front panel programming keys to access the

protection parameter settings:

MAIN > Set/Show > Relay > [Group]

See Appendix A for more details.

Output Relay and

Input Assignments

After the operational and protection parameter values are set, the next step is to

assign these functions to the relays.

Table E: Protection Parameters

Group Description

Overload Settings Thermal overload

Short Ckt Settings Short circuit

GF-CB Settings Ground/earth fault (core balance method)

GF-Res Settings Ground/earth fault (residual method)

Jam Settings Mechanical jam (overcurrent)

Undercurrent Settings Current-based underload detection

Current Imb Settings Current imbalance (asymmetry)

Prot. Disable Settings to disable protection elements during motor starting for a

user-specified time period

Start Monitoring Stall protection on motor start (current-time based)

Star-Delta Settings Settings for star-delta control

Start Inhibt Set Settings for starts/hour and antibackspin

Phase Rev Settings Phase reversal (sequence)

Speed Sw Set Stall protection on motor start (speed switch input monitoring)

PTC Settings Thermistor monitoring

RTD Settings RTD settings for use with optional RTD Scanner

Undervoltage Settings Voltage monitoring with optional voltage input card

Overvoltage Settings Voltage monitoring with optional voltage input card

VAR Settings Reactive power

Underpower Settings Power-based underload detection

Power Factor Settings Displacement power factor monitoring

Freq Settings Line frequency monitoring

Load Control Settings Settings for relay control based on motor loading

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Rockwell-automation 825P Modular Protection System Quick Start Guide Manual de usuario Pagina 16