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I-Gard IPC DSP OHMNI - User Manual

I-Gard IPC DSP OHMNI
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Instruction Manual C-409
HIGH RESISTANCE
GROUNDING SYSTEM
DSP OHMNI
DSP OHMNI
the power to protect

Table of Contents

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Summary

Introduction to High Resistance Grounding Systems

DSP System Application Overview

Installation Procedures for DSP Modules

Wiring Guidelines for DSP System

Display Module Screens and Navigation

DSP System Setup and Configuration

Communications Setup

Configures RS-485 network settings, including MODBUS ID and baud rate.

Grounding Resistor (NGR) Setup

Sets the grounding resistor (NGR) value based on system current limits.

Feeder Module Identification and Priority

Assigns identification numbers and trip priorities to feeder modules.

Pulse System Configuration

Configures pulse settings for fault location, including inversion and frequency.

Alarm Relay Mute Function Setup

Configures the alarm relay MUTE function for external devices.

System Self-Test Procedure

Performs basic functionality tests on the system without interrupting circuit breakers.

DSP System Operation and Monitoring

Screen Navigation and Status Indicators

Navigates system screens, understanding status lights and messages.

Pulse System Activation for Fault Location

Activates and controls the pulse system for fault location detection.

Alarm Indications and Fault Display

Performing System Self-Tests

Event Logging and Interpretation

Maintenance and Field Testing

Service and Technical Support

Communications Protocol and Setup

Technical Specifications of DSP System

DSP-DPS Power Requirements

Lists input power voltage and consumption for the DSP-DPS module.

DSP-DPS Maximum Electrical Ratings

Details electrical ratings for control voltage, dielectric, and DC output.

Pulse Setup Parameters

Specifies pulse generation parameters like rates, modes, and output current.

DSP-DFM Module Settings

Outlines Feeder Module configuration settings for ground current and trip levels.

Contact Ratings for DSP Modules

Lists specifications for DSP-DFM and DSP-DPS alarm and trip contacts.

Performance and Accuracy Metrics

Provides accuracy specifications for DSP-DFM and DSP-DSM modules.

Outline Dimensions of DSP Modules

Additional Information and Support

Related Instruction Manuals

I-Gard IPC DSP OHMNI Specifications

General IconGeneral
Short Circuit Current Rating (SCCR)200 kA
Protection ModesL-N, L-G, N-G
EnclosureNEMA 4X
DiagnosticsLED status indicators
ComplianceUL 1449 4th Edition
CertificationsUL

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