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Generac Power Systems PowerManager PM-GC

Generac Power Systems PowerManager PM-GC
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POWER SYSTEMS, INC.
®
ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS
SHOULD ATTEMPT INSTALLATION!!
DANGER
PowerManager
Generator Controller
(PM-GC)
This manual should remain with the unit.
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Generac Power Systems PowerManager PM-GC Specifications

General IconGeneral
ModelPM-GC
PhaseSingle-phase
CompatibilityGenerac generators
FunctionLoad management
Input Voltage120/240 VAC
Frequency60 Hz
Operating Temperature-20°C to 60°C

Summary

Introduction to PowerManager Generator Controller

Thorough Manual Review

Emphasizes the importance of understanding the manual before operation for safe and efficient use of the equipment.

Operation and Maintenance Responsibilities

Covers operator responsibilities for safe operation, prompt maintenance, and proper care of the generator unit.

Obtaining Service and Support

Provides guidance on contacting authorized Generac dealers for assistance with starting, operating, and servicing procedures.

Authorized Dealer Locator

Offers contact information to locate the nearest authorized Generac Service Dealer for assistance.

Safety Rules and Hazard Warnings

Important Safety Instructions

Crucial instructions for safe installation, operation, and maintenance, stressing adherence to warnings and precautions.

General Hazards

Outlines general safety precautions related to generator installation, operation, moving parts, and ventilation.

Electrical Hazards

Details dangers of lethal electrical shock from generator and utility power, and precautions during operation and maintenance.

Fire Hazards

Stresses proper installation, maintenance, and keeping the area clear of combustibles to prevent fire risks.

Explosion Hazards

Advises against smoking around the generator and keeping the area clean and free from debris to prevent explosions.

Section 1 - General Information

Equipment Description

Describes the basic operation of a standby system including power outage sensing, transfer switch, and generator startup.

Engine Protective Devices

Explains sensors and functions designed to protect the engine from damaging conditions like low oil pressure or high temperature.

DC Fuses

Identifies the location and function of DC fuses that protect the panel wiring and components from overload.

Control System Components

Lists and briefly describes key components of the control system, including AVR and throttle actuator modules.

Section 2 - Installation

Field Wiring

Provides instructions and specifications for connecting the generator, emphasizing compliance with all local and national codes.

Control Console Components

OFF Mode Operation

Explains the OFF mode of the keyswitch, in which the generator will not start.

MANUAL Mode Operation

Describes MANUAL mode for immediate generator starting, primarily intended for limited testing of the unit.

AUTOMATIC Mode Operation

Covers AUTOMATIC mode, the normal operation state where the unit starts automatically when needed.

Section 3 - Operation

The Optional Display Unit

Details the features, mounting options, and cable requirements for the optional programmable remote display.

Software Version Display

Shows where to find the software version numbers for the PM-GC and display for troubleshooting and support.

On Screen Diagnostics

Introduces the on-screen diagnostic features for monitoring system status and troubleshooting digital I/O.

Analog Diagnostics

Details how to interrogate sensors connected to analog channels for diagnostics by reading raw unprocessed data.

Communications Diagnostics

Guides on testing and diagnosing communication port status, data transmission, and error conditions.

Alarms and Warnings System

Explains the built-in alarm system, how it alerts personnel, and the conditions that trigger alarms or warnings.

Programmable Parameters Overview

Introduces parameters that can be configured to control generator starting, stopping cycles, and operating settings.

Parameter Details

Details various programmable parameters including preheat, cranking, speed, voltage, and frequency settings.

Under Speed (RPM) Monitoring

Describes the alarm and shutdown conditions related to the engine running below the set under speed threshold.

Frequency Parameter Details

Details alarm and shutdown conditions for over and under frequency, and their respective setpoints and hysteresis.

Fuel Level Monitoring

Details alarm and shutdown conditions for high and low fuel levels, noting they are disabled unless a probe is fitted.

Critical Low Fuel Level

Details alarm and shutdown conditions for critical low fuel levels, noting they are disabled unless a probe is fitted.

Running Hours Tracking

Explains how the PM-GC tracks and displays accumulated engine running hours, noting a minimum duration for recording.

Exercise Function

Describes how the generator should be programmed to exercise automatically via remote start or PLC functions.

Serial Communications

Details the RS232 and RS485 communication ports and their configurations for connecting to other devices.

Additional Panel Components

Lists and describes other components found on the control panel, such as the alarm horn and emergency stop switch.

Section 4 - Notes

Section 5 - Warranty Information

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