Eaton ATC-300+ - User Manual

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O & M Manual for the EATON ATC-300+
Automatic Transfer Switch Controller
Instruction Booklet
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Description Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Status Monitoring and Setpoints . . . . . . . . . . . . . . . . . . 11
Typical Function of the ATC-300+ Controller . . . . . . . . . . 13
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Troubleshooting and Maintenance . . . . . . . . . . . . . . . . . . 24
Appendix A: Display Messages for Status and Timers . . . . 26
Appendix B: Operational Flowcharts . . . . . . . . . . . . . . . . 27
Appendix C: Display Menu Tree . . . . . . . . . . . . . . . . . . . 29
Appendix D: Pickup / Dropout Tables . . . . . . . . . . . . . . . 35
ATC-300+
Connected
Connected
Load
Step
Help
Lamp
Test
Engine
Test
Enter
Increase
Decrease
Bypass
TDNE/TDEN
Alarm
Reset
Unit Status
Available
Available
Source 1
Source 2

Eaton ATC-300+ Specifications

General

Frequency	50/60 Hz
Display	LCD
Protocols	Modbus RTU
Analog Inputs	2
Protection	Overload, Short Circuit
Cooling	Natural Convection
Certifications	CE, UL
Mounting	DIN Rail
Communication	RS-485

Summary

Hardware Description

Front Operator Panel

Details the front panel components, including the LCD display and pushbuttons.

Status Monitoring and Setpoints

Status Display Information

Provides messages regarding ATS status, source information, timer countdowns, and failure reports.

Source 1 and Source 2 Status Displays

Indicates present status of sources in terms of voltage and frequency.

History Display Counters

Setpoint Display Details

Shows presently programmed setpoints, which can be altered with password entry.

Typical Controller Functions

Typical Operation

Describes the typical operation of the ATC-300+ controller for transfer and re-transfer.

Control Input Descriptions

Details the five individual input control signals and their state definitions.

Automatic Operation Mode

Details automatic transfer and re-transfer based on programmed setpoints.

Manual Re-Transfer Procedure

Controller Operation

Automatic Mode Operation

Details automatic transfer and re-transfer based on programmed setpoints.

Monitor Mode Operation

Control Input Signals

Output Relay Functions

Programming the Controller

Programming Introduction

Password Entry and Security

Details the process of entering a password to access the programming mode.

Display Only Mode

Change Setpoints Mode

Enables users to step through and change setpoint values.

Programmable Features and Setpoints

Lists all programmable features and their associated setpoint possibilities.

Troubleshooting and Maintenance

Controller Troubleshooting Guide

Provides a guide to identify problems as external or internal to the unit.

Controller Replacement Procedure