Eaton ATC-900 User Manual

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Automatic Transfer Switch Controller,
ATC-900 Operation and Maintenance
Manual,
Instructional Booklet
Rev:3/2021
2.05-3
Description Page
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . 6
3. Operator Panel and Display Menus . . . . . . . . . . . . . . . 12
4. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5. Setpoint Programming and I/O Programming
Using the Color Display ........................18
6. Troubleshooting and Maintenance .................28
7. Historical & Event Display . . . . . . . . . . . . . . . . . . . . . 32
Appendix A: Feature List and Status Display Messages . 34
Appendix B: I/O Descriptions . . . . . . . . . . . . . . . . . . . 43
Appendix C: Operational Flowcharts . . . . . . . . . . . . . . 45

Eaton ATC-900 Specifications

General

Category	Controller
Frequency	50/60 Hz
Protection Class	IP20
Weight	0.5 kg
Operating Temperature	-20°C to 70°C
Storage Temperature	-40°C to 85°C