Contents
Preface............................................................................................................................................................................. i
Safety warnings............................................................................................................................................................ i
Disclaimer.....................................................................................................................................................................ii
Amendment Register.................................................................................................................................................... iii
1.Safety precautions................................................................................................................................................ 5
2.Connecting Mains Power..................................................................................................................................... 6
3.Overview................................................................................................................................................................ 7
4.Getting Started...................................................................................................................................................... 8
4.1.Unpacking ...................................................................................................................................................... 8
4.2.Before switching ON....................................................................................................................................... 8
5.Installation............................................................................................................................................................. 9
5.1.Physical connection........................................................................................................................................ 9
5.2.Power supply.................................................................................................................................................. 9
5.3.Modbus RS-485 connection........................................................................................................................... 9
5.4.Configuration................................................................................................................................................ 10
5.5.Initial Power ON ........................................................................................................................................... 12
5.6.Status Indicators........................................................................................................................................... 12
5.6.1.Fault LED.............................................................................................................................................. 12
5.6.2.Buzzer................................................................................................................................................... 12
5.6.3.Relay Status LEDs................................................................................................................................ 12
5.6.4.RS-485 Comms Status LED.................................................................................................................. 13
6.Control Functionality.......................................................................................................................................... 14
6.1.Automatic Mode ........................................................................................................................................... 14
6.1.1.Backup & Rotate................................................................................................................................... 14
6.1.2.Example................................................................................................................................................ 14
6.2.Manual Mode................................................................................................................................................ 15
6.3.Rotation Test Mode...................................................................................................................................... 15
6.4.Modbus Slave Test Mode............................................................................................................................. 15
6.4.1.Modbus registers................................................................................................................................... 15
7.Troubleshooting ................................................................................................................................................. 17
Appendix A – Compatible Air-To-Air units................................................................................................................. 18
