1.1 General Safety.......................................................................................................................................................................... 1

1.2 Personnel Requirements....................................................................................................................................................... 4

1.3 Electrical Safety........................................................................................................................................................................ 4

1.4 Installation Environment Requirements.......................................................................................................................... 6

1.5 Mechanical Safety................................................................................................................................................................... 8

1.6 Device Running Safety........................................................................................................................................................ 10

1.7 Battery Safety......................................................................................................................................................................... 12

1.8 Others....................................................................................................................................................................................... 15

2 Overview................................................................................................................................. 16

2.1 Model Description................................................................................................................................................................ 16

2.2 Working Principle.................................................................................................................................................................. 17

2.2.1 Conceptual Diagram.........................................................................................................................................................17

2.2.2 Working Modes.................................................................................................................................................................. 18

2.2.2.1 Normal Mode.................................................................................................................................................................. 18

2.2.2.2 Bypass Mode.................................................................................................................................................................... 19

2.2.2.3 Battery Mode................................................................................................................................................................... 20

2.2.2.4 Maintenance Bypass Mode......................................................................................................................................... 21

2.2.2.5 ECO Mode......................................................................................................................................................................... 22

2.3 Product Introduction............................................................................................................................................................ 23

2.3.1 Appearance.......................................................................................................................................................................... 24

2.3.2 Product Structure............................................................................................................................................................... 26

2.3.3 Power Module.................................................................................................................................................................... 31

2.3.4 Bypass Module................................................................................................................................................................... 33

2.3.5 Control Module.................................................................................................................................................................. 35

2.3.5.1 Overview........................................................................................................................................................................... 35

2.3.5.2 ECM..................................................................................................................................................................................... 36

2.3.5.3 Dry contact card............................................................................................................................................................. 38

2.3.5.4 Monitoring Interface Card.......................................................................................................................................... 40

2.3.6 MDU....................................................................................................................................................................................... 45

2.3.6.1 MDU (with a Flat LCD)................................................................................................................................................ 45

Issue 07 (2022-06-20)