Always
O
n UPS Systems
M0703_NX_Series_Operators_Manual
V1.25
2012-06-12 iv
TABLE OF CONTENTS
1
IMPORTANT SAFETY INSTRUCTIONS .................................................................................. 1
2
INTRODUCTION ....................................................................................................................... 3
2.1
System Description.........................................................................................................................3
2.2
Definitions........................................................................................................................................3
3
THEORY OF OPERATION ....................................................................................................... 5
3.1
General Topology............................................................................................................................5
3.2
Normal Operation Mode..................................................................................................................6
3.3
Back-Up Mode: ................................................................................................................................6
3.4
Reserve Mode:.................................................................................................................................7
3.5
Maintenance Bypass Mode: ...........................................................................................................7
3.6
Features and Advantages...............................................................................................................8
3.7
Rectifier ..........................................................................................................................................10
3.8
Inverter ...........................................................................................................................................11
3.9
Static Switch ..................................................................................................................................12
3.10
Maintenance Bypass Switch ........................................................................................................12
4
INTER-PCB DIAGRAM........................................................................................................... 13
5
DIMENSIONS & DRAWINGS ................................................................................................. 14
6
INSTALLATION ...................................................................................................................... 18
6.1
Transport........................................................................................................................................18
6.2
Delivery...........................................................................................................................................18
6.3
Storage ...........................................................................................................................................19
6.3.1
STORAGE OF THE UPS............................................................................................................19
6.3.2
STORAGE OF BATTERY...........................................................................................................19
6.4
Site & Environment Consideration..............................................................................................20
6.5
Unpacking ......................................................................................................................................21
6.6
Cable Selection..............................................................................................................................23
6.6.1
CURRENT RATING FOR INPUT ...............................................................................................23
6.6.2
CABLE SIZE FOR INPUT & OUTPUT .......................................................................................23
6.6.3
FUSE RATING & CABLE SIZE FOR BATTERY BANKS...........................................................27
6.7
Terminal Connection.....................................................................................................................28
7
FRONT PANEL ....................................................................................................................... 29
8
OPERATION ........................................................................................................................... 34
8.1
Switch On Procedure (Authorized Trained Personnel ONLY) ..................................................34
8.2
Shutdown Procedure ....................................................................................................................35
8.3
From Inverter To Manual Bypass Procedure..............................................................................36
8.4
From Manual Bypass To Inverter Procedure..............................................................................37
9
THE LCD DISPLAY ................................................................................................................ 38
9.1
Menu 0 – Main Menu .....................................................................................................................38
9.2
Menu 1 – Select Menu ...................................................................................................................39
9.3
Menu 2 – Status Warning Menu ...................................................................................................40