Liebert 7200 Series User Manual page 8

Single module parallel 1+1

Table of Contents

4.7 Input Harmonic filter ............................................................................................................................................... 4-19

4.7.1 Introduction ...................................................................................................................................................... 4-19

4.7.2 Specification ..................................................................................................................................................... 4-19

4.7.3 Notes on connection ......................................................................................................................................... 4-19

4.8 Communications Kits (4645102 U) ......................................................................................................................... 4-21

5. Chapter 5 - Maintenance.............................................................................................................................................. 5-1

5.1 Introduction ............................................................................................................................................................... 5-1

5.2 Safety Precautions ..................................................................................................................................................... 5-1

5.3 Scheduled Maintenance ............................................................................................................................................. 5-1

5.3.1 Daily checks........................................................................................................................................................ 5-1

5.3.2 Weekly checks .................................................................................................................................................... 5-2

5.3.3 Annual Service.................................................................................................................................................... 5-2

5.3.4 Extended service................................................................................................................................................. 5-3

5.3.5 Battery maintenance............................................................................................................................................ 5-3

5.4 UPS status parameters ............................................................................................................................................... 5-4

6. Chapter 6 - Trouble shooting ....................................................................................................................................... 6-1

6.1 Trouble shooting UPS Systems ................................................................................................................................. 6-1

6.1.1 Operating parameters and limitations ................................................................................................................. 6-1

6.1.2 General Trouble shooting Procedure .................................................................................................................. 6-1

6.2 LED interpretation..................................................................................................................................................... 6-3

6.3 Display panel message interpretation......................................................................................................................... 6-4

7. Chapter 7 - 1+1 Parallel System .................................................................................................................................. 7-1

7.1 Generality .................................................................................................................................................................. 7-1

7.2 Installation procedure (Separete batteries)................................................................................................................. 7-4

7.2.1 Preliminary Checks............................................................................................................................................. 7-4

7.2.2 Power cables ....................................................................................................................................................... 7-4

7.2.3 Control cables ..................................................................................................................................................... 7-6

7.3 System start-up and shutdown procedures (Separate batteries) ................................................................................. 7-7

7.3.1 System start-up ................................................................................................................................................... 7-7

7.3.2 Switching the system to maintenance bypass from normal operation. ................................................................ 7-7

7.3.3 Switching the system ON from a maintenance power down condition. .............................................................. 7-7

7.3.4 Switching OFF and isolating one UPS while the other remains in service. ........................................................ 7-7

7.3.5 Switching ON a UPS that was previously switched OFF and isolated from the system. .................................... 7-7

7.3.6 Complete system shutdown................................................................................................................................. 7-8

7.4 Installation procedure (Common battery) .................................................................................................................. 7-9

7.4.1 Connection between UPS and "battery auxiliary distribution box" .................................................................... 7-9

7.5 System start-up and shutdown procedures (Common battery) ................................................................................. 7-12

7.5.1 System start-up ................................................................................................................................................. 7-12

7.5.2 System maintenance by-pass configuration procedure...................................................................................... 7-12

7.5.3 Procedure to switch the system from the maintenance by-pass mode to the normal operating

condition .................................................................................................................................................................... 7-12

7.5.4 Switching OFF and isolating isolation one UPS while the other remains in service......................................... 7-13

7.5.5 Switching ON a UPS that was previously switched OFF and isolated from the system. .................................. 7-13

7.5.6 Complete system shutdown............................................................................................................................... 7-13

8. Chapter 8 - Specification Single Module..................................................................................................................... 8-1

Page vi

Issue 6

(03/98)

document in response to "powersure ups"

Table of Contents