UPS/NTA GB/ITS16.F page 3
CONTENTS
1. PURPOSE OF THE IT-SWITCH ................................................................................................................................. 5
2. IT-SWITCH ARRANGEMENT ................................................................................................................................... 5
2.1.
SUMMARY TABLE OF THE VARIOUS FUNCTIONS AVAILABLE ON MODELS S, B AND E ................................................ 5
2.2.
FIXED 19" RACK VERSION (MODELS S OR B) ........................................................................................................... 6
2.3. HOT-SWAP 19" RACK VERSION (MODEL E) ............................................................................................................... 7
3. MAIN FEATURES ........................................................................................................................................................ 8
3.1.
CONNECTION MEANS ON THE REAR FACE: ................................................................................................................. 8
4. PRECAUTIONS UPON RECEIPT ............................................................................................................................. 9
5. GENERAL RECOMMENDATIONS FOR INSTALLATION ................................................................................. 9
6. ASSEMBLING MODELS "S", "B" OR "E" IN A STANDARD 19" CABINET .................................................. 9
7. SAFETY ....................................................................................................................................................................... 10
8. REAR PANEL OF THE FIXED IT-SWITCH
(MODELS S OR B) ....................................................................... 10
9. REAR PANEL OF THE HOT-SWAP IT-SWITCH (MODEL E) ........................................................................... 11
9.1.
REAR PANEL EQUIPPED WITH SOCKETS 16 A OF IEC320 TYPE ................................................................................ 11
9.2. REAR VIEW WITH TERMINALS (IT SWITCH 16A & 20A) ....................................................................................... 11
9.3.
DETAILS OF CONNECTION TERMINAL ...................................................................................................................... 12
10. EXTERNAL COMMUNICATION LINKS ............................................................................................................ 12
10.1.
REMOTE TRANSFER THROUGH POTENTIAL-FREE CONTACTS ................................................................................. 12
10.2.
REMOTE TRANSFER THROUGH SERIAL LINK .......................................................................................................... 12
11. OPERATING PRINCIPLE ...................................................................................................................................... 14
12. CONTROL PANEL .................................................................................................................................................. 15
12.1.
DESCRIPTION OF STATES AND ALARMS ................................................................................................................. 15
12.2.
KEY CONTROLS ..................................................................................................................................................... 16
12.3.
OPERATION EXPLANATIONS ........................................................................................................................ 16
13. COMMISSIONNING - OPERATION .................................................................................................................... 19
13.1.
PRELIMINARY CHECKS .......................................................................................................................................... 19
13.2.
SAFETY - REMINDERS ......................................................................................................................................... 19
13.3. PRELIMINARY CONDITIONS ................................................................................................................................... 19
13.4. LOAD SUPPLY ....................................................................................................................................................... 19
13.5.
CHANGING THE SOURCE PRIORITY (MODELS S, B AND E)..................................................................................... 19
13.6. LOAD DISCONNECTION ......................................................................................................................................... 20
13.7. TRANSFER TO MANUAL BYPASS (IT-SWITCH MODEL E) .................................................................................... 20
13.8.
SEAMLESS REPLACEMENT OF THE ELECTRONIC RACK (IT-SWITCH MODEL E) .................................................... 21
14. DESCRIPTION OF THE VARIOUS STATES ...................................................................................................... 22
14.1.
TRANSFER IMPOSSIBLE ......................................................................................................................................... 22
14.2.
IMMINENT SHUTDOWN .......................................................................................................................................... 22
15. GENERAL ALARM ................................................................................................................................................. 22
16. DIFFICULTIES DURING COMMISSIONING .................................................................................................... 23
17. MAINTENANCE ...................................................................................................................................................... 23
18. TROUBLE SHOOTING ........................................................................................................................................... 23