GE LP 33 7.2.4 Shutdown of a single unit in a parallel system

Modifications reserved Page 48/57

OPM_LPS_3UO_30K_40K_0US_V010.doc Operating Manual LP 33 Series 30 & 40 kVA

7.2.4 Shutdown of a single unit in a parallel system

With purpose to separate one unit from the parallel system.

1. Switch OFF the inverter only on this unit entering the screen:

MENU/COMMAND MENU/INVERTER OFF

Attention: to switch OFF permanently the inverter the key

Enter must be pressed 2 times.

COMMAND MENU

INVERTER ON

INVERTER OFF *

2. Switch OFF the output switch Q1 (0) only on this unit.

3. Perform the command total off only on this unit.

4. Remove the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)

only on this unit.

5. In order to discharge the DC link capacitors, start once more

the inverter only on this unit through the screen:

MENU/COMMAND MENU/INVERTER ON

COMMAND MENU

INVERTER ON *

INVERTER OFF

Remark: command INVERTER ON will be enabled only when

the inverter voltage of each phase decreases

below 7 VAC (about 30 seconds).

INVERTER: U1= 7V

U2= 7V U3= 7V

Frequency = 60.0Hz

Synchronized

Before proceeding to step 6, check on the display panel that

the DC link voltage (both polarities) Udcp and Udcn has reached

the minimum voltage of 5 VDC (about 30 seconds).

Udcp= 5V Udcn= 5V

Ubp=0V Ubn=0V O

Charge level = 0%

Autonomy = 0min

6. Switch OFF the inverter only on this unit entering the screen:

MENU/COMMAND MENU/INVERTER OFF

COMMAND MENU

INVERTER ON

INVERTER OFF *

7. Switch OFF the mains power only on this unit at the AC input distribution panel.

END OF PROCEDURE

WARNING !

In case the unit should be disconnected and removed from the operating system, the

operation must be performed by qualified persons.

If an intermediate unit must be disconnected from a parallel system pay attention

do not open the control bus: keep the plugs J3 and J4 connected to the board “P16 -

Connector adapter RPA” (see Section 4.8.4).

Contents

Main GE Consumer & Industrial Power Protection Operating Manual Uninterruptible Power supply LP 33 Series 30 & 40 kVA 208 VAC UL / Series 0 Page g Preface Safety instructions Parallel version secured with RPA Table of contents 1 SAFETY RULES THE ONLY CONDITION SAVE THESE INSTRUCTIONS Safety symbols and warnings 2 INTRODUCTION 2.1 GENERAL DESCRIPTION 3 DESCRIPTION 3.1 BLOCK DIAGRAM AND MAIN ELEMENTS DESCRIPTION 3.2 OPERATION MODES Page Page 3.3 RPA PARALLEL SYSTEM 3.4 UPS PARALLELED ON THE SAME BATTERY 3.5 SERVICE AND TECHNICAL SUPPORT g 3.6 RECYCLING AT THE END OF SERVICE LIFE 4 LAYOUT 4.1 LAYOUT LP 33 Series / 30 & 40 kVA 5 SYSTEM HANDLING 5.1 CONTROL PANEL 5.2 COMMAND PUSH BUTTONS AND SWITCHES 6 LCD SCREEN 6.1 METERING SCREENS (Metering) LP 33 40kVA P1 = 70% SERVICE REQUIRED Udcp=215V Udcn=215V Ubp=164V Ubn=164V O Charge Level = 100% Autonomy = 15min Page 6.2 EVENT SCREENS (Alarm) 01.01.2005 12:15:45 NR=255 Status=A588 4580: INVERTER AND MAINS SYNCHRONIZED 6.2.1 Alarms list Page Page 6.2.2 Messages list Page Page 6.2.3 Event report LP 33 Series LP 33 Series Description of repair action taken: Actual situation: Remarks: 6.3 MENU SCREENS (Menu) Page Tel1: Tel1 enabled: N Tel2: Tel2 enabled: N LCD Display UPS NAME: LP 33 Language = ENGLISH ECO Mode Y d1 d2 d3 d4 d5 d6 d7 HOURS SELECTED 24 24 12 12 12 12 12 Page Page 7 OPERATION 7.1 PROCEDURES FOR SINGLE LP 33 Series 7.1.1 Start-up of the LP 33 Series Page 7.1.2 UPS shutdown with load transfer on manual bypass (Q2) Page 7.1.3 Start-up following the operation on manual bypass (Q2) 7.1.4 Complete shutdown U2= 7V U3= 7V Frequency = 60.0Hz Synchronized 7.1.5 Restore to normal operation after total off 7.1.6 Restore to normal operation after EPO Emergency Power Off NR=255 Status=A588 4563: 7.2 PROCEDURES FOR PARALLEL SYSTEM LP 33 Series 7.2.1 Parallel System start-up of the LP 33 Series 7.2.2 Parallel UPS shutdown with load transfer on manual bypass (Q2) U2= 7V U3= 7V Frequency = 60.0Hz Synchronized 7.2.3 Start-up following the operation on maintenance bypass (Q2) any one of the units 7.2.4 Shutdown of a single unit in a parallel system 7.2.5 Start-up an additional unit in a parallel system 7.2.6 Complete shutdown of a parallel system 7.2.7 Restore to normal operation after total off 7.2.8 Restore to normal operation after EPO Emergency Power Off NR=255 Status=A588 4563: 8 OPTIONS 8.1 OPTIONS GENERAL VIEW 9 MAINTENANCE 9.1 GENERAL MAINTENANCE 9.2 COOLING FAN MAINTENANCE 9.3 BATTERY MAINTENANCE 9.4 SERVICE REQUIRED LP 33 40 kVA = 70% SERVICE REQUIRED 10 NOTES 10.1 NOTES FORM RIDER FOR WARRANTY FOR SALE OF SiteProTM, DIGITAL ENERGYTM SG Series and LP Series UPS.