3.2.12  
LUNA2 
 

Introduction  
LUNA2 (Linepowered Unit for Network-based Architecture No. 2) is used as the central power supply unit in HiPath 3800. Depending on the system configuration up to three LUNA2 modules can be used in the basic cabinet and up to four LUNA2 modules can be used in the expansion cabinet.
When expanding the HiPath 3800 to a two-cabinet system, two LUNA2 modules in the basic cabinet and three LUNA2 modules in the expansion cabinet are enough to supply the maximum configuration in Table 2-26. For information on how to calculate the number of LUNA2 modules required, see Page 3-61.
You can use a third LUNA2 in the basic cabinet and a fourth in the expansion cabinet to ensure error-free operation if one LUNA2 module fails (redundant LUNA2) or to charge a connected battery pack or a PowerBox PB3000 (with 4 batteries 12 V/7 Ah).
It is not possible to combine both LUNA2 operating modes redundant LUNA2 and battery charger LUNA2.  
LUNA2 supports power supply and battery management functions. No other components are required if it is operated as a power supply. The following options are available for emergency battery operation in the event of a power cut, i.e. the function UPS:
 •   Connection of battery packs 4 x 12 V/7 Ah (S30122-K5950-Y200) per system cabinet. The batteries are charged via the redundant LUNA2 in the respective system cabinet.
Note: Only the S30122-K5950-Y200 battery back is approved for use with LUNA2.
 •   Connection of the Power Box PB3000 with 4 batteries 12 V/7 Ah (4 x V39113-W5123-E891) per system cabinet. The batteries are charged via the redundant LUNA2 in the respective system cabinet.
Note: Only the V39113-W5123-E891 batteries are approved for use with the Power Box PB3000.
 •   Connection of the Power Box PB3000 with 4 batteries 12 V/7 Ah (4 x V39113-W5123-E891) and LUNA2 as battery charger per HiPath 3800 system.
Note: Only the V39113-W5123-E891 batteries are approved for use with the Power Box PB3000.
LUNA2 is used in all countries.

Part numbers  
 •   LUNA2: S30122-K7686-A1, S30122-K7686-M1
For production-related reasons, two different LUNA2 modules with the same functions are used. Technically identical, the two models have minor mechanical differences and are fully compatible with each other.
 •   Battery pack 4 x 12V/7 Ah: S30122-K5950-Y200
Weight (including batteries): 14.1 kg
Dimensions (length x width x height): 280 mm x 160 mm x 140 mm
(the connection cable for LUNA2 is part of the battery pack)
 •   Power Cabinet PB3000 (see Page 9-6)

Technical Specifications  
 •   Nominal voltage range: 110 Vac - 240 Vac
 •   Nominal frequency: 50 Hz - 60 Hz
 •   Output voltage (battery charging voltage, if a LUNA2 is used as a battery charger): -54.7 VDC; -53.5 VDC (for gel cell batteries, currently not released)
 •   Output current (battery charge current, if a LUNA2 is used as a battery charger): max. 2 A
 •   Bridging times
Table 3-22 lists the maximum possible bridging times (emergency battery operation in case of power failure) with 48-V/7-Ah battery pack (S30122-K5950-Y200), and Powerbox PB3000 (S30177-U773-X).
   
 Table 3-22   LUNA2 - Bridging Times with 48-V/7-Ah Battery Pack, and Powerbox PB3000
 System  
 Power supply unit  
 Load levels  
 Maximum bridging time  
HiPath 3800  
2 x LUNA2 per system cabinet as PSU  
1 x LUNA2 per system cabinet as battery charger  
1 x battery pack 48 V/7 Ah per system cabinet  
60 % nominal load  
 25 min  
HiPath 3800  
2 x LUNA2 per system cabinet as PSU  
Powerbox PB3000 for each system with 1 x LUNA2 as battery charger and 4 x 12-V/7-Ah batteries  
60 % nominal load  
 25 min  
Measurement conditions:  
 •   All measurements were performed at a room temperature of approximately 22 °C (71.6 °F).
 •   The batteries were new and fully charged when measurement started.

Front view of LUNA2 with indicators and switches  
 Figure 3-16   LUNA2 Front Panel
 
 •   LED for displaying the operating status:
   -   Illuminated = LUNA2 is operating as power supply unit
   -   Flashing = LUNA2 is operating as a battery charger
   -   Off = At least one secondary operating voltage is outside the tolerance zone. In this case
a) the voltage feed for LUNA2 may not be sufficient (an additional LUNA2 module is required. For information on how to calculate the number of LUNA2 modules required, see Page 3-61.).
b) LUNA2 may be defective (the board must be replaced).
 •   ON/OFF switch for secondary operating voltages (system supply voltages)
   
Caution  
The switches for deactivating the secondary operating voltage (system supply voltage) must be set to "DC-OFF" on all LUNA2s during maintenance work that requires the system to be de-energized (forexample, central board replacement). The system is only in de-energized state if the switches on ALL LUNA2s are set to "DC-OFF" position.  
The system is only restarted if all LUNA2 switches are returned to the "DC-ON" position.  
 •   Switches for setting the operating mode (the operating mode must be set before the outer panel is mounted):
   -   Mode 1: For use as power supply (LED illuminated)
   -   Mode 2a: For use as battery charger (LED flashing) with a charging voltage of 54.7 VDC
   -   Mode 2b: For use as battery charger (LED flashing) with a charging voltage of 53.5 VDC
   
From a technical viewpoint, there are no differences between the LUNA2 slots. A LUNA2 can be used in all slots, regardless of the selected operating mode.  
To achieve a uniform LUNA2 system configuration worldwide, the following rules should be observed:  
 •   The power supplies that are used to supply the system directly should be plugged in at LUNA2 slots 1, 2, and 3 (expansion cabinet only).
 •   At the LUNA2 slot marked "4", the only power supplies that should be plugged in are those
   -   used for LUNA2 redundancy (set to mode 1).
   -   used to charge batteries (set to mode 2a or mode 2b).

Slots  
Push the LUNA2 power supply unit into the slots provided in the lower part of the system cabinet shelf until you hear a click (see Figure 4-18).
The power supply unit slots must be covered with the outer panel shown in Figure 3-17 (basic cabinet) and in Figure 3-18 (expansion cabinet) before the system is started up.
 Figure 3-17   LUNA2 slots in the basic cabinet (outer panel mounted)
 
 Figure 3-18   LUNA2 Slots in the Expansion Cabinet (With Outer Panel Mounted)
 

Calculating the number of LUNA2 modules required  
The number of LUNA2 modules required in relation to the number and type of peripheral boards installed can be calculated using the following table.

 Table 3-23   Determining the Number of LUNA2 Modules Required Per Cabinet
   
 Number of peripheral boards per cabinet  
 STMI2, SLMA and/or SLCN available  
 Number of LUNA2s required per cabinet  
Basic cabinet  
 < 5  
 no  
 1  
 < 5  
 yes  
 2  
  5  
 no  
 2  
  5  
 yes  
 2  
Expansion cabinet  
 < 5  
 no  
 1  
 < 5  
 yes  
 2  
  5  
 no  
 2  
  5  
 yes  
 3  
  10  
 no  
 3  
  10  
 yes  
 3  
Examples for a one-cabinet system:
   a)   Basic cabinet with CBSAP and peripheral boards (without STMI2, SLMA or SLCN)
     •  A single LUNA2 can supply a CBSAP and up to four peripheral boards.
     •  A second LUNA2 is required for five or more peripheral boards.
     •  A third LUNA2 can be used as a battery charger or as a redundant LUNA2.
   b)   Basic cabinet with CBSAP and peripheral boards (with STMI2, SLMA and/or SLCN)
     •  Two LUNA2s are always required to supply a CBSAP, peripheral boards and STMI2, SLMA and/or SLCN.
     •  A third LUNA2 can be used as a battery charger or as a redundant LUNA2.

HiPath 3000/5000 V9, Service Documentation, Issue 7   up Top
Disclaimer & Copyright   ID: P31003H3590S100017620   2012-06-25