Chapter 3 : Modular systems
UPS/NTA GB/ DELMX_EXPC1C3C6.B
page 16
8.3. Modular systems with three UPS units or more
Q1
Q4
Q3
Q20
X20
ABP
BP
REC
INV
DCC
BAT
X50
Q1
Q4
Q3
Q20
X20
ABP
BP
REC
INV
DCC
BAT
X40
X10
X10
Q1
Q4
Q3
Q20
X20
ABP
BP
REC
INV
DCC
BAT
X10
MBP
Q5
*
*
*
X10 : rectifier input
X40 : bypass input
X50 : to the load
X20 : battery connection
REC : Rectifier
INV : Inverter
BAT : battery
DCC : battery charger converter
BP :
bypass facility
ABP : automatic bypass
MBP : maintenance bypass
* other protection upon request.
NOTE : in such a configuration, the system
is fitted with an EXTERNAL maintenance
bypass.
NOTE
: in any case, see the technical details of the diagram on the inner side of the UPS door.
8.4. Meaning of the pictograms
Rectifier and battery charger
Battery
Inverter
Output to the loads
Transfer impossible
Maintenance bypass
1
2
3
4
5
6
7
8
9
10
11
General alarm