Unipower TPCMQ24 SERIES, Руководство по эксплуатации

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TPCMQ DC/DC CONVERTER SERIES
OPERATING MANUAL
13
C O R P O R A T I O N
the output current to the load. N+1 redundancy with quick replacement of
a failed module results in virtually infi nite MTBF.
Table 13-1 Redundant and Non-Redundant Operation
MODULE
MODEL NO.
OUTPUT
VOLTS
MODE NO. OF
MODULES
MAX. OUTPUT
CURRENT
OUTPUT
WATTS
TPCMQ48-12/54
TPCMQ48-12/54 12V
12V 2+1 Redundant
Non-Redundant
3
3 108.4A
150.0A 1300
1800
TPCMQ48-13/48
TPCMQ48-13/48 13.6V
13.6V 2+1 Redundant
Non-Redundant
3
3 95.6A
143.4A
1300
1950
TPCMQ48-24/29
TPCMQ48-24/29 24V
24V 2+1 Redundant
Non-Redundant
3
3 58.4A
87.6A 1400
2100
TPCMQ48-27/26
TPCMQ48-27/26 27.2V
27.2V 2+1 Redundant
Non-Redundant
3
3 51.4A
77.1A 1400
2100
TPCMQ24-48/20
TPCMQ24-48/20 48V
48V 2+1 Redundant
Non-Redundant
3
3 41.6A
62.4A 2000
3000
TPCMQ24-54/18
TPCMQ24-54/18 54.4V
54.4V 2+1 Redundant
Non-Redundant
3
3 36.8A
55.2A 2000
3000
13.2 Non-Redundant Operation. Higher output current can be achieved by
operating the rack/shelf in a non-redundant mode as also seen in Table
13-1. However, in this case if a converter module fails, the load will lose
power since only part of the required current can be supplied by the re-
maining modules, and they will go into current limit. The failed converter
module, however, can be quickly replaced to restore the load current.
Note that the rack/shelf output current is limited to 150A, and therefore the
output of three 12V modules is not 162.6A as is their capability.
13.3 Multiple Parallel Shelf Operation. Multiple rack/shelves can also be
operated in parallel by interconnecting their current share terminals (J4 Pin
10). The total power can be expanded by several times. In this case N+1
redundant operation is achieved by reserving one module of the total for
redundancy. For example, if two full 19-inch rack/shelves are employed
with a total of six converter modules, then for 5+1 redundancy the full load
must be able to be carried by the output of fi ve modules. In such applica-
tions each set of remote sense wires must be separately connected to
the point of load. See Figure 7 for a simplifi ed illustration of two converter
rack/shelves connected in parallel.