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6. E
NGINEERING
R
6.1.
ATINGS
Table 6-1: Ratings and Specifications – 230 - 240VAC
M
ODEL
P
HASE
N
UMBERS
1
M3545P-L015
3
Table 6-2: Ratings and Specifications – 460 - 480VAC
M
ODEL
P
HASE
N
UMBERS
1
M3545P-H015
3
A N
HP R
OTE ON
Modules are able to provide full braking HP for at least 60 seconds. Modules can
provide less than full braking HP for longer times.
Each unit's maximum current must be derated by 2% per degree Celsius ambient
above 40°C.
D
6.2.
ERATING
Operating regenerative power supplies are useful when large regenerative energies
are present and need to be dissipated in high power applications.
The combined units must be derated by 10% each. The derating for parallel systems
is shown in Table 6-3.
Two units are the maximum number that can be safely operated in parallel. Units
with different current ratings should not be in parallel together on the same DC bus.
I
NDIVIDUAL
C
URRENT
W
L
6.3.
ATT
OSS
Tables 6-1 and 6-2 list the maximum watt loss generated by each of the M3545P units.
When installing the units in an additional enclosure, consideration should be given to
internal temperature rise. The watt loss rating in these tables is based upon the
maximum continuous regen capability of each unit. The M3545P is >97% efficient
when fully loaded.
D
ATA
C
HARTS
DC R
C
EGEN
HASSIS
S
C
.
TYLE
ONT
5 A
M4
15 A
DC R
EGEN
C
HASSIS
S
C
.
TYLE
ONT
5 A
M4
15 A
ATINGS
P
M3545P
ARALLEL
Table 6-3: Derating M3545P in Parallel
U
N
NIT
UMBER IN
R
P
ATING
ARALLEL
15A
C
URRENT
P
C
EAK
ONT
7.5 A
2.25 HP
22.5 A
7 HP
C
URRENT
P
C
EAK
ONT
7.5 A
4.5 HP
22.5 A
14 HP
DC R
C
EGEN
C
.
ONT
2
27A
User's Manual
P
M
OWER
AX
W
.
P
ATT
EAK
67 W
3.5 HP
117 W
10.5 HP
P
M
OWER
AX
W
ATT
.
P
EAK
67 W
7 HP
117 W
21 HP
URRENT
P
.
EAK
36A
C
.
ONT
L
OSS
C
.
ONT
L
OSS
27
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